Cisco Certified Network Associate (CCNA)

Cisco Certified Network Associate (CCNA)

Candidates have the option of gaining the certification by passing two tests (ICND1 640-822 and ICND2 640-816), or one single test (CCNA 640-802); the two-test

option has the advantage of allowing the candidate to focus on certain subjects.
The certification is valid for three years; at that time a CCNA holder must either

- re-take the CCNA or ICND exam, or
- take and pass an exam for one of the Professional (e.g., CCNP) or Specialist level certifications (excluding the sales specialist exams), or pass the CCIE written exam.

These exams are known by their corresponding numbers. When the curriculum of the exam changes the exam number also changes. The current exam number for CCNA is 640-802 (from 15 Aug 2007). New ICND Part1 (640-822 ICND1) and ICND Part2 (640-816 ICND2) available from 15 Aug 2007. Part 1 by itself will give you a CCENT.

These exams are conducted by authorized test centers at a cost of $125 USD each for the ICND1 or ICND2 exams and $150 USD for the full CCNA exam.

There is also the Cisco Networking Academy, which brings the CCNA and CCNP curricula into traditional educational institutions in over 150 countries. Students enrolled in Cisco Networking Academy can request exam vouchers that allow them to take the retired exam for an extended period of time.

CCNA 1 Final Exam (Option 2)

1 Which devices segment collision domains? (Choose two.)

transceiver
* router
* switch
hub
media

2. Refer to the exhibit. How many collision domains are present in the topology?

3
5
6
*7
8
9

3. Refer to the exhibit. An instructor in the network class has given the students the network diagram and asks the students to select the appropriate network devices. The goals are to provide a collision-free LAN environment and to provide Internet connectivity. What is the correct design?

Replace Box 1 with a hub and Box 2 with a router.
Replace Box 1 with a router and Box 2 with a bridge.
* Replace Box 1 with a Layer 2 switch and Box 2 with a router.
Replace Box 1 with a router and Box 2 with a Layer 2 switch.
Replace Box 1 with a bridge and Box 2 with a Layer 2 switch.

4. Refer to the exhibit. A network administrator attempts to increase the available bandwidth for workstation A by setting the NIC to full-duplex mode. After the configuration is changed, there are increased collisions and errors occurring. Why is this occurring in the network?

* The NIC is no longer detecting collisions.
The switch will not support full-duplex mode.
The hub will be continually producing a jam signal.
The cabling will not support bidirectional transmissions.

5. Refer to the exhibit. A network administrator is testing a connectivity issue in the network. The administrator discovers that host A cannot communicate with host B, host C, or RouterA. A ping command on host A to 127.0.0.1 succeeds. The NIC link indicator on host A is illuminated. Temporarily, the administrator removes the cable from host A and uses the LAN cable from host B to connect from host A to port 1 on the switch. While using the substitute cable, host A can communicate with host C and RouterA. At which layer of the OSI model was the problem occurring?

session
transport
network
data link
* physical

6. How many broadcast domains are shown in the diagram?

* three
four
five
six
seven
eight

7. A collision has occurred on an Ethernet network. Which three statements explain the CSMA/CD process? (Choose three.)

* After the jam signal, all transmission stops for a random period.
When the collision is detected, the hosts stop transmission immediately.When the collision is detected, the hosts stop transmission after eight microseconds.
When the backoff period expires, the hosts involved in the collision have priority to transmit.
* When the backoff period expires, each host checks to see whether the networking media is idle and then attempts to transmit.
* When the collision is detected, the hosts continue to transmit using a jam pattern for a short time to ensure that all hosts detect the collision.

8. Which of the following devices extend a collision domain? (Choose two.)

switch
* hub
bridge
router
* repeater

9. What should a network administrator consider when migrating to Gigabit Ethernet architecture from Fast Ethernet? (Choose three.)

* Existing NICs might need to be upgraded.
* Existing switches might need to be upgraded.
Existing NICs must support half-duplex mode.
Existing UTP wiring must be replaced with fiber.
* Existing UTP must be tested for CAT 5e compatibility.
Existing network topology must support shared media.

10. Refer to the exhibit. What must be configured on Host B to allow it to communicate with the Host C? (Choose three.)

the MAC address of RTA router interface connected to Switch 1
* a unique host IP address
the IP address of Switch 1
* the default gateway address
the MAC address of Host C
* the subnet mask for the LAN

11. Which binary number is a representation of the decimal number 248?

11101000
11110100
* 11111000
11111010

12. Which type of address is 223.168.17.167/29?

host address
multicast address
* broadcast address
subnetwork address

13. Workstation A sends data to workstation B. What will have to be altered as the data passes through the router? (Choose two.)
* Layer 1 bit pattern
* Layer 2 frames
Layer 3 packets
Layer 4 segments
Layer 5 -7 data

14. Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?

172.16.128.0 255.255.255.224
172.16.128.0 255.255.0.0
172.16.128.0 255.255.192.0
* 172.16.128.0 255.255.224.0
172.16.128.0 255.255.255.192

15. What is the correct number of usable subnetworks and hosts for the IP network address 192.168.99.0 subnetted with a /29 mask?

6 networks / 32 hosts
14 networks / 14 hosts
* 30 networks / 6 hosts
62 networks / 2 hosts

16. Refer to the exhibit. The internetwork in the exhibit has been assigned the IP address 172.20.0.0. What would be the appropriate subnet mask to maximize the number of networks available for future growth?

255.255.224.0
255.255.240.0
255.255.248.0
* 255.255.252.0
255.255.254.0
255.255.255.0

17. A NIC of a computer has been assigned an IP address of 172.31.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?

172.31.0.0
172.31.160.0
172.31.192.0
172.31.248.0
* 172.31.192.160
172.31.192.248

18. What are three characteristics of the TCP protocol? (Choose three.)

exchanges datagrams unreliably
is used to send IP error messages
* forces the retransmission of unacknowledged packets
* creates a virtual session between end-user applications
carries the IP address of the destination host in the TCP header
* is responsible for breaking messages into segments and reassembling them at their destination

19. A network user is using the FTP protocol to transfer data from the local host to an FTP server. The local host is also using the SNMP protocol to report the system status to the network management system. Which statement describes the communication from the host?

FTP and SNMP will use the same port number.
* FTP uses TCP to establish a session before any data is transferred.
The UDP session will reorder the SNMP data as it is received by the network management system.
The TCP protocol for the FTP transfer will use a random destination port number to the FTP server.

20. Which protocols are TCP/IP application layer protocols? (Choose two.)

UDP
* FTP
IP
* SMTP
TCP

21. Which technologies are considered to be WAN technologies? (Choose two.)
Ethernet
* DSL
Token Ring
* Frame Relay
FDDI

22. Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model?

data, segments, frames, packets, bits
data, packets, segments, frames, bits
* data, segments, packets, frames, bits
data, packets, frames, segments, bits

23. Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables?

Both cables are acceptable.
* The cable in Graphic A will produce more crosstalk.
The cable in Graphic A should be used in the more critical network segments.
The cable in Graphic A is preferred because it will be easier to crimp the connector.

24. Refer to the exhibit. Which type of UTP cable should be used to connect Switch1 to Switch2?
rollover
console
* crossover
straight-through

25. When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network?

1 and 2; 4 and 5
* 1 and 2; 3 and 6
3 and 6; 7 and 8
4 and 5; 7 and 8

26. Refer to the exhibit. Which type of cabling should be used at each of the connection points shown?

A-crossoverB- straight-throughC-straight-throughD-fiberE-straight-through
A-crossoverB-crossoverC-straight-throughD-fiberE-crossover
* A-straight-throughB-crossoverC-straight-throughD-fiberE-straight-through
A-fiberB-crossoverC-straight-throughD-crossoverE-straight-through
A-straight-throughB-crossoverC-crossoverD-fiberE-straight-through
A-crossoverB-crossoverC-straight-throughD-fiberE-straight-through

27. Refer to the exhibit. What type of cable connects the two routers together without any intermediary device?

console
rollover
* crossover
straight-through

28. Which cable diagram displays the end to end pinout for a console cable used with Cisco devices?

Cable A
* Cable B
Cable C
Cable D

29. Which subnet masks would be valid for a subnetted Class B address? (Choose two.)

255.0.0.0
255.254.0.0
255.224.0.0
255.255.0.0
* 255.255.252.0
* 255.255.255.192

30. What type of routing is it when the network administrator manually configures a route?

* static
dynamic
interior
exterior

31. Which statement describes a star topology?

Each host in the network is connected to a backbone cable that is terminated at both ends.
* Each host is connected to a hub or switch, either of which acts as a central point for all network connections.
Each host is directly connected to two other hosts to form a long chain of hosts.
Each host has a connection to all other hosts in the network.

32. Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate WAN links? (Choose three.)

link A
* link B
* link C
* link D
link E

33. A technician needs to connect a FastEthernet port from a router to a FastEthernet port on a switch. The graphic shows the RJ-45 cable ends for a patch cable. What result can be expected if this cable is used for the link?

* The cable will be able to pass traffic between the devices.
The cable has reversed-pairs, which will degrade the signal quality.
The cable has split-pairs, which will increase crosstalk and create an unreliable link.
The cable has all the wires reversed, which will prevent the link lights from indicating that there is link.

34. Refer to the received frame in the exhibit. In what two ways is the information from the received frame used by a switch? (Choose two.)

192.168.10.5 is used to create an ARP request.
192.168.10.5 is used to build the forwarding table.
1234.5678.1abc is stripped from the frame header.
* 192.168.10.11 is left intact as the frame is forwarded.
The switch compares 192.168.10.11 to the addresses in the routing table to make the forwarding decision.
* To make the forwarding decision, the switch looks in its switch table for address aaaa.bbbb.cccc.

35. Which layer of the OSI model defines the process of adding the source and destination IP address to a data packet?

transport
* network
data
linkphysical

36. Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication?

00-06-5B-88-DF-C3
00-B0-D0-7F-F7-46
00-0F-24-85-75-C0
00-0B-E5-64-BD-44
* 00-08-A3-B6-CE-02
00-08-A3-B6-CE-03

37. Refer to the exhibit. What device does Device X represent in the graphic to allow PC1 to ping PC4?

hub
* router
bridge
access point
Layer 2 switch

38. When the receiving workstation detects an error in the data it has received, it does not acknowledge receipt of the data. The source workstation retransmits the unacknowledged data. Which layer of the OSI model supports this process of retransmission?

network
application
session
* transport

39. A company has the following addressing scheme requirements: -currently has 25 subnets -uses a Class B IP address -has a maximum of 300 computers on any network segment -needs to leave the fewest unused addresses in each subnetWhat subnet mask is appropriate to use in this company?

255.255.240.0
255.255.248.0
* 255.255.254.0
255.255.255.0 255.255.255.128
255.255.255.248

40. What can be verified by successfully pinging the reserved loopback address on a host?

Connectivity exists between two hosts on the LAN.
* The TCP/IP stack of the local host is installed correctly.
A connection exists between a host and the default gateway.
The route a packet takes from the local host to a remote host is valid.

41. Refer to the exhibit. A company needs to attach workstation E at a point 150 meters from an existing hub. What device should be placed at location D to allow the new host to connect to the network with the least amount of latency?

router
switch
bridge
* repeater

42. Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?

coax cable
rollover cable
* crossover cable
straight-through cable

43. A simplified CAM table for Switch1 is shown in the exhibit. If host A sends a frame with a destination MAC address of 66C, how does the switch process this frame?

The switch drops the frame.
The switch sends the frame out port 3.
The switch sends the frame out ports 1, 2, and 4.
* The switch sends the frame out ports 2, 3, and 4.
The switch sends the frame out ports 1, 2, 3, and 4.

44. Which of the following increases the potential for a collision to occur?

the use of an active hub instead of an intelligent hub
the use of an intelligent hub instead of an active hub
a reduction in the number of devices attached to the hub
* an increase in the number of devices attached to the hub
2 points for Option 4

45. Refer to the exhibit. Host A has been added to the network. However, host A cannot communicate with the server B or the Internet. All cables have been tested and are functioning to standards. At which layer of the OSI model is this problem occurring?

Layer 1
Layer 2
* Layer 3
Layer 4

46. A workstation is browsing a web server. What will be the partial contents of the segment sent from the workstation to the web server?

* a

47. Refer to the exhibit. What is the purpose of the highlighted address?

* It allows the NIC to communicate with other devices on the same network.
It identifies which part of the IP address is to be considered the network portion.
It provides an address to which all packets that do not have a specific route are sent.
It uniquely identifies the NIC to the free token that is passed on the Ethernet network.

48. Refer to the exhibit. Host A is being manually configured for connectivity to the LAN. Which two addressing scheme combinations are possible configurations that can be applied to the host for connectivity? (Choose two.)

Address - 192.168.1.14 Gateway - 192.168.1.33
Address - 192.168.1.45 Gateway - 192.168.1.33
Address - 192.168.1.32 Gateway - 192.168.1.33
* Address - 192.168.1.82 Gateway - 192.168.1.65
Address - 192.168.1.63 Gateway - 192.168.1.65
* Address - 192.168.1.70 Gateway - 192.168.1.65

49. A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections?

application
* session
transport
network
data link

CCNA 1 Module 11 Exam

1 .Which port numbers are commonly assigned for FTP use? (Choose two.)

19
* 20
* 21
22

2 Which application layer protocol allows network devices to exchange management information?

SMTP
* SNMP
FTP
TFTP
EIGRP

3 FTP provides a reliable, connection-oriented service for transferring of files. Which transport layer protocol is used for data transfer when this service is being used?

TFTP
* TCP
DNS
IP
UDP

4 TCP is referred to as connection-oriented. What does this mean?

TCP uses only LAN connections.
TCP requires devices to be directly connected.
* TCP negotiates a session for data transfer between hosts.
TCP reassembles the data steams in the order that it is received.

5 What three pieces of information does the transport layer use to manage the communication of separate data streams between hosts? (Choose three.)

* port numbers
checksum values
authentication keys
* sequence numbers
encryption algorithms
* acknowledgment numbers

6 What does the http portion of the URL http://www.cisco.com/edu/ communicate to a web browser?

The web browser needs to locate the www server.
The address is located on a site whose name is http.
* The web browser is notified as to which protocol to use.
The http portion represents the type of web browser that needs to be used.

7 When the receiving workstation detects an error in the data it has received, it does not acknowledge receipt of the data. The source workstation retransmits the unacknowledged data. Which layer of the OSI model supports this process of retransmission?

network
application
session
* transport

8 What are the features of the User Datagram Protocol (UDP). (Choose three.)

* no guaranteed delivery of datagrams
connection-oriented
provides reliable full-duplex data transmission
*reliability provided by the application layer
* connectionless

utilizes sliding windowing techniques

9 Which Application layer protocol is widely used to support resolving host names to IP addresses?

FTP
SMTP
SNMP
* DNS
HTTP
WWW

10 What is the purpose of TCP/UDP port numbers?

indicate the beginning of a three-way handshake
reassemble the segments into the correct order
identify the number of data packets that may be sent without
acknowledgment
* track different conversations crossing the network at the same time

11 If an application uses a protocol that exchanges data without using windowing or flow control and must rely on higher layer protocols for reliability, which protocol and transfer methods are being used?

UDP, connection-oriented
* UDP, connectionless
TCP, connection-oriented
TCP, connectionless

12 Which protocol is used to transfer files from computer to computer but is considered connectionless?

FTP
* TFTP
SNMP
TCP
DHCP

13 Which layer of the OSI model can provide a connection-oriented, reliable data transfer between two hosts?

Application
Presentation
Session
* Transport

14 Which of the following are primary duties of the OSI transport layer? (Choose two.)

path determination
* end-to-end connectivity
* flow control
security control
data representation
encryption of data

15 Which protocol is used by e-mail servers to communicate with each other?

FTP
HTTP
TFTP
* SMTP
POP
SNMP

CCNA 1 Module 10 Exam

1 At which layer of the OSI model does the device reside that is functioning as the default gateway for hosts on a network?

Layer 1
Layer 2
* Layer 3
Layer 4
Layer 5
Layer 7

2 A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?

255.255.255.0
255.255.255.192
* 255.255.255.224
255.255.255.240
255.255.255.248

3 Refer to the exhibit. A network administrator is planning the addressing scheme for the LAN using 172.25.14.0/26. The hosts are to be assigned addresses 172.25.14.1 – 172.25.14.25. The LAN interface of the router is to be configured using 172.25.14.63 as the IP address. What would describe this addressing scheme?

The LAN is being addressed properly.
The subnet that is being assigned is not a usable subnet address.
* The router LAN interface is being assigned a broadcast address.
The subnet mask does not allow enough host addresses in a single subnet.

4 Refer to the exhibit. A student in the Cisco network class has designed a small office network to enable hosts to access the Internet. What recommendation should the teacher provide to the student in regards to the network design?

Replace the Layer 2 switch with a hub.
* Replace the Layer 2 switch with a router.
Replace the Layer 2 switch with a bridge.
Replace the Layer 2 switch with a transceiver.

5 Which type of routing allows routers to adapt to network changes?

static routes
* dynamic routing
only default routes
No routing is necessary.

6 Refer to the exhibit. Host A pings host B. When R4 accepts the ping into the Ethernet interface, what two pieces of header information are included? (Choose two.)

source IP address: 192.168.10.129
source IP address: BBBB.3333.5677
source MAC address: 5555.AAAA.6666
destination IP address: 192.168.10.33
* destination IP address: 192.168.10.134
* destination MAC address: 9999.DADC.1234

7 Given a host with the IP address 172.32.65.13 and a default subnet mask, to which network does the host belong?

172.32.65.0
172.32.65.32
* 172.32.0.0
172.32.32.0

8 What header address information does a router change in the information it receives from an attached Ethernet interface before information is transmitted out another interface?

only the Layer 2 source address
only the Layer 2 destination address
only the Layer 3 source address
only the Layer 3 destination address
* the Layer 2 source and destination address
the Layer 3 source and destination address

9 Host A is connected to the LAN, but it cannot connect to the Internet. The host configuration is shown in the exhibit. What are the two problems with this configuration? (Choose two.)

* The host subnet mask is incorrect.
The host is not configured for subnetting.
The default gateway is a network address.
* The default gateway is on a different network than the host.
The host IP address is on a different network from the Serial interface of the router.

10 Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network. By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the IP server properties to get connectivity to the network through the router?

IP address: 192.168.10.38 Subnet mask: 255.255.255.240 Default gateway: 92.168.10.39
IP address: 192.168.10.38 Subnet mask: 255.255.255.240 Default gateway: 92.168.10.33
* IP address: 192.168.10.38 Subnet mask: 255.255.255.248 Default gateway: 92.168.10.33
IP address: 192.168.10.39 Subnet mask: 255.255.255.248 Default gateway: 92.168.10.31
IP address: 192.168.10.254 Subnet mask: 255.255.255.0 Default gateway: 192.168.10.1

11 How does a router decide where the contents of a received frame should be forwarded?

* by matching destination IP addresses with networks in the routing table
by matching the destination IP address with IP addresses listed in the ARP table
by matching the destination MAC address with MAC addresses listed in the CAM table
by forwarding the frame to all interfaces except the interface on which the frame was received

12 Refer to the exhibit. A newly hired technician is testing the connectivity of all hosts by issuing a ping command. The technician notices that a default gateway is not configured on all the hosts, but all hosts have connectivity between hosts, a fact which seems to confuse the technician. How would you explain the connectivity to the technician?

The hosts are detecting the default gateway configured on the hub.
* The hosts are all in one LAN, so default gateway information is not needed.
The hosts in the network only require that one host has a gateway configured.
The hosts in the network would only need a gateway if a switch replaces the hub.
The hosts are using broadcast to reach each other since no gateway is configured.

13 What do switches and routers use to make forwarding decisions?

Switches and routers both use IP addresses.
Switches and routers use both MAC and IP addresses.
Switches use IP addresses. Routers use MAC addresses.
* Switches use MAC addresses. Routers use IP addresses.
use MAC and IP addresses. Routers use IP addresses.

14 Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?

The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
* The default gateway is on a different subnet from the host.

15 How does subnetting provide some level of security in a network?

The number of switches must increase.
The collisions prevent the copying of data.
* The broadcasts are contained within a subnet.
The number of host IP addresses is increased.

16 Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?

The subnet mask of host 2 is incorrect.
* Host 1 and host 2 are on different networks.
The switch needs an IP address that is not configured.
The router LAN interface and host 1 are on different networks.
The IP address of host 1 is on a different network than is the LAN interface of the router.

17 What is the purpose of a subnet mask in a network?

A subnet mask is not necessary when a default gateway is specified.
A subnet mask is required only when bits are borrowed on a network.
* A subnet mask is used to determine in which subnet an IP address belongs.
A subnet mask is used to separate the 48-bit address into the OUI and the vendor serial number.

18 Refer to the exhibit. A technician is planning an addressing scheme for a branch office as shown in the exhibit. What is the status of the intended network?

The configuration will work as planned.
The subnetwork mask of host A is incorrect.
The default gateway of host A is a network address.
* The addresses on the router LAN interfaces are on the same subnetwork.
The IP address of host A is on a different subnetwork than the subnetwork that the Ethernet router interface is on.

19 What is the primary purpose of the routing process?

to propagate broadcast messagesto map IP addresses
to MAC addresses
to switch traffic to all available interfaces
to map IP addresses to MAC addresses
* to find paths from one network or subnet to another

20 Which statements describe Layer 2 and Layer 3 packet address changes as the packet traverses from router to router? (Choose two.)

Layer 3 header is removed and replaced at every Layer 3 device.
Layer 2 and Layer 3 addresses do not change when the packet traverse.
* Layer 3 source and destination addresses do not change when the packet traverse.
* Layer 2 frame header and trailer are removed and replaced at every Layer 3 device.
Layer 2 source and destination addresses do not change when the packet travels.

21 Which type of routing uses manual entry of information and does not scale well in large internetworks?

interior
exterior
* static
dynamic

22 Company XYZ uses a network address of 192.168.4.0. It uses the mask of 255.255.255.224 to create subnets. What is the maximum number of usable hosts in each subnet?

6
14
* 30
62

23 A company is using a Class B IP addressing scheme and expects to need as many as 100 networks. What is the correct subnet mask to use with the network configuration?

255.255.0.0
255.255.240.0
* 255.255.254.0
255.255.255.0
255.255.255.128
255.255.255.192

24 Which device would add security to a network by not forwarding broadcasts?

hub
* router
switch
bridge
repeater

25 An IP network address has been subnetted so that every subnetwork has 14 usable host IP addresses. What is the appropriate subnet mask for the newly created subnetworks?

255.255.255.128
255.255.255.224
* 255.255.255.240
255.255.255.248
255.255.255.252

CCNA 1 Module 9/10 Exam

1 What is the primary responsibility of the transport layer?

allows access to the network media
provides data representation and encoding
selects paths through the network for data to travel
* defines end-to-end connectivity between host applications

2 Why is IP considered a best-effort protocol?

IP detects lost packets.
IP validates the content of the packets.
* IP does not provide acknowledgment of the data delivery
IP reorders the packet as they arrive at the destination host.

3 Which two statements correctly describe the IP address 127.0.0.1? (Choose two.)

* It belongs to the Class A range of addresses.
It belongs to the Class B range of addresses.
It belongs to the Class C range of addresses.
* It is reserved for loopback testing.
It is reserved for multicast group testing.
It is reserved for unicast testing.

4 [some graphics here: a white rectangle with some console dump]Refer to the exhibit. Which two statements are correct in reference to the output shown? (Choose two.)


The LAN segment is subnetted to allow 254 subnets.
The DNS server for this host is on the same subnet as the host.
The host automatically obtained the IP addresses 192.168.1.100.
* The host received the IP address from the router on the local LAN segment.
* The host is assigned an address of 00-50-8D-F1-EA-8D by the administrator.

5 Which three addresses are considered to be private addresses? (Choose three.)

* 10.45.09.23
15.87.234.87
172.32.45.90
* 172.17.78.98
192.169.89.56
* 192.168.45.23

6 What is the purpose of a DHCP server on a network?

to resolve MAC addresses
to IP addressesto resolve IP addresses
to MAC addressesto resolve host names to IP addresses
* to assign IP addresses dynamically to hosts
to assign a MAC address to a host

7 Refer to the exhibit. The small office LAN shown in the exhibit may eventually be connected to the Internet. According to Cisco best practice, which IP network addresses should be used?

12.0.0.0
172.0.0.0
172.168.0.0
192.32.17.0
* 192.168.67.0
225.1.5.0

8 Refer to the exhibit. Which devices are recommended to have the IP addresses manually configured?

PC1 and PC2
* all servers
only PC2 Laptop
all hosts and all servers

9 Refer to the exhibit. Based on the information shown, which two statements are true? (Choose two.)

An ARP request must be used to obtain an address that is placed in the ARP table.
Frames from other hosts in the network to this host will use a destination address of 00-06-25-25-6e-5d.
The only remote locations that can be reached from this host are 192.168.1.97 and 192.168.1.254.
* If a packet is sent to a network device other than 192.168.1.97 and 192.168.1.254, an ARP request must be used.
* If the computer with the IP address of 192.168.1.94 sends a packet to the device with the IP address 192.168.1.97, no ARP request is required.

10 Which TCP/IP model layer supports both LAN and WAN technologies?

* network access layer
internet layer
transport layer
application layer

11 Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?

255.255.0.0
* 255.255.255.0
255.255.254.0
255.255.248.0

12 Refer to the exhibit. Host A pings host B. When R4 accepts the ping into the Ethernet interface, what two pieces of header information are included? (Choose two.)

source IP address: 192.168.10.129
source IP address: BBBB.3333.
MAC address: 5555.AAAA.6666
destination IP address: 192.168.10.33
* destination IP address: 192.168.10.134
* destination MAC address: 9999.DADC.1234


13 What header address information does a router change in the information it receives from an attached Ethernet interface before information is transmitted out another interface?

only the Layer 2 source address
only the Layer 2 destination address
only the Layer 3 source address
only the Layer 3 destination address
* the Layer 2 source and destination address
the Layer 3 source and destination address

14 Host A is connected to the LAN, but it cannot connect to the Internet. The host configuration is shown in the exhibit. What are the two problems with this configuration? (Choose two.)

* The host subnet mask is incorrect.
The host is not configured for subnetting.
The default gateway is a network address.
* The default gateway is on a different network than the host.
The host IP address is on a different network from the Serial interface of the router.

15 An IP network address has been subnetted so that every subnetwork has 14 usable host IP addresses. What is the appropriate subnet mask for the newly created subnetworks?

255.255.255.128
255.255.255.224
* 255.255.255.240
255.255.255.248
255.255.255.252

16 A company is using a Class B IP addressing scheme and expects to need as many as 100 networks. What is the correct subnet mask to use with the network configuration?

255.255.0.0
255.255.240.0
* 255.255.254.0
255.255.255.0
255.255.255.128
255.255.255.192

17 Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network. By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the IP server properties to get connectivity to the network through the router?

IP address: 192.168.10.38 Subnet mask: 255.255.255.240 Default gateway: 192.168.10.39
IP address: 192.168.10.38 Subnet mask: 255.255.255.240 Default gateway: 192.168.10.33
* IP address: 192.168.10.38 Subnet mask: 255.255.255.248 Default gateway: 192.168.10.33
IP address: 192.168.10.39 Subnet mask: 255.255.255.248 Default gateway: 192.168.10.31
IP address: 192.168.10.254 Subnet mask: 255.255.255.0 Default gateway: 192.168.10.1


18 Refer to the exhibit. A technician is planning an addressing scheme for a branch office as shown in the exhibit. What is the status of the intended network?

The configuration will work as planned.
The subnetwork mask of host A is incorrect.
The default gateway of host A is a network address.
* The addresses on the router LAN interfaces are on the same subnetwork.
The IP address of host A is on a different subnetwork than the subnetwork that the Ethernet router interface is on.

19 Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?

The subnet mask of host 2 is incorrect.
* Host 1 and host 2 are on different networks.
The switch needs an IP address that is not configured.
The router LAN interface and host 1 are on different networks.
The IP address of host 1 is on a different network than is the LAN interface of the router.

20 Refer to the exhibit. A network administrator is planning the addressing scheme for the LAN using 172.25.14.0/26. The hosts are to be assigned addresses 172.25.14.1 – 172.25.14.25. The LAN interface of the router is to be configured using 172.25.14.63 as the IP address. What would describe this addressing scheme?

The LAN is being addressed properly.
The subnet that is being assigned is not a usable subnet address.
* The router LAN interface is being assigned a broadcast address.
The subnet mask does not allow enough host addresses in a single subnet.

21 Which type of routing allows routers to adapt to network changes?static routes

static routes
* dynamic routing
only default routes
No routing is necessary.

22 How does a router decide where the contents of a received frame should be forwarded?

* by matching destination IP addresses with networks in the routing table
by matching the destination IP address with IP addresses listed in the ARP table
by matching the destination MAC address with MAC addresses listed in the CAM table
by forwarding the frame to all interfaces except the interface on which the frame was received

23 What do switches and routers use to make forwarding decisions?

Switches and routers both use IP addresses.
Switches and routers use both MAC and IP addresses.
Switches use IP addresses. Routers use MAC addresses.
* Switches use MAC addresses. Routers use IP addresses.
Switches use MAC and IP addresses. Routers use IP addresses.

24 Refer to the exhibit. A newly hired technician is testing the connectivity of all hosts by issuing a ping command. The technician notices that a default gateway is not configured on all the hosts, but all hosts have connectivity between hosts, a fact which seems to confuse the technician. How would you explain the connectivity to the technician?

The hosts are detecting the default gateway configured on the hub.
* The hosts are all in one LAN, so default gateway information is not needed
The hosts in the network only require that one host has a gateway configured.
The hosts in the network would only need a gateway if a switch replaces the hub.
The hosts are using broadcast to reach each other since no gateway is configured.

25 Given a host with the IP address 172.32.65.13 and a default subnet mask, to which network does the host belong?

172.32.65.0
172.32.65.32
* 172.32.0.0
172.32.32.0

CCNA 1 Module 8 Exam

1. What is characteristic of the operation of a Layer 2 switch?

*uses the destination MAC address to determine the specific interface to forward a frame

2 Two newly hired technicians are discussing the implementation of a new LAN. One technician proposes installing a hub. The other technician advises installing a switch. Which statements are true about the differences between a hub and a switch? (Choose two.)

*A switch provides more throughput to hosts on a LAN
*A switch provides a collision-free environment on a LAN.

3. Refer to the exhibit. Forty-eight workstations are connected to a hub. The users are able to connect to the network, but access is very slow. An entry-level technician replaces the 10 Mbps hub with 100 Mbps hub but the problem still exists. What is the most economical way to correct the problem?

*Replace the hub with a switch.

4. Exhibited is a portion of ABC Company internetwork. Which of the connections can be full duplex?

*segments 2, 3, and 4

5 Refer to the exhibit. The switch and the hub have default configurations, and the switch has built its CAM table. Which of the hosts will receive the data when workstation A sends a unicast packet to workstation C?

*workstation C

6 An administrator would like to connect ten workstations on a 192.168.0.0/24 network. The device selected by the administrator must allow connectivity between hosts without sharing bandwidth. Which device would be appropriate?

*switch

7 Which networking devices use the MAC address to make forwarding decisions? (Choose two.)

*bridge
*switch

8 Which devices are primarily used to extend cable segments within a collision domain by regenerating the data signals? (Choose two.)

*repeater
*hub

9 Which devices will create multiple collision domains in an Ethernet network? (Choose two.)

*switch
*router

10 Refer to the exhibit. How many broadcast domains exist in classroom 240?

*1

11 A PC receives a frame. Which situation will cause the NIC on the receiving host to pass the frame contents up the OSI layers to be processed by the PC?

*The destination MAC address of the frame is FFFF.FFFF.FFFF.

12 A network administrator has a multi-floor LAN to monitor and maintain. Through careful monitoring, the administrator has noticed a large amount of broadcast traffic slowing the network. Which device would you use to best solve this problem?

*router

13 What will a bridge do if it receives a frame with a MAC address that is not within the table?

*send frame to all ports except source port

14 Which networking device reduces the size of both collision domains and broadcast domains?

*router

15 What is used to prevent Layer 2 switching loops?

*Spanning-Tree Protocol

CCNA 1 Module 7 Exam

1 Which Ethernet standard does the IEEE 802.3 standard recommend for backbone installations?

*1000BASE-LX

2 Which statements describe Gigabit Ethernet technology? (Choose two.)

*typically used for backbone cabling
*can be implemented over copper and fiber

3 Which of the following are Fast Ethernet technologies? (Choose two.)

*100BASE-FX
*100BASE-TX

4 To make sure timing limitations are not violated when implementing a 10 Mbps Ethernet network involving hubs or repeaters, a technician should adhere to which rule?

*the 5-4-3 rule

5 At which OSI layer do the differences between standard Ethernet, Fast Ethernet and Gigabit Ethernet occur?

*physical layer

6 How does 1000BASE-T use the UTP wire pairs to accomplish transmission?

*all four pairs are used in parallel by both hosts to transmit and receive
simultaneously

7 What RJ-45 pins are unused when transmitting and receiving data in an Ethernet 100BASE-T Category 5 UTP cable? (Choose two.)

*4 and 5
*7 and 8

8 What is the maximum distance that 10BASE-T will transmit data before signal attenuation affects the data delivery?

*100 meters

9 Which media types can be used in an implementation of a 10BASE-T network? (Choose three.)

*Category 5 UTP
*Category 5e UTP
*Category 3 UTP

10 Which of the following Ethernet technologies are considered legacy Ethernet? (Choose three.)

*10BASE2
10BASE5
*10BASE-T

CCNA 1 Module 6 Exam

1 Refer to the exhibit. Host A is communicating with host F. What happens to a frame sent from host A to host F as it travels over the Ethernet segments?

*The frame format remains the same across each Ethernet segment.

2 How many hexadecimal digits are in a MAC address?

*12

3 What are three functions of a NIC in a PC? (Choose three.)

*A NIC connects the PC to the network media.
*A NIC detects collisions on the Ethernet segment.
*A NIC passes the contents of selected frames to the upper OSI layers.

4 At what layer of the OSI model does a MAC address reside?

*2

5 A router has an Ethernet, Token Ring, serial, and ISDN interface. Which interfaces will have a MAC address?

*Ethernet and Token Ring interfaces

6 In an Ethernet LAN, how does the NIC know when it can transmit data?

*An Ethernet NIC transmits data after listening for the absence of a signal on the media.

7 Which characteristics describe carrier sense multiple access collision detect (CSMA/CD)? (Choose three.)

*nondeterministic
*collision environment
*first-come, first-served approach

8 Which two devices can provide full-duplex Ethernet connections? (Choose two.)

*NIC
*Layer 2 switch

9 On a local area network, one workstation can send data on the line while it is receiving data. What type of data transfer does this describe?

*full duplex

10 Refer to the exhibit. The small office network shown in the exhibit consists of four computers connected through a hub. Which configuration would cause collisions and errors on the network?

*administratively configured full duplex

11 Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?

*No collisions will occur on this link

12. Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the same time. How do the hosts respond on the network? (Choose two.)

*After the end of the jam signal, Hosts 1, 2, 3, and 4 invoke a backoff algorithm.
*If a host has data to transmit after the backoff period of that host, the host checks to determine if the line is idle, before transmitting.

13. When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?

*The hosts return to a listen-before-transmit mode.

14 Which statement describes how CSMA/CD on an Ethernet segment manages the retransmission of frames after a collision occurs?

*The devices transmitting when the collision occurs DO NOT have priority for retransmission.

15 Refer to the exhibit. A technician wants to increase the available bandwidth for the workstation by allowing the switch and the NIC on the workstation to transmit and receive simultaneously. What will permit this?

*full-duplex

16 Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?

*A random delay helps prevent the stations from experiencing another collision during the transmission.

17 In which two layers of the OSI model does Ethernet function? (Choose two.)

*data link
*physical

18 Which of the following are specified by IEEE standards as sublayers of the OSI data link layer? (Choose two.)

*Logical Link Control
*Media Access Control

19 Where does the MAC address originate?
*burned into ROM on the NIC card

CCNA 1 Module 5 Exam

1 Refer to the exhibit. What is the appropriate cable to use at each of the numbered network connections?

1-crossover; 2-straight-through; 3-crossover; 4-straight-through
1-straight-through; 2-crossover; 3-straight-through; 4-straight-through
1-straight-through; 2-crossover; 3-crossover; 4-straight-through
*1-rollover; 2-crossover; 3-straight-through; 4-straight-through
1-rollover; 2-straight-through; 3-straight-through; 4-straight-through

2 Which two devices are considered OSI Layer 1 devices? (Choose two.)

*hubs
routers
bridges
switches
*repeaters

3 What device is used to connect hosts to an Ethernet LAN and requires a straight-through UTP cable between the hosts and this device?

NIC
router
*switch
server

4 What is the most common type of cabling used in LANs?

STP
*UTP
coax
fiber

5 In which situations would a crossover cable be used to connect devices in a network? (Choose two.)

switch to PC
*switch to hub
switch to router
switch to server
*switch to switch

6 Refer to the exhibit. How many collision domains exist in the network?

1
*2
4
7
8

7 What type of cable would be used to make the connection between the console port of a router and a workstation?

crossover
*rollover
straight-through
patch

8 Which function is a unique responsibility of the DCE devices shown in the exhibit?

transmission of data
reception of data
*clocking for the synchronous link
noise cancellation in transmitted data

9 Which address does a bridge use to make filtering and switching decisions?

source MAC
source IP
*destination MAC
destination IP
network IP address

10 What is characteristic of the operation of a hub?

selectively drops packets that represent potential security risks
*forwards a frame out all interfaces except the inbound interface
based on IP address, dynamically learns the interfaces to which all devices are attached
upon power on, queries the devices on all interface to learn the MAC addresses of the attached devices
transmits a frame to the specific interface to which the device with the MAC destination address is attached

11 Users with systems that are attached to a hub are complaining about poor response time. What device could replace the hub and provide immediate response time improvement?

router
*switch
bridge
repeater

12 Which of the following are benefits of peer-to-peer networks? (Choose three.)

centralized security
*easy to create
very scalable
*no centralized equipment required
*centralized administrator not required
centralized control of assets

13 Which statement is accurate about a WAN link?

*The link transmits data serially.
The link uses a maximum distance of 100 meters.
The link uses the same transmission rate as all other WAN links use.
The link uses the same standardized connector style that is used for all WAN technologies.

14 Which items in the exhibit are DTE devices?

A and B
B and C
C and D
*A and D
A, B, C, and D

15 At which layer of the OSI model does the MAC address of a NIC reside?

physical
application
network
transport
*data linksession

16 Refer to the exhibit. A technician measured the lengths of the CAT 5e structured cable runs in the exhibit. How should the technician evaluate the cabling shown in the diagram to the network administrator?

All cabling to work areas are within specifications.
Station A and B may experience intermittent problems because the length exceeds the recommended standard.
*Station B may experience intermittent problems because the length exceeds the recommended standard.
Station C may experience intermittent network connectivity because the length is less than the recommended standard.
Station A and B will have intermittent problems because the length exceeds the recommended standard.
Station C will not have network connectivity because the length is less than the recommended standard

17 Which statement describes a typical use of Gigabit Ethernet?

to provide high-speed desktop connectivity for average users
to provide connectivity to low to medium volume applications
to provide medium volume connectivity to workgroup servers
*to provide high-speed connectivity for backbones and cross connects

18 The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown?

crossover
rollover
reversed-pair
*straight-through
split-pair
console

19 The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown?

console
*crossover
rollover
reversed-pair
split-pair
straight-through

20 Which of the following are benefits of a wireless network? (Choose two.)

higher data speeds
better security
*mobilityless
expensive NIC cards
*no need to run cables to hosts

CCNA 1 Module 4 Exam

1 A company needs to extend the LAN to six separate buildings. To limit the amount of signal attenuation on the LAN media, what type of media would be the best to use between the buildings?

air (wireless)
coaxial cable
*fiber
shielded twisted pair
unshielded twisted pair

2 Which of the following are detected by the wire map test? (Choose three.)near-end crosstalk (NEXT)

*opens
propagation delay
return loss
*reversed-pair faults
*short circuits

3 What is a cause of crosstalk in UTP cable?

cable pairs that are shorted
cable pairs crossed during termination
cabling runs installed in separate conduit
*cable pairs that are untwisted because of poor termination of the cable

4 A small company is experiencing difficulties on its LAN. After performing some tests, a technician has determined that the copper media supporting the LAN is experiencing abnormal attenuation. What are two possible causes of the problem? (Choose two.)

*defective connectors
*excessively long cable lengths
use of higher grade cabling
low frequency signals used in the media
network cable runs isolated from other cables

5 How are binary ones and zeros represented in fiber optic installations? (Choose two.)

+5 volts/-5 volts
0 volts/5 volts
*light/no light
high to low electrical transition
low to high electrical transition
*increasing/decreasing light intensity

6 What factors need to be considered to limit the amount of signal attenuation in Ethernet cable runs? (Choose two.)

type of users
number of users
*length of cable
type of electrical equipment
*installation of connectors on the cable

7 To ensure reliable LAN communications, what should a technician be looking for when attaching connectors to the ends of UTP cable?

that the white-orange/orange pair is attached first
*that the wire pairs remain twisted as much as possible
that one end of the shield is properly ground but not the other
that 50 ohm termination resistors are on both ends

8 Which of the following describes frequency?

length of each wave
height of each wave
*number of cycles each second
amount of time between each wave

9 What conditions are described when transmission signals from one wire pair affects another wire pair? (Choose two.)

*noise
resistance mismatch
jitter
*crosstalk
attenuation

10 What is expected when crosstalk is present in networks with higher transmission frequencies? (Choose two.)

jitter
*increase in crosstalk
higher signal attenuation
increases in cancellation effect
*destruction of more of the data signal

CCNA 1 Module 3 Exam

1 What are two advantages of using UTP cable in a networking environment? (Choose two.)

is stiffer than STP
*is less expensive than fiber
*is easier to install than coaxial
provides longer distances than coaxial provides
is less susceptible to outside noise sources than fiber is

2 What are two advantages of using fiber-optic cabling instead of UTP? (Choose two.)lower cost

easer to install
*allows longer distances
*less effected by external signals
easier to terminate the cable ends

3 What is the difference between a wireless NIC and an Ethernet NIC?

The Ethernet NIC operates at 100 Mbps, whereas a wireless NIC operates at 10 Mbps.
The Ethernet NIC uses a PCI expansion slot, and a wireless NIC cannot use an expansion slot.
The wireless NIC uses CSMA/CA, whereas a Ethernet NIC uses token passing as an access method.
*The wireless NIC associates to an access point, and an Ethernet NIC attaches to a hub or switch using a cable.
The Ethernet NIC attaches to a hub or a switch using only fiber cabling, and a wireless NIC attaches to a wireless antenna using air as a network medium.

4 Refer to the exhibit. The JacksCo is a small start-up company that took over an office space from another small company that closed. The older company left a room of network equipment behind. An inventory list is shown. As the newly hired network technician, you have been asked to determine which components in the storeroom would be best to use to install a small wireless LAN that currently only needs the employees to be able to share data. Note that the wireless LAN also needs to connect to an existing wired LAN. Which components should you choose?

access point and wireless NICs
*wireless NICs, access point, straight-through cables, and a switch
hub, wireless NICs, two wireless bridges, crossover cables, and an access point
wireless NICs, Ethernet NICs, a switch, an external modem, two wireless bridges
Ethernet NICs, wireless NICs, switch, hub, two wireless bridges, straight-through cables, crossover cables, and a router

5 A company is converting a cabled LAN to a wireless Ethernet LAN. What must be changed on every host on the network?

No changes are required.
Each host will require a new IP address.
*Each host will require an appropriate NIC or adapter.
Each host will require that the operating system be upgraded.

6 Refer to the exhibit. Which answer correctly identifies the pinout of the UTP cables labeled Cable A, Cable B, and Cable C?

A=straight, B=rollover, C=crossover
A=rollover, B=crossover, C=straight
A=crossover, B=straight, C=straight
*A=crossover, B=straight, C=rollover
A=straight, B=crossover, C=rollover
A=rollover, B=straight, C=crossover

7 What factors should be considered when selecting the appropriate cable for connecting a PC to a network? (Choose two.)

type of system bus
motherboard model
*distance of cable run
*speed of transmission
computer manufacturer

8 Select the characteristics specified by 10BaseT. (Choose three.)

*twisted pair cable
T style connectors
*baseband transmission
10 gigabits per second data rate
*10 megabits per second data rate
decimal encoded data transmission

9 When is a straight-through cable used in a network?

when configuring a router
when connecting a host to a host
*when connecting a switch to a router
when connecting one switch to another switch

10 What type of cable is used to make an Ethernet connection between a host and a LAN switch?
console
rollover
crossover
*straight-through

11 Which of the following are used for data communication signals? (Choose three.)

*light patterns
*electrical voltages
controlled air pulses
mixed media impulses
magnetized fluid wave
*modulated electromagnetic waves

12 What does UTP cable rely on to reduce signal degradation caused by EMI and RFI?

shielding
magnetism
*cancellation
insulation
properly grounded connections
RJ-45 connectors

13 Refer to the exhibit. What type of cable connects the two routers together without any intermediary device?

console
rollover
*crossover
straight-through

14 Which Ethernet implementation requires the signal on the media to be boosted at a maximum distance of 100 meters?

10BASE2
10BASE5
*100BASE-T
100BASE-FX
1000BASE-CX

15 Which cable connectors are used to connect a cable from a router's console port to a PC? (Choose two.)

RJ-11
RJ-12
*RJ-45
DB-8
*DB-9
DB-10

CCNA 1 Module 2 Exam

1. What makes it easier for different networking vendors to design software and hardware that will interoperate?

*OSI model
proprietary designs
IP addressing scheme
standard logical topologies
standard physical topologies

2. Refer to the exhibit. Identify the devices labeled A, B, C, and D in the network physical documentation.

A=bridge, B=switch, C=router, D=hub
*A=bridge, B=hub, C=router, D=switch
A=bridge, B=router, C=hub, D=switch
A=hub, B=bridge, C=router, D=switch

3. Refer to the exhibit. Which column shows the correct sequence of OSI model layers?

A
B
C
*D

4. Which two features apply to WAN connections? (Choose two.)

*operate using serial interfaces
make network connection using a hub
limited to operation over small geographic areas
typically operate under local administrative control
*provide lower bandwidth services compared to LANs

5. Which layer of the OSI model provides network services to processes in electronic mail and file transfer programs?

data link
transport
network
*application

6. Which of the following are ways that bandwidth is commonly measured? (Choose three.)

GHzps
*kbps
*Mbps
Nbps
MHzps
*Gbps

7. Which of the following are factors that determine throughput? (Choose two.)

types of passwords used on servers
type of Layer 3 protocol used
*network topology
width of the network cable
*number of users on the network

8. Which term describes the process of adding headers to data as it moves down OSI layers?]

divisionen
codings
eparation
segmentation
*encapsulation

9. Which best describes the function of the physical layer?

*Defines the electrical and functional specifications for the link between end systems.
Provides reliable transit of data across a physical link.
Provides connectivity and path selection between two end systems.
Concerned with physical addressing, network topology and media access.

10. Refer to the following list. Choose the correct order of data encapsulation when a device sends information.

segments
bits
packets
data
frames

1 - 3 - 5 - 4 - 2
2 - 1 - 3 - 5 - 4
2 - 4 - 3 - 5 - 1
4 - 3 - 1 - 2 - 5
* 4 - 1 - 3 - 5 - 2
3 - 5 - 1 - 2 - 4

11. The central hub has malfunctioned in the network. As a result, the entire network is down. Which type of physical network topology is implemented?

bus
*star
ring
mesh

12 What is the term used to describe the transport layer protocol data unit?

bits
packets
*segments
frames
data streams

13 Which three features apply to LAN connections? (Choose three.)

operate using serial interfaces
*make network connection using a hub
*limited to operation over small geographic areas
provide part-time connectivity to remote services
*typically operate under local administrative control
provide lower bandwidth services compared to WANs

14 A switch has failed in the network. As a result, only one segment of the network is down. Which type of physical network topology is implemented?

bus
ring
star
*extended star

15 Which layer of the OSI model provides connectivity and path selection between two end systems where routing occurs?

physical layer
data link layer
*network layer
transport layer

16 What is one advantage of defining network communication by the seven layers of the OSI model?

It increases the bandwidth of a network.
*It makes networking easier to learn and understand.
It eliminates many protocol restrictions.
It increases the throughput of a network.
It reduces the need for testing network connectivity.

17 Which of the following are layers of the TCP/IP model? (Choose three.)

*Application
Physical
*Internet
*Network Access
Presentation

18 Which of the following are data link layer encapsulation details? (Choose two.)

*A header and trailer are added.
Data is converted into packets.
*Packets are packaged into frames.
Frames are divided into segments.
Packets are changed into bits for Internet travel.

CCNA 1 Final Exam (Option 1)

CCNA 3.1 Semester 1 Final Exam Result Correct 100% (Option 1)

1. Which devices will create multiple collision domains in an Ethernet network? (Choose two.)
*Switch
*router

2. How many collision domains are shown in the diagram?
*Seven

3. Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions?
*segments 3, 4, and 5

4. Refer to the exhibit. Which diagram represents the network topology that an administrator would prefer, and why would the administrator prefer it?
*Diagram A. It will better provide available bandwidth to the hosts.

5. After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring?
*Physical

6. Refer to the exhibit. How many broadcast domains are shown?
*Three

7. Refer to the exhibit. A network associate needs to establish an Ethernet connection between Host A and Host B. However, the distance between the two hosts is further than the cabling standards allow. Which two devices that operate at the physical layer of the OSI can be used to allow Host A and Host B to communicate? (Choose two.)
*hub
*repeater

8. Refer to the exhibit. What must be configured on Host B to allow it to communicate with the file server? (Choose three.)
*a unique host IP address
*the subnet mask for the LAN
*the default gateway address

9. Refer to the exhibit. Host A pings Host B. What can be concluded about the source and destination addresses contained in the communication sent by Router R5 when it forwards the ping out the Ethernet interface to Host B? (Choose two.)
*source MAC address: 5555.AAAA.6666
*destination IP address: 192.168.10.134

10. What is the correct number of usable subnetworks and hosts for the IP network address 192.168.35.0 subnetted with a /28 mask?
*14 networks / 14 hosts

11. Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses?*255.255.255.252

12. Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A?
*IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17

13. Two peer hosts are exchanging data using TFTP. During the current session, a datagram fails to arrive at the destination. Which statement is true regarding the retransmission of the datagram?
*Datagram retransmission is controlled by the application.

14. Which protocols are TCP/IP application layer protocols? (Choose two.)
*TFTP
*DNS

15. When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network?
*1 and 2; 3 and 6

16. In the exhibit, the connections between the devices are labeled A, B, C, D, and E. For each connection, what is the correct UTP cable to use?
*A=rollover, B=straight, C=straight, D=crossover, E=crossover

17. Which cable diagram displays the end to end pinout for a crossover cable used with Cisco devices?
*Cable C

18. Which subnet masks could be used when subnetting a Class B IP address? (Choose two.)
*255.255.255.240
*255.255.192.0

19. Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work
*Star

20. A computer technician is asked to make a network cable. One end of the cable is pinned as a 568A and the other as a 568B. For what purposes can this cable be used? (Choose two.)
*to connect a switch to a switch
*to connect a hub to a switch

21. Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication?
*00-08-A3-B6-CE-02

22. Refer to the exhibit. A network administrator has configured a network after subnetting the network number 192.168.0.0/28. Workstation 1 is not able to communicate with Workstation 2. What is the cause of this loss in communications?
*Workstation 1 is not on the same network that the Router 1 LAN interface is on.

23. Which network device creates the highest amount of latency?
*Router

24. An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host?
*The host discards the frame.

25. A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections?
*Session

26. A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data?
*100 Mbps

27. Based on the graphic above, which of the following occurs as each host system comes on line in the topology?
*The switch adds MAC address to the bridge table as each host sends a frame.

28. Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out?
*Network

29. Why would a company install a switch instead of a hub when building or expanding a corporate network?
*A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port.

30. Refer to the exhibit. The hub and the switch are operating using factory default settings. Which hosts will receive the frame if host A transmits a broadcast frame?
*Workstations B, C, D, E, and the router will receive the data.

31. Refer to the exhibit. What kind of Ethernet cable is represented?
*straight-through cable

32. The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test?
*Layers 1, 2 and 3

33. A technician is testing connectivity between the devices using the ping command. Pings between Host B and Host A were successful. The technician could not ping the R3 address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed in the exhibit. What is the most likely problem?
*The default gateway of Host A is incorrect.

34. Why do vendors utilize the OSI model when designing networking products?
*It ensures greater compatibility and interoperability with equipment from different vendors.

35. A router determines the path to deliver a packet. What layer of the OSI model does this fact represent?
*Network

36. How does a switch learn the addresses of hosts connected to its ports?
*The switch reads the source MAC address on incoming frames and records it in CAM.

37. Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate LAN links? (Choose two.)
*link A
*link E

38. A large company has a network that is constantly changing. The routing tables in the routers need to be adjusted to reflect the changes in the routing paths. What type of routing would the network administrator implement?
*dynamic routing protocols

39. A network administrator has added a new switch to the network. The new switch connects to an existing switch that is already installed. Which UTP cable correctly connects the new switch to the existing switch?
*crossover

40. Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables?
*The cable in Graphic A will produce more crosstalk.

41. Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model?
*bits, frames, packets, segments, data

42. Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1?
*straight-through

43. Which technologies are considered to be LAN technologies? (Choose two.)
*Token Ring
*Ethernet

44. Refer to the topology in the graphic. Which characteristic does this type of topology possess?
*Communication continues in the event of a break in any one connection.

45. Which characteristics are common to both UDP and TCP? (Choose two.)
*uses port numbers
*classified as a transport layer protocol

46. A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
*172.16.192.160

47. Which type of address is 192.168.170.112/28?
*subnetwork address

48. What is the decimal representation of the binary number 11111000?
*248

49. What are important characteristics to consider when purchasing a network interface card? (Choose two.)
*media used on the network system
*bus used on the computer

50. Which of the following statements are correct about CSMA/CD? (Choose three.)
*It is a media access method used in LANs.
*When a device needs to transmit, it checks to see if the media is available.
*Only one device can successfully transmit at a time.

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