ccna interview questions and answers

851. What is the extended IPX access list range?
A.) 901-1000
B.) 100-199
C.) 900-999
D.) 1000-1000

Ans C

852. CPE is an acronym for which of the following?
A.) Customer Premise Equipment
B.) Central Processing Engineering
C.) Customer Process Equipment
D.) Central Processing Equipment

Ans A

853. How often does IP RIP send out routing table updates by default?
A.) They send complete updates every 30 seconds
B.) They send partial updates every 30 seconds
C.) They send complete updates every 60 seconds
D.) They send partial updates every 60 seconds

Ans A

854 Which ISDN protocol prefix specifies switching and signalling?
A.) I
B.) E
C.) Q
D.) S

Ans Q

855. CSMA/CD stand for which of the following?
A.) Carrier Sense, Multiple Access with Collision Detection
B.) Collision Sense, Multiple Access with Collision Detection
C.) Collision Sense, Multiple Access with Carrier Detection
D.) Carrier Sense, MAC address with Collision Detection

Ans B

856. Which of the following are Distance Vector protocols?
A.) IGRP
B.) RIP
C.) OSFP
D.) EIGRP
Ans A B

857. UDP works at which layer of the DOD model?
A.) Internet
B.) Host-to-Host
C.) Transport
D.) Data Link

Ans B

858. Of the following switching types, which one has the lowest latency? A.) Cut-through
B.) Fragment Free
C.) None
D.) Store-and-forward

Ans A

859. What is an administrative distance of 0 mean?
A.) 0 means unbelievable
B.) 0 is for EIGRP
C.) 0 is the default distance for directly connected networks
D.) 0 means unreachable

Ans C

860. Which of the following describe full-duplex transmission?
A.) Uses a single wire
B.) Data transmission in both directions, but only one way at a time
C.) Uses a point-to-point connection from the transmitter of the transmitting station to the receiver of the receiving station
D.) Data transmission in only one direction Ans C

871 What does 'P' mean when running a Trace?
A.) Good route
B.) Protocol unreachable
C.) Source Quench
D.) Destination unreachable

Ans B

872. What is the Network Layer of the OSI responsible for?
A.) Bridging
B.) Routing packets through an internetwork
C.) Regenerating the digital signal
D.) Gateway services

Ans B

873 Which layer is responsible for routing through an internetwork?
A.) Physical
B.) Session
C.) Network
D.) Transport
E.) Application
F.) Data Link

Ans C

874. What three occurrences will reset the holddown timer after a triggered update?
A.) Infinity is finally defined as some max number
B.) HD Timer expires
C.) Another update is received indicating a better metric
D.) The router receives a processing task proportional to the number of links in the internetwork
E.) The router detects fault LSP's propagating through the internetwork F.) Another update is received indicating net status changed

Ans A B C

875. Which layer is responsible for putting 1s and 0s into a logical group?
A.) Session
B.) Application
C.) Transport
D.) Data Link
E.) Physical
F.) Network
Ans E

876. How many LMI types are available on Cisco routers?
A.) Four
B.) Two
C.) Five
D.) Three

Ans D

877. Which layer is responsible for framing?
A.) Application
B.) Data Link
C.) Physical
D.) Network
E.) Transport

Ans B

878. What ISDN protocol specifies concepts, terminology, and services?
A.) Q
B.) S
C.) I
D.) E

Ans C

879. What is the purpose of Split Horizon?
A.) It prevents the regular update messages from reinstating a route that has gone down
B.) Information received on an interface cannot be sent back out the same interface
C.) Informs all neighbor routers that two routes exist
D.) Tells the router the destination is unreachable

Ans B

880. WAN stands for which of the following?
A.) Wide Arena Network
B.) World Area Network
C.) Wide Area News
D.) Wide Area Network

Ans D

871 What does 'P' mean when running a Trace?
A.) Good route
B.) Protocol unreachable
C.) Source Quench
D.) Destination unreachable

Ans B

872. What is the Network Layer of the OSI responsible for?
A.) Bridging
B.) Routing packets through an internetwork
C.) Regenerating the digital signal
D.) Gateway services

Ans B

873 Which layer is responsible for routing through an internetwork?
A.) Physical
B.) Session
C.) Network
D.) Transport
E.) Application
F.) Data Link

Ans C

874. What three occurrences will reset the holddown timer after a triggered update?
A.) Infinity is finally defined as some max number
B.) HD Timer expires
C.) Another update is received indicating a better metric
D.) The router receives a processing task proportional to the number of links in the internetwork
E.) The router detects fault LSP's propagating through the internetwork F.) Another update is received indicating net status changed

Ans A B C

875. Which layer is responsible for putting 1s and 0s into a logical group?
A.) Session
B.) Application
C.) Transport
D.) Data Link
E.) Physical
F.) Network

Ans E

876. How many LMI types are available on Cisco routers?
A.) Four
B.) Two
C.) Five
D.) Three

Ans D

877. Which layer is responsible for framing?

A.) Application
B.) Data Link
C.) Physical
D.) Network
E.) Transport

Ans B

878. What ISDN protocol specifies concepts, terminology, and services?
A.) Q
B.) S
C.) I
D.) E

Ans C

879. What is the purpose of Split Horizon?
A.) It prevents the regular update messages from reinstating a route that has gone down
B.) Information received on an interface cannot be sent back out the same interface
C.) Informs all neighbor routers that two routes exist
D.) Tells the router the destination is unreachable

Ans B

880. WAN stands for which of the following?
A.) Wide Arena Network
B.) World Area Network
C.) Wide Area News
D.) Wide Area Network

Ans D

881. Which of the following provide connection-oriented transport to upper layer protocols?
A.) SPX
B.) RIP
C.) NLSP
D.) NCP

Ans A

882. Which two does 100BaseT use?
A.) CSMA/CD
B.) IEEE 802.5
C.) 802.3u
D.) Switching with 53-byte cells

Ans A

883. Which layer is responsible for flow control, acknowledgement, and windowing?
A.) Transport
B.) Network
C.) Application
D.) Session
E.) Physical
F.) Data Link
Ans A

884. Which of the following is used to manage and monitor the network?
A.) SNMP
B.) HTTP
C.) IP
D.) FTP

Ans A

885 What is true about Link-State protocols?
A.) They maintain a more complex table than distant vector protocols
B.) They maintain a less complex table than distant vector protocols
C.) They use routing ports
D.) The maintain backup copies of the IOS

Ans A

886. The maximum distance on a 10BaseT network from the hub to a workstation is which of the following?
A.) 500 meters
B.) 1000 meters
C.) 100 meters
D.) 1500 meters

Ans C

887 Which of the following use PVCs at layer 2?
A.) X.25
B.) HDLC
C.) Frame relay
D.) ISDN

Ans C

888. What is the routing algorithm used by RIP and IGRP?
A.) OSPF
B.) Link-state
C.) Dynamic
D.) Distance Vector

Ans D

889. Which layer is responsible for negotiating data transfer syntax?
A.) Network
B.) Session
C.) Application
D.) Transport
E.) Presentation

Ans E

890 What are hold-downs used for?
A.) To prevent regular update messages from reinstating a route that has come back up
B.) Information received on an interface cannot be sent back out the same interface
C.) To prevent regular update messages from reinstating a route that has gone down
D.) To hold the routing table from being sent to another router

Ans C

891 Which of the following protocols are used for logical network addressing?
A.) IP
B.) TCP
C.) ARP
D.) ICMP
E.) RARP
F.) BootP

Ans A

892 Which can be logged by IPX extended access lists?
A.) source address
B.) protocol
C.) source socket
D.) access list number
E.) destination socket
F.) destination address
Ans A B S D E F

893. Put the following steps of encapsulation into the correct order:
1) The data is broken into segments to be organized
2) Frames are converted to 1s and 0s to be put on the wire
3) Packets are converted into frames
4) Information that users enter is converted into data
5) The segments are changed to packets to be routed

A.) 4, 1, 3, 2, 5
B.) 4, 5, 1, 3, 2
C.) 2, 3, 1, 4, 5
D.) 4, 1, 5, 3, 2

Ans D

894 Which port numbers are used by TCP and UDP to set up sessions with other hosts?
A.) 1024 and above
B.) 6 and 17 respectively
C.) 1-25
D.) 6-17

Ans A

895 Repeaters work at which layer of the OSI model?
A.) Network
B.) Session
C.) Transport
D.) Physical
Ans D

896. What protocols can you use while testing Trace?
A.) DECnet
B.) CLNS
C.) IP
D.) Old Vines
E.) Vines
F.) Chaos

Ans B C D E

897. What utility can you use to see the path a packet takes through an internetwork?
A.) Route
B.) SNMP
C.) Trace
D.) Ping

Ans C

898 What is true about frame-relay DLCI?
A.) DLCI represents a single physical circuit
B.) DLCI is optional in all frame-relay networks
C.) DLCI identifies a logical connection between DTE devices
D.) DLCI is used to tag the beginning of a frame with VLAN information

Ans C

899 Which frame has a Type field to identify the upper-layer protocol?
A.) 802.3
B.) 802.2
C.) 802.5
D.) Ethernet_II

Ans A

900. Which protocol will let neighbor routers know if your internetwork experienced congestion on a serial port?
A.) BootP
B.) IP
C.) ICMP
D.) ARP
E.) FTP
F.) RARP

Ans C