ccna interview questions and answers

751. Identify the default values that make up IGRP's composite metric?

A.) Bandwidth

B.) Load

C.) Reliability

D.) MTU


E.) Delay

Ans A E

752. Identify the default encapsulation on serial interfaces?

A.) ISDN

B.) HDLC

C.) SDLC

D.) Frame Relay

E.) PPP

Ans B


753. Identify the purpose of ARP?

A.) Avoiding routing loops

B.) Determining a workstation's IP address

C.) Sending a directed broadcast

D.) Determining a workstation's MAC address

Ans D


754. What is the purpose of the DLCI?

A.) Identifies the remote routers

B.) Contained with a 802.2 frame for routing purposes

C.) Used with PPP during authentication

D.) Identifies the PVC in a Frame Relay network

Ans D

755. Identify 3 characteristics of the Network layer (OSI layer 3)?

A.) Connnection oriented

B.) Path determination

C.) Supports multiplexing

D.) Manages sessions

E.) Packet forwarding

Ans B C E

756. Identify 3 characteristics of switches?

A.) Increase available bandwidth

B.) Decrease broadcast traffic

C.) Support full duplex in a multipoint topology

D.) Make fowarding decision using MAC address

E.) Create collision domains

Ans A D E

757. Which OSI layer handles physical addresses and network topology?

A.) Presentation

B.) Physical

C.) Transport

D.) Application

E.) Data-Link

F.) Network

Ans E

758 Identify 2 reasons for disabling CDP?

A.) If the router is not configured for RIP

B.) Save bandwidth by eliminating overhead

C.) If the router is configured for Appletalk

D.) When connected to a non-Cisco router

Ans B D

759. Identify 3 characteristics of ISDN?

A.) Transports voice and data

B.) Transports voice only

C.) Support both BRI and PRI

D.) Runs over existing phone lines

E.) Same as X.25

Ans A C D

760. Identify the 3 characteristics of IGRP?

A.) Uses hop count as a metric

B.) Supports multiple unequal paths

C.) Administrative distance is 100

D.) Configured with an Automous system number

E.) Link state Ans B C D

761. Identify 2 features of PPP CHAP authentication?

A.) Username and password is sent in clear text

B.) Authentication messages are sent periodically during the connection

C.) Less secure then PAP

D.) Local router 'challenges' the remote router

Ans B D

762. Identify the default IPX serial encapsulation?

A.) Novell-Ether

B.) SDLC

C.) SNAP

D.) HDLC

Ans A

763. Identify the hardware component that stores the backup configuration?

A.) RAM

B.) NVRAM

C.) Flash

D.) ROM

Ans B

764. Identify the named IP access-list number range?

A.) 600 - 699

B.) 1 - 99

C.) 900 - 999

D.) 200 - 299

E.) none of the above

Ans E

765 Identify 3 Fast Ethernet technologies?

A.) 100 Base FastEther

B.) 100 Base FX

C.) 100 Base T4

D.) 100 Base TX

Ans B C D


766. Identify the OSI layer responsible for end-to-end connections?

A.) Network

B.) Transport

C.) Session

D.) Data link

E.) TCP

Ans B

767. Identify the 2 characteristics regarding MAC addresses?

A.) Contains a network portion and host portion

B.) Always assigned by System Administrator

C.) 48 bits long

D.) Contains a vendor code and serial number

Ans C D

768. Identify the number range for IPX SAP filters?

A.) 900 - 999

B.) 1000 - 1099

C.) 800 -899

D.) 100 - 199

Ans B

769. What is the purpose of ARP?

A.) IP to host name resolution

B.) Host name to IP address resolution

C.) Mac to IP address resolution

D.) IP to Mac address resolution

Ans D

770. Which OSI layer establishes, maintains and terminates sessions between applications?

A.) Application

B.) Physical

C.) Data-Link

D.) Presentation

E.) Network

F.) Session

Ans F


781. Identify the type of routing protocol that exchanges entire routing tables at regular intervals?


A.) Link state

B.) Interior gateway protocols

C.) Appletalk routing

D.) Distance vector

Ans D

782. Identify the type of hardware required to connect a Token ring network to an Ethernet network?

A.) Repeater

B.) TR-Enet

C.) Router

D.) Token Ring to Ethernet translation hub

Ans C

783 Identify 3 characteristics regarding CDP?

A.) On by default

B.) Shows only directly connected neighbors

C.) Requires IP or IPX

D.) 60 second update interval by default

E.) 30 second updates interval by default

Ans A B D

784. Identify 2 transport layer protocols?

A.) IP

B.) TCP

C.) CDP

D.) ARP

E.) UDP

Ans B E

785. Identify 2 features of X.25?

A.) Supports only IP

B.) Utilizes switched and permanent virtual circuits

C.) Contains minimal flow control and error recovery

D.) Utilizes LAPB as it's data-link protocol

Ans

786. Identify the purpose of the Trace command?

A.) Explorer packet transmitting routing information

B.) Test connectivity

C.) Determine the path a packet is taking through the network

D.) Transmits user data when buffers are full

Ans C

787. Identify the purpose of the TCP 3 step handshake?

A.) Setup a un-reliable connection

B.) Initialize routing tables

C.) Synchronize sequence numbers between hosts

D.) Connection tear down process

Ans C

788. Identify 2 PPP characteristics?

A.) Is proprietary to Cisco

B.) Supports authentication

C.) Support compression

D.) Run on a multi-access network

Ans B C

789 Which statements are true regarding half duplex?

A.) Only works in a point-to-point configuration

B.) Allows for transmitting and receiving but not at the same time

C.) Allow for transmitting and receiving of data simultaneously

D.) Doubles the bandwidth

Ans A C D

790. Identify the purpose of the wildcard mask?

A.) Match a certain portion of the IP address while ignoring the rest of the address


B.) Determine the class of the IP address

C.) Determine the network portion of an IP address

D.) Hide the host portion of an IP address

Ans A

791. Identify the OSI layer associated with bits?

A.) Physical

B.) Network

C.) Binary

D.) Data link

Ans A

792. Identify the type of routing protocol that maintains a topological database of the network?

A.) Topological state

B.) Shortest Path First

C.) Link state

D.) Distance vector

Ans C

793. Identify the 3 major functions at layer 3 of the OSI model?

A.) Forwarding process

B.) Logical addressing

C.) End-to-end connnections

D.) Path selection

E.) MAC address examination

F.) Network monitoring

Ans A B D

794. Identify the 2 rules used when configuring a Distance Vector routing protocol?

A.) Physically connected network(s)

B.) Configure the classfull address, no subnets

C.) Enable CDP so neighbors can be detected

D.) Same autonomous network

Ans A D

795. Identify 3 characteristics of an IP address?

A.) Contains a network portion and a host portion

B.) 32 bits long

C.) Unique to each network

D.) Part of the default Cisco configuration

E.) Referred to as the hardware address

Ans A B C

796. Identify 3 feature of access-lists?

A.) Implicit deny will deny any packets not matched

B.) Processed sequentially from bottom to top

C.) Processed sequentially from top to bottom

D.) If a packet is denied it would be tested against the remaining statements in the access-list

E.) Once a match is made the packet is either denied or permitted

F.) Enabled on all interfaces by default

Ans A C E

797. Which OSI layer performs code conversion, code formatting and encryption?

A.) Physical

B.) Data-Link

C.) Application

D.) Transport

E.) Presentation

F.) Network

Ans E

798 Identify the 3 methods routers learn paths to destinations?

A.) Dynamic routing

B.) None of the above, configured by default

C.) Default routes

D.) Administrative distance

E.) Static routes

Ans A C E

799 Identify the purpose of the following command 'ip route 192.168.100.0 255.255.255.0 10.1.0.1'

A.) Enabling a dynamic routing protocol

B.) Creating a static route to the 10.1.0.0 network

C.) Teaches the router about the distant network 192.168.100.0 and how it can be reached via 10.1.0.1

D.) Assigining the IP address 192.168.100.0 to an interface

Ans C

800. Based upon the 1st octet rule identify the range for a Class A address?

A.) 1 - 126

B.) 192 - 223

C.) 128 - 191

D.) 1 - 191

Ans A

CCNA Interview Questions and Answers