Forouzan: MCQ in Connecting LANs, Backbone Networks, and Virtual LANs

(Last Updated On: April 20, 2018)
MCQs Connecting LANs, Backbone Networks, and Virtual LANs - Set 1
This is the MCQ in Connecting LANs, Backbone Networks, and Virtual LANs from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in datacom, topic in Electronics Systems and Technologies (Communications Engineering) this will definitely help you before taking the Board Exam.

In this particular topic you have learned how to connect wired and wireless LANs using connecting devices. If you skip the summary and important terminology visit Connecting LANs, Backbone Networks, and Virtual LANs .

Begin and Good luck!

Choose the letter of the best answer in each questions.

1. VLANs create _________ domains.

A)   multicast

B)   broadcast

C)   unicast

D)   none of the above

View Answer:

Answer: Option B

Solution:

2. A ________ operates in both the physical and the data link layer.

A)   router

B)   bridge

C)   repeater

D)   passive hub

View Answer:

Answer: Option B

Solution:

3. A _______ is a device that operates only in the physical layer.

A)   bridge

B)   router

C)   passive hub

D)   repeater

View Answer:

Answer: Option D

Solution:

4. A ______ switch is a faster and more sophisticated router.

A)   two-layer

B)   four-layer

C)   three-layer

D)   none of the above

View Answer:

Answer: Option C

Solution:

5. _________ is just a connector.

A)   A passive hub

B)   An active hub

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option A

Solution:

6. A ______ normally connects LANs and WANs in the Internet and has a table that is used for making decisions about the route.

A)   router

B)   bridge

C)   repeater

D)   none of the above

View Answer:

Answer: Option A

Solution:

7. A repeater is a connecting device that operates in the _______ layer of the Internet model.

A)   network

B)   data link

C)   physical

D)   all of the above

View Answer:

Answer: Option C

Solution:

8. A _______ regenerates a signal, connects segments of a LAN, and has no filtering capability.

A)   router

B)   repeater

C)   bridge

D)   none of the above

View Answer:

Answer: Option B

Solution:

9. In a(n) _______ configuration, the administrator types the port numbers, the IP addresses, or other characteristics, using the VLAN software.

A)   automatic

B)   manual

C)   semiautomatic

D)   none of the above

View Answer:

Answer: Option B

Solution:

10. A _______ LAN allows several LANs to be connected.

A)   wired

B)   wireless

C)   backbone

D)   none of the above

View Answer:

Answer: Option C

Solution:

11. A backbone is usually a ______.

A)   star

B)   bus

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option C

Solution:

12. A bridge can use the _________ algorithm to create a loopless topology.

A)   multiway tree

B)   binary tree

C)   spanning tree

D)   none of the above

View Answer:

Answer: Option C

Solution:

13. ________ is actually a multiport repeater. It is normally used to create connections between stations in a physical star topology.

A)   A passive hub

B)   An active hub

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option B

Solution:

14. In a _____ backbone, the backbone is just one switch.

A)   star

B)   bus

C)   ring

D)   none of the above

View Answer:

Answer: Option A

Solution:

15. A spanning tree is a graph in which there is no _____.

A)   arc

B)   loop

C)   node

D)   branch

View Answer:

Answer: Option B

Solution:

16. A ________ bridge can forward and filter frames and automatically build its forwarding table.

A)   dual

B)   transparent

C)   simple

D)   none of the above

View Answer:

Answer: Option B

Solution:

17. A virtual local area network (VLAN) is configured by _________.

A)   hardware

B)   physical wiring

C)   software

D)   none of the above

View Answer:

Answer: Option C

Solution:

18. A ________ is normally a computer that operates in all five layers of the Internet model or seven layers of OSI model.

A)   gateway

B)   router

C)   bridge

D)   repeater

View Answer:

Answer: Option A

Solution:

19. A ________ is a device in which the stations are completely unaware of its existence.

A)   simple bridge

B)   transparent bridge

C)   passive hub

D)   repeater

View Answer:

Answer: Option B

Solution:

20. A ______ has a table used in filtering decisions.

A)   bridge

B)   passive hub

C)   repeater

D)   none of the above

View Answer:

Answer: Option A

Solution:

21. In a star-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is the collision point.

A)   A passive hub

B)   An active hub

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option A

Solution:

22. VLANs can_________.

A)   provide an extra measure of security

B)   reduce network traffic

C)   either (a) or (b)

D)   both (a) and (b)

View Answer:

Answer: Option D

Solution:

23. A ________ link acts as a LAN in a remote backbone connected by remote bridges.

A)   multidrop

B)   point-to-point

C)   multipoint

D)   none of the above

View Answer:

Answer: Option B

Solution:

24. A __________ forwards every frame; it has no filtering capability.

A)   router

B)   bridge

C)   passive hub

D)   repeater

25. A _______ is a connecting device that operates in the physical and data link layers of the Internet model.

A)   router

B)   repeater

C)   bridge

D)   none of the above

View Answer:

Answer: Option C

Solution:

26. A _______ can check the MAC addresses contained in the frame.

A)   repeater

B)   bridge

C)   router

D)   passive hub

View Answer:

Answer: Option B

Solution:

27. ________ is part of the media; its location in the Internet model is below the physical layer.

A)   A passive hub

B)   An active hub

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option A

Solution:

28. In a(n) _____ configuration, the stations are automatically connected or disconnected from a VLAN using criteria defined by the administrator.

A)   automatic

B)   semiautomatic

C)   manual

D)   none of the above

View Answer:

Answer: Option A

Solution:

29. IEEE 802.1d specification, defines _________ criteria for a transparent bridges.

A)   two

B)   four

C)   three

D)   none of the above

View Answer:

Answer: Option C

Solution:

30. A two-layer switch is a ______.

A)   router

B)   repeater

C)   bridge

D)   none of the above

View Answer:

Answer: Option C

Solution:

31. In a bridged LAN, the _______ algorithm creates a topology in which each LAN can be reached from any other LAN through one path only.

A)   binary tree

B)   spanning tree

C)   unary tree

D)   none of the above

View Answer:

Answer: Option B

Solution:

32. A _____ can be used as a connecting device between two internetworks that use different models.

A)   gateway

B)   router

C)   bridge

D)   repeater

View Answer:

Answer: Option A

Solution:

33. Membership in a VLAN can be based on _________.

A)   MAC addresses

B)   IP addresses

C)   port numbers

D)   all of the above

View Answer:

Answer: Option D

Solution:

34. A ________receives a signal and, before it becomes too weak or corrupted, regenerates the original bit pattern. It then sends the refreshed signal.

A)   router

B)   bridge

C)   repeater

D)   passive hub

View Answer:

Answer: Option C

Solution:

35. In a(n) ______ configuration, the initializing is done manually, with migrations done automatically.

A)   automatic

B)   semiautomatic

C)   manual

D)   none of the above

View Answer:

Answer: Option B

Solution:

36. A _______ is a three-layer device that handles packets based on their logical addresses.

A)   router

B)   repeater

C)   bridge

D)   none of the above

View Answer:

Answer: Option A

Solution:

37. A three-layer switch is a kind of ________.

A)   bridge

B)   router

C)   repeater

D)   none of the above

View Answer:

Answer: Option B

Solution:

38. Some new two-layer switches, called _______ switches, have been designed to forward the frame as soon as they check the MAC addresses in the header of the frame.

A)   come-through

B)   go-through

C)   cut-through

D)   none of the above

View Answer:

Answer: Option C

Solution:

Complete List of Chapter Quiz in Data Communications and Networking

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Forouzan: MCQ in Connecting LANs, Backbone Networks, and Virtual LANs
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