CCNA 1 Final Exam Answers 2011

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1 . Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two.)
Router(config)# line vty 0 3
Router(config-line)# password c13c0
Router(config-line)# login
The entries specify three Telnet lines for remote access.
The entries specify four Telnet lines for remote access.
The entries set the console and Telnet password to "c13c0".
Telnet access will be denied because the Telnet configuration is incomplete.
Access will be permitted for Telnet using "c13c0" as the password.

2 . Which two actions could be taken by a router if a specific match is not made to a route in the routing table? (Choose two.)
The packet will be discarded.
The packet will be sent back to the source.
The packet will be flooded out all interfaces.
Neighboring routers are polled to find the best path.
The packet will be forwarded to a default route if one is present.

3 .

Refer to the exhibit. The network administrator remotely accesses the CLI of RouterB from PC1 using a secure connection. Which statement is true about this connection?
The Telnet server process is running on PC1.
Only the exchange of the Telnet username and password is encrypted.
The GET request is sent to RouterA to retrieve data.
The SSH service is used to connect PC1 to RouterB.

CCNA1 2010 Final (Full text and images)

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CCNA 1 Final Exam 2010

1.

Refer to the exhibit. What is the correct destination socket number for a web page request from Host A to the web server?
00-08-a3-b6-ce-46
198.133.219.25:80

C 198.133.219.0/24 is directly connected, FastEthernet0/0

2. Which prompt represents the appropriate mode used for the copy running-config startup-config command ?
Switch-6J>
Switch-6J#
Switch-6J(config)#
Switch-6J(config-if)#
Switch-6J(config-line)#


3. Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two)
Router(config)# line vty 0 3 Router(config-line)# password c13c0
Router(config-line)# login
The entries specify three Telnet lines for remote access.
The entries specify four Telnet lines for remote access.
The entries set the console and Telnet password to “c13c0″.
Telnet access will be denied because the Telnet configuration is incomplete.
Access will be permitted for Telnet using “c13c0″ as the password.

All Answer CCNA1, CCNA2, CCNA3, CCNA4, CCNA Final

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CCNA Semester 1 chapter 11

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CCNA Semester 1 chapter 1

This is CCNA Semester 1 chapter 1

1. Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?
RAM
* CPU
video card
sound card
operating system

2. What are two advantages of purchasing a preassembled computer? (Choose two..
* usually a lower cost
exact components may be specified
extended waiting period for assembly
* adequate for performing most general applications
suited for customers with special needs

3. A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?
* RAM
NIC
video card
sound card
storage device

Cisco Training Ccna Ip Addressing - Part 1 Of 5

CCNA1 Chapter 8 (new)

1 Which type of cable run is most often associated with fiber-optic cable?

**backbone cable
horizontal cable
patch cable
work area cable

2 In most business LANs, which connector is used with twisted-pair networking cable?

BNC
RJ-11
**RJ-45
Type F

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

when connecting a router through the console port
when connecting one switch to another switch
**when connecting a host to a switch
when connecting a router to another router

4 With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?

**the magnetic field around the adjacent pairs of wire
the use of braided wire to shield the adjacent wire pairs
the reflection of the electrical wave back from the far end of the cable
the collision caused by two nodes trying to use the media simultaneously

5 Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?

Presentation
Transport
Data Link
**Physical

6 An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?

light injector
**OTDR
TDR
multimeter

7 XYZ Company is installing new cable runs on their data network. What two types of cable would most commonly be used for new runs? (Choose two.)

coax
Cat4 UTP
**Cat5 UTP
**Cat6 UTP
STP

8 What is a possible effect of improperly applying a connector to a network cable?

Data will be forwarded to the wrong node.
**Data transmitted through that cable may experience signal loss.
An improper signaling method will be implemented for data transmitted on that cable.
The encoding method for data sent on that cable will change to compensate for the improper connection.

9 What are three measures of data transfer? (Choose three.)

**goodput
frequency
amplitude
**throughput
crosstalk
**bandwidth

10

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

11 In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?

coax
**fiber
Cat5e UTP
Cat6 UTP
STP

12 Which fiber connector supports full duplex Ethernet?

13 Which method of signal transmission uses radio waves to carry signals?

electrical
optical
**wireless
acoustic

14 Which characteristics describe fiber optic cable? (Choose two.)

**It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
**It is the most expensive type of LAN cabling.

15 Which of the following is a characteristic of single-mode fiber-optic cable?

generally uses LEDs as the light source
relatively larger core with multiple light paths
less expensive than multimode
**generally uses lasers as the light source

16 What is considered a benefit of wireless as a media choice?

**more host mobility
lower security risks
reduced susceptibility to interference
less impact of the surroundings on the effective coverage area

17 What characteristic of UTP cable helps reduce the effects of interference?

the metal braiding in the shielding
the reflective cladding around core
**the twisting of the wires in the cable
the insulating material in the outer jacket

18 What is a primary role of the Physical layer in transmitting data on the network?

**create the signals that represent the bits in each frame on to the media
provide physical addressing to the devices
determine the path packets take through the network
control data access to the media

CCNA1 Chapter 7

1 Which options are properties of contention-based media access for a shared media? (Choose three.)

**non-deterministic
**less overhead
one station transmits at a time
**collisions exist
devices must wait their turn
token passing

2 What is a primary purpose of encapsulating packets into frames?

provide routes across the internetwork
format the data for presentation to the user
**facilitate the entry and exit of data on media
identify the services to which transported data is associated

3



Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?

1
2
4
**8
16

4 What is true concerning physical and logical topologies?

The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
**Logical topologies consist of virtual connections between nodes.

5



Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for http://www.server?

00-1c-41-ab-c0-00
**00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af

6 What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)

**They are 48 binary bits in length.
**They are considered physical addresses.
**They are generally represented in hexadecimal format.
They consist of four eight-bit octets of binary numbers.
They are used to determine the data path through the network.
They must be changed when an Ethernet device is added or moved within the network.

7


Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)

source MAC - PC
source MAC - S0/0 on RouterA
**source MAC - Fa0/1 on RouterB
**source IP - PC
source IP - S0/0 on RouterA
source IP - Fa0/1 of RouterB

8 What determines the method of media access control? (Choose two.)

network layer addressing
**media sharing
application processes
**logical topology
intermediary device function

9 What is the purpose of the preamble in an Ethernet frame?

is used as a pad for data
identifies the source address
identifies the destination address
marks the end of timing information
**is used for timing synchronization with alternating patterns of ones and zeros

10 What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)

**Layer 2 may identify devices by a physical address burned into the network card
Layer 2 identifies the applications that are communicating
**Layer 3 represents a hierarchical addressing scheme
Layer 4 directs communication to the proper destination network
Layer 4 addresses are used by intermediary devices to forward data

11 Which statements describe the logical token-passing topology? (Choose two.)

Network usage is on a first come, first serve basis.
**Computers are allowed to transmit data only when they possess a token.
Data from a host is received by all other hosts.
**Electronic tokens are passed sequentially to each other.
Token passing networks have problems with high collision rates.

12 Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?

LLC
**MAC
HDLC
NIC

13 What is true regarding media access control? (Choose three.)

**Ethernet utilizes CSMA/CD
**defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
**Data Link layer protocols define the rules for access to different media
controlled access contains data collisions

14 What is a characteristic of a logical point-to-point topology?

The nodes are physically connected.
The physical arrangement of the nodes is restricted.
**The media access control protocol can be very simple.
The data link layer protocol used over the link requires a large frame header.

15 What two facts are true when a device is moved from one network or subnet to another? (Choose two.)

The Layer 2 address must be reassigned.
The default gateway address should not be changed.
**The device will still operate at the same Layer 2 address.
Applications and services will need additional port numbers assigned.
**The Layer 3 address must be reassigned to allow communications to the new network.

16 What is a function of the data link layer?

provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
**provides for the exchange data over a common local media

17 Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)

the Layer 3 protocol selected
**the geographic scope of the network
the PDU defined by the transport layer
**the physical layer implementation
**the number of hosts to be interconnected

18 What is the primary purpose of the trailer in a data link layer frame?

define the logical topology
provide media access control
**support frame error detection
carry routing information for the frame

19 A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?

logical topology
**physical topology
cable path
wiring grid
access topology

20


Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?

All three networks use CSMA/CA
None of the networks require media access control.
**Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.

CCNA 1 Chapter 6

1) A user types http://www.cisco.com into a web browser address textbox. What does http://www.cisco.com represent?
* the IP address of a web server
a physical network address
the closest router interface to the source
the source IP address in the data transmission

2) What type of server would use IMAP?
DNS
DHCP
* e-mail
FTP
Telnet
web

3) Which type of server would most likely be used first by a network client in a corporate environment?
DNS
* DHCP
e-mail
FTP
Telnet
web

4) Which protocol is used by FTP to transfer files over the Internet?
* TCP
SMTP
UDP
SNMP

5) Which protocols are TCP/IP application layer protocols? (Choose two.)
UDP
* FTP
IP
* SMTP
TCP

6) Which of the following are layers of the TCP/IP model? (Choose three.)
* Application
Physical
* Internet
* Network Access
Presentation

7) You are creating a network-based video game. What influences your decision about which transport protocol to use for the application?
* UDP will not disrupt the game to retransmit dropped packets.
TCP provides extra acknowledgements that will ensure smooth video delivery.
Both TCP and UDP can be used simultaneously to ensure speed and guaranteed delivery.
Both TCP and UDP may slow transmission and disrupt game operation, so no transport protocol should be used.

8) Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?
Uniform Resource Locator
Network redirector server
SNMP server
* DNS server

9) Which application is most likely used to translate http://www.cisco.com to 198.133.219.25?
DHCP
* DNS
FTP
HTTP
POP
SMTP

10)

Refer to the graphic. Which protocol is used to access this website?
IM
FTP
* HTTP
SNMP
VoIP

11) Which port number is used by SMTP?
20
21
* 25
26
110

12) Which protocol is used by e-mail servers to communicate with each other?
FTP
HTTP
TFTP
* SMTP
POP
SNMP

13) What client software enables logged in users to communicate with other logged in users in real time?
blog
e-mail
web mail
* instant messaging

14) An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment?
The packet header identifies it as an HTTP or FTP packet.
The data in the segment is specially formatted for either HTTP or FTP.
* The segment destination port number identifies the application that should handle it.
The source port number is associated with one of these well known server applications.

15) What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network?
protocol hierarchy
protocol modeling
* protocol stack
protocol layering

16) hat three items are contained in an Ethernet frame? (Choose three.)
source IP address
* source MAC address
destination IP address
* destination MAC address
* error-checking information

17) What information is contained in an IP header?
* source and destination IP addresses
source and destination MAC addresses
only destination IP and MAC addresses
both source and destination IP and MAC addresses

18) Cabling issues are associated with which OSI layer?
4
2
* 1
3

19) A device receives an Ethernet frame and recognizes the MAC address as its own. What does the device do to the message to get to the encapsulated data?
removes the IP header
removes the TCP header
passes data to the application layer
* removes the Ethernet header and trailer

20) A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?
1) remove IP header
2) remove Ethernet header and trailer
3) remove TCP header
4) pass data to the application

1) add TCP header to data
2) add an IP header
3) add frame header and trailer
4) encode the frame into bits

* 1) remove Ethernet header and trailer
2) remove IP header
3) remove TCP header
4) pass data to the application

1) add TCP header to data
2) add Ethernet header and trailer
3) add an IP header
4) encode the frame into bits

21) What is an advantage of the use of layers in the OSI reference model?
It breaks network communications into larger parts.
It increases complexity.
* It prevents changes in one layer from affecting other layers.
It requires the use of single-vendor equipment for hardware and software communications.

22) What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model?
data link, physical, transport, network, presentation, session, application
physical, data link, network, session, transport, presentation, application
physical, data link, network, transport, presentation, session, application
* physical, data link, network, transport, session, presentation, application
application, session, presentation, transport, data link, network, physical

CCNA 1 Module 5

1 In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?

**destination network address
source network address
source MAC address
well known port destination address

2 What information is added during encapsulation at OSI Layer 3?

source and destination MAC
source and destination application protocol
source and destination port number
**source and destination IP address

3 In a connectionless system, which of the following is correct?

The destination is contacted before a packet is sent.
**The destination is not contacted before a packet is sent.
The destination sends an acknowledgement to the source that indicates the packet was received.
The destination sends an acknowledgement to the source that requests the next packet to be sent.

4 Which IP packet field will prevent endless loops?

type-of-service
identification
flags
**time-to-live
header checksum

5 Which portion of the network layer address does a router use to forward packets?

host portion
broadcast address
**network portion
gateway address

6

Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?

192.135.250.1
192.31.7.1
192.133.219.0
**192.133.219.1

7 If the default gateway is configured incorrectly on the host, what is the impact on communications?

The host is unable to communicate on the local network.
**The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.
There is no impact on communications.

8 What is the purpose of a default gateway?

physically connects a computer to a network
provides a permanent address to a computer
identifies the network to which a computer is connected
identifies the logical address of a networked computer and uniquely identifies it to the rest of the network
**identifies the device that allows local network computers to communicate with devices on other networks

9 What type of routing uses information that is manually entered into the routing table?

dynamic
interior
**static
standard

10 When the destination network is not listed in the routing table of a Cisco router, what are two possible actions that the router might take? (Choose two.)

The router sends an ARP request to determine the required next hop address.
**The router discards the packet.
The router forwards the packet toward the next hop indicated in the ARP table.
The router forwards the packet to the interface indicated by the source address.
**The router forwards the packet out the interface indicated by the default route entry.

11 What are the key factors to consider when grouping hosts into a common network? (Choose three.)

gateways
**purpose
physical addressing
software version
**geographic location
**ownership

12 What is a component of a routing table entry?

the MAC address of the interface of the router
the destination Layer 4 port number
the destination host address
**the next-hop address

13 Which intermediary devices could be used to implement security between networks? (Choose two.)

**router
hub
switch
**firewall
access point
bridge

14 What are three common problems with a large network? (Choose three.)

too few broadcasts
**performance degradation
**security issues
limited management responsibility
**host identification
protocol compatibility

15

Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown?

3
**4
5
7
8
11

16 Which three statements are true about routes and their use? (Choose three.)

If no route to the destination network is found, the packet is returned to the previous router.
**If the destination network is directly connected, the router forwards the packet to the destination host.
If multiple network entries exist for the destination network, the most general route is used to forward the packet.
**If no route exists for the destination network and a default route is present, the packet is forwarded to the next-hop router.
**If the originating host has a default gateway configured, the packet for a remote network can be forwarded using that route.
If a host does not have a route manually configured for the destination network, the host will drop the packet.

17

Refer to the exhibit. A network administrator is troubleshooting a connectivity problem and needs to determine the address that is used to forward network packets out the network. Using the netstat -r command, the administrator would identify which address as the address to which all hosts send packets that are destined for an outside network?

10.10.10.26
127.0.0.1
**10.10.10.6
10.10.10.1
224.0.0.0

18

Refer to the exhibit. A network administrator notices that there are too many broadcasts on the network. What two steps can the network administrator take to resolve this problem? (Choose two.)

**Replace S2 with a router.
Place all servers on S1.
Disable TCP/IP broadcasts.
**Subnet the 192.168.0.0 /24 network.
Disable all unused interfaces on the switches.

19

Refer to the exhibit. The network in the exhibit is fully operational. What two statements correctly describe the routing for the topology that is shown? (Choose two.)

**192.168.0.2 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 network to the 172.16.0.0 network.
10.0.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 10.0.0.0 network.
192.168.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 172.16.0.0 network.
172.16.0.1 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 to the 172.16.0.0 network.
**192.168.0.1 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
192.168.0.2 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.

20 What two characteristics are commonly associated with dynamic routing protocols? (Choose two.)

require no device configuration
**provide routers with up-to-date routing tables
require less processing power than static routes require
**consume bandwidth to exchange route information
prevent manual configuration and maintenance of the routing table

21 What statement describes the purpose of a default route?

A host uses a default route to transfer data to another host on the same network segment.
A host uses a default route to forward data to the local switch as the next hop to all destinations.
A host uses a default route to identify the Layer 2 address of an end device on the local network.
**A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists.

CCNA 1 Module 4

1

Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.)
The local host is using well-known port numbers to identify the source ports.
**A termination request has been sent to 192.135.250.10.
**Communication with 64.100.173.42 is using HTTP Secure.
The local computer is accepting HTTP requests.
192.168.1.101:1042 is performing the three-way handshake with 128.107.229.50:80.

2 After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server?
13
53
**80
1024
1728

3 Which information is found in both the TCP and UDP header information?
sequencing
flow control
acknowledgments
**source and destination

4 Which is an important characteristic of UDP?
acknowledgement of data delivery
**minimal delays in data delivery
high reliability of data delivery
same order data delivery

5

Refer to the exhibit. Host A is using FTP to download a large file from Server 1. During the download process, Server 1 does not receive an acknowledgment from Host A for several bytes of transferred data. What action will Server 1 take as a result?
create a Layer 1 jam signal
**reach a timeout and resend the data that needs to be acknowledged
send a RESET bit to the host
change the window size in the Layer 4 header

6

Refer to the exhibit. In line 7 of this Wireshark capture, what TCP operation is being performed?
**session establishment
segment retransmit
data transfer
session disconnect

7

Refer to the exhibit. The initial TCP exchange of data between two hosts is shown in the exhibit. Assuming an initial sequence number of 0, what sequence number will be included in Acknowledgment 2 if Segment 6 is lost?
2
3
6
1850
**3431
3475

8 Why is flow control used for TCP data transfer?
to synchronize equipment speed for sent data
to synchronize and order sequence numbers so data is sent in complete numerical order
**to prevent the receiver from being overwhelmed by incoming data
to synchronize window size on the server
to simplify data transfer to multiple hosts

9 During a TCP communication session, if the packets arrive to the destination out of order, what will happen to the original message?
The packets will not be delivered.
The packets will be retransmitted from the source.
**The packets will be delivered and reassembled at the destination.
The packets will be delivered and not reassembled at the destination.

10 With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications?
0 to 255
256 to 1022
**0 to 1023
1024 to 2047
49153 to 65535

11 Which transport layer protocol provides low overhead and would be used for applications which do not require reliable data delivery?
TCP
IP
**UDP
HTTP
DNS

12 What are two features of the User Datagram Protocol (UDP)? (Choose two.)
flow control
**low overhead
**connectionless
connection-oriented
sequence and acknowledgements

13 What mechanism is used by TCP to provide flow control as segments travel from source to destination?
sequence numbers
session establishment
**window size
acknowledgments

14 What is dynamically selected by the source host when forwarding data?
destination logical address
source physical address
default gateway address
**source port

15 Why are port numbers included in the TCP header of a segment?
to indicate the correct router interface that should be used to forward a segment
to identify which switch ports should receive or forward the segment
to determine which Layer 3 protocol should be used to encapsulate the data
**to enable a receiving host to forward the data to the appropriate application
to allow the receiving host to assemble the packet in the proper order

16 Which two options represent Layer 4 addressing? (Choose two.)
identifies the destination network
identifies source and destination hosts
**identifies the communicating applications
**identifies multiple conversations between the hosts
identifies the devices communicating over the local media

17 Which three features allow TCP to reliably and accurately track the transmission of data from source to destination?
encapsulation
**flow control
connectionless services
**session establishment
**numbering and sequencing
best effort delivery

18 Which OSI model layer is responsible for regulating the flow of information from source to destination, reliably and accurately?
application
presentation
session
**transport
network

19

Based on the transport layer header shown in the diagram, which of the following statements describe the established session? (Choose two.)
This is a UDP header.
**This contains a Telnet request.
This contains a TFTP data transfer.
The return packet from this remote host will have an Acknowledgement Number of 43693.
**This is a TCP header.

20 Which event occurs during the transport layer three-way handshake?
The two applications exchange data.
**TCP initializes the sequence numbers for the sessions.
UDP establishes the maximum number of bytes to be sent.
The server acknowledges the bytes of data received from the client.

21

Refer to the exhibit. Host1 is in the process of setting up a TCP session with Host2. Host1 has sent a SYN message to begin session establishment. What happens next?

Host1 sends a segment with the ACK flag = 0, SYN flag = 0 to Host2.
Host1 sends a segment with the ACK flag = 1, SYN flag = 0 to Host2.
Host1 sends a segment with the ACK flag = 1, SYN flag = 1 to Host2.
Host2 sends a segment with the ACK flag = 0, SYN flag = 1 to Host1.
Host2 sends a segment with the ACK flag = 1, SYN flag = 0 to Host1.
**Host2 sends a segment with the ACK flag = 1, SYN flag = 1 to Host1.