WAN 1000+ MCQ with answer for ISRO Recruitment

1. You are given this address space: 172.16.5.0/25. You need one network with 64 hosts and two with 30 hosts. What are the most specific subnet mask values to use?
A. /25 and /26
B. /26 and /27
C. /27 and /28
D. None of these
Answer : D

2. Which command takes you from Privilege EXEC mode to User EXEC mode?
A. enable
B. disable
C. exit
D. logout
Answer : B

3. A VTP server switch generates a summary advertisement every _________ minutes.
A. 1
B. 2
C. 3
D. 5
Answer : D

4. A ___________ is basically all of the components, hardware and software, involved
in connecting computers across small and large distances.
A. LAN
B. WAN
C. Network
D. SAN
Answer : C

5. You have ISL trunks in your network and five VLANs configured. How many instances of STP are running?
A. 1
B. 5
C. 10
D. 15
Answer : B

6. Which types of memory do not maintain their contents during a power-off state?
A. NVRAM
B. ROM
C. RAM
D. Flash
Answer : C

7. Which controller command specifies how ones and zeros are represented on a digital circuit?
A. framing
B. linecode
C. clock source
D. interface
Answer : B

8. A _________ provides a high-speed infrastructure to move data between storage devices and file servers.
A. SAN
B. LAN
C. CN
D. SAN and CN
Answer : A

9. Which of the following is true concerning ISL?
A. It is supported on both the 1900 and 2950 switches.
B. It adds a 26-byte trailer and 4-byte header.
C. Tagging is done in software.
D. The original Ethernet frame is not modified.
Answer : D

10. ___________ has both physical and logical ring topologies.
A. Ethernet
B. FDDI
C. Token Ring
D.
Answer : B

11. A __________ route is the best path to reach a destination within the topology table.
A. Successor
B. Feasible successor
C. Advertised distance
D. Feasible distance
Answer : A

12. When using the show interfaces command, which Frame Relay information can you not see?
A. The DLCI number used for LMI
B. The number of LMIs sent and received
C. Statuses of PVCs
D. The LMI type
Answer : C

13. You have a total of five routers. ________ circuits are required to fully mesh the network, where every router needs ___________ interfaces.
A. 5, 5
B. 8, 4
C. 10, 5
D. 10, 4
Answer : D

14. VLSM allows you to summarize __________ back to the class boundary.
A. Subnets
B. Networks
C.
D.
Answer : A

15. When connecting a router to a PC, use a __________ cable.
A. Crossover
B. Straight-through
C. Rollover
D.
Answer : A

16. Extended traceroute works from which mode?
A. User EXEC
B. Privilege EXEC
C. Configuration
D. User and Privilege EXEC
Answer : B

17. Which of the following is true concerning bridges?
A. They switch frames in hardware.
B. They support half- and full-duplexing.
C. They support one collision domain for the entire bridge.
D. They do only store-and-forward switching.
Answer : D

18. 191.75.39.24 is a Class __________ address.
A. A
B. B
C. C
D. None of the above
Answer : B

19. OSPF hellos are sent every __________ seconds on a multi-access medium.
A. 5
B. 10
C. 15
D. 40
Answer : B

20. Private addressing is defined in RFC ______.
A. 1920
B. 1934
C. 1818
D. 1918
Answer : D

21. Which command defines interesting traffic?
A. dialer-group
B. dialer-list
C. dialer map
D. dialer remote-name
Answer : B

22. When configuring a router-on-a-stick, the configuration is done on __________.
A. Physical interfaces
B. Major subinterfaces
C. Subinterfaces
D.
Answer : C

23. Which command is used to define the local addresses that are statically translated to global addresses?
A. ip nat inside source static
B. ip nat inside
C. ip nat inside source list
D. ip nat pool
Answer : A

24. IOS images can be loaded from all the following except:
A. ROM
B. Flash
C. NVRAM
D. TFTP
Answer : C

25. What command assigns a User EXEC password to a 2950 switch?
A. password
B. login
C. enable password
D. enable password level
Answer : A

26. A _________ routes between different autonomous systems.
A. BPG
B. EGP
C. IPP
D. IGP
Answer : B

27. If the port status LED on a 2950 is ________, there is a physical layer connection problem.
A. Flashing green and amber
B. Flashing green
C. Amber
D. Flashing amber
Answer : A

28. Which command assigns a default gateway to the 2950 switch?
A. (config)# default-gateway
B. (config-if)# default-gateway
C. (config-if)# ip default-gateway
D. (config)# ip default-gateway
Answer : D

29. The default encapsulation on a synchronous serial interface is _________.
A. HDLC
B. PPP
C. Neither HDLC nor PPP
D.
Answer : A

30. A _________ connects two or more LANs in the same geographic area.
A. LAN
B. WAN
C. MAN
D. SAN
Answer : C

31. Which of the following is false concerning OSPF?
A. It provides a loop-free topology.
B. It is a classful protocol and allows for a hierarchical design.
C. It requires more memory and processing cycles than distance vector protocols.
D. It is complex to configure and difficult to troubleshoot.
Answer : B

32. Which of the following is true concerning full-duplexing?
A. It can either send or receive frames, but not both simultaneously.
B. It can be used with hubs.
C. It can be used with 10Base5 cabling.
D. It uses point-to-point connections.
Answer : D

33. An OSPF's router ID is based on __________.
A. The lowest IP address on its loopback interface, if configured, or the lowest IP address onits active interfaces
B. The highest IP address on its loopback interface, if configured, or the highest IP address on its active interfaces
C. The highest IP address on its active interfaces, if configured, or the highest IP address on its loopback interfaces
D. The lowest IP address on its active interfaces, if configured, or the lowest IP address on its loopback interfaces
Answer : B

34. A _________ is a network that provides a secure connection from a company to other business partners.
A. Intranet
B. Extranet
C. Internet
D.
Answer : B

35. A Class A address has _________ host bits.
A. 8
B. 16
C. 20
D. 24
Answer : D

36. How many steps do LCP and NCP go through when setting up a connection?
A. 1
B. 2
C. 3
D. 4
Answer : C

37. Cisco routers generate LMI enquiries every _______ seconds and a full status update every _________ seconds.
A. 10, 60
B. 10, 6
C. 60, 300
D. 15, 60
Answer : C

38. Which protocol supports VLSM?
A. RIPv2
B. IGRP
C. RIP and IGRP
D. None of these
Answer : A

39. Which of the following is false concerning CHAP?
A. It sends an encrypted password.
B. It sends a challenge.
C. It is more secure than PAP.
D. It uses a three-way handshake.
Answer : A

40. Which VTP mode(s) will propagate VTP messages?
A. Client and server
B. Server
C. Client, server, and transparent
D. Transparent
Answer : C

41. When configuring the ip nat inside source command, which parameter must you specify to perform PAT?
A. pat
B. overload
C. load
D. port
Answer : B

42. RIP has a maximum hop count of ____________ hops.
A. 10
B. 15
C. 16
D. 100
Answer : B

43. A __________ topology uses a single connection to connect all devices together.
A. Bus
B. Star
C. Point-to-point
D. Ring
Answer : A

44. You execute the line console 0 command from Configuration mode. What will the router's prompt be?
A. Router(config)#
B. Router(config-line)#
C. Router(config-interface)#
D. Router#(config-if)
Answer : B

45. Which command activates an IP ACL on a router's interface?
A. access-list
B. ip access-group
C. access-class
D. access-group
Answer : B

46. If the 1900's mode is FDUP, and the LED is _________, the port speed is set to autodetect.
A. Green
B. Off
C. Amber
D. None of these
Answer : D

47. The dialer map command contains all of the following parameters except __________.
A. Protocol name
B. Remote router name
C. Address of local router
D. Speed of the connection
Answer : C

48. Which of the following is a valid subnet mask value?
A. 255.0.255.255
B. 0.0.0.255
C. 255.255.254.0
D. 255.255.255.256
Answer : C

49. A _________ is used to connect networking devices that are in a very close geographic area, such as a floor of a building, a building itself, or a campus environment.
A. WAN
B. LAN
C. MAN
D. LAN and MAN
Answer : B

50. Which control sequence moves the cursor to the end of the line?
A. CTRL-A
B. ctrl-p
C. ctrl-e
D. ctrl-z
Answer : C