MCQs in Virtual-Circuit Networks: Frame Relay and ATM

MCQs in Virtual-Circuit Networks: Frame Relay and ATM from the book Data Communications and Networking 4th Edition by Behrouz A. Forouzan. Reviewer in Electronics Systems and Technologies (Communications Engineering).

MCQs for Virtual-Circuit Networks: Frame Relay and ATM

This is the MCQs in Virtual-Circuit Networks: Frame Relay and ATM from book the Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you before taking the Board Exam.

The topic discuss the two switched WANs: Frame Relay and ATM. Frame Relay is a virtual-circuit wide-area network that was designed in response to demands for a new type of WAN in the late 1980s and early 1990s. Asynchronous Transfer Mode (ATM) is a cell relay protocol that, in combination with SONET, allows high-speed connections. If you skip the summary and important terminology visit Virtual-Circuit Networks: Frame Relay and ATM .

Begin and Good luck!

Choose the letter of the best answer in each questions.

1. To handle frames arriving from other protocols, Frame Relay uses a device called a _________.

  • A)   MUX
  • B)   VOFR
  • C)   FRAD
  • D)   none of the above

2. In Frame Relay, an address can be ________ bytes.

  • A)   2 to 3
  • B)   2 to 4
  • C)   only f2
  • D)   none of the above

3. In ATM, the _____ layer defines the transmission medium, bit transmission, encoding, and electrical-to-optical transformation.

  • A)   AAL
  • B)   physical
  • C)   ATM layer
  • D)   none of the above

4. A _______ ATM LAN combines features of a pure ATM LAN and a legacy ATM LAN.

  • A)   legacy
  • B)   pure
  • C)   mixed architecture
  • D)   none of the above

5. A(n) ______ is the interface between a user and an ATM switch.

  • A)   NNN
  • B)   UNI
  • C)   NNI
  • D)   None of the above

6. In ATM, a virtual connection is defined by _________.

  • A)   DLCI
  • B)   VPI
  • C)   VCI
  • D)   a combination of (b) and (c)

7. In ATM, _______is for short packets.

  • A)   AAL5
  • B)   AAL3/4
  • C)   AAL2
  • D)   AAL1

8. In Frame Relay, when a _____ is selected, the corresponding table entry is recorded for all switches by the administrator.

  • A)   SVC
  • B)   PVC
  • C)   either (a) or (b)
  • D)   neither (a) nor (b)

9. In ATM, the _______layer accepts transmissions from upper-layer services and maps them into ATM cells.

  • A)   AAL
  • B)   physical
  • C)   ATM
  • D)   none of the above

10. The VPI of a UNI is _______ bits in length.

  • A)   32
  • B)   16
  • C)   12
  • D)   8

11. The ATM standard defines ______ layers.

  • A)   five
  • B)   four
  • C)   three
  • D)   two

12. ________ technology can be adapted for use in a LAN (ATM LAN).

  • A)   ATM
  • B)   X.25
  • C)   Frame Relay
  • D)   none of the above

13. VCIs in Frame Relay are called ______.

  • A)   SVC
  • B)   DLCIs
  • C)   PVC
  • D)   none of the above

14. The AAL is divided into _______ sublayers.

  • A)   four
  • B)   three
  • C)   two
  • D)   none of the above

15. _________ is the interface between two ATM switches.

  • A)   NNI
  • B)   NNN
  • C)   UNI
  • D)   none of the above

16. Frame Relay networks offer an option called ______________ that sends voice through the network.

  • A)   FRAD
  • B)   VOFR
  • C)   MUX
  • D)   none of the above

17. A _______ is defined as a small, fixed-size block of information.

  • A)   packet
  • B)   cell
  • C)   frame
  • D)   none of the above

18. In ATM, the ______ layer provides routing, traffic management, switching, and multiplexing services.

  • A)   ATM
  • B)   AAL
  • C)   physical
  • D)   none of the above

19. In ATM, _____ is for conventional packet switching (virtual-circuit approach or datagram approach).

  • A)   AAL5
  • B)   AAL3/4
  • C)   AAL2
  • D)   AAL1

20. Frame Relay provides ________.

  • A)   SVCs
  • B)   PVCs
  • C)   either (a) or (b)
  • D)   neither (a) nor (b)

21. In Frame Relay, the EA field defines the number of bytes; it is _____ in the last byte of the address.

  • A)   0
  • B)   1
  • C)   2
  • D)   3

22. In a _____ ATM LAN, an ATM switch connects stations.

  • A)   legacy
  • B)   pure
  • C)   mixed architecture
  • D)   none of the above

23. The VPI of an NNI is _______ bits in length.

  • A)   24
  • B)   16
  • C)   12
  • D)   8

24. At the data link layer, Frame Relay uses a protocol that supports _____control.

  • A)   error
  • B)   flow
  • C)   either (a) or (b)
  • D)   neither (a) nor (b)

25. ________ is the cell relay protocol designed by the corresponding Forum and adopted by the ITU-T.

  • A)   Frame Relay
  • B)   ATM
  • C)   X.25
  • D)   none of the above

26. In Frame Relay, when ______ is selected, it requires establishing and terminating phases.

  • A)   a PVC
  • B)   an SVC
  • C)   either (a) or (b)
  • D)   neither (a) nor (b)

27. In a _______ ATM LAN, the backbone that connects traditional LANs uses ATM technology.

  • A)   legacy
  • B)   pure
  • C)   mixed architecture
  • D)   none of the above

28. In ATM, connection between two endpoints is accomplished through _______.

  • A)   VCs
  • B)   TPs
  • C)   VPs
  • D)   all of the above

29. Frame Relay has _______.

  • A)   the physical, data link, and network layers
  • B)   the physical and data link layers
  • C)   only the data link
  • D)   only the physical layer

30. In ATM, ______ is for packets requiring no sequencing and no error control mechanism.

  • A)   AAL5
  • B)   AAL3/4
  • C)   AAL2
  • D)   AAL1

31. ______ eliminates the varying delay times associated with different-size packets.

  • A)   Frame Relay
  • B)   ATM
  • C)   X.25
  • D)   all of the above

32. In ATM, ______ is for constant-bit-rate data.

  • A)   AAL5
  • B)   AAL3/4
  • C)   AAL2
  • D)   AAL1

33. ________ is a virtual-circuit wide-area network that was designed in response to demands for a new type of WAN in the late 1980s and early 1990s.

  • A)   ATM
  • B)   Frame Relay
  • C)   X.25
  • D)   none of the above

34. The ATM data packet is a cell composed of ______ bytes.

  • A)   53
  • B)   52
  • C)   43
  • D)   42

Check your work.

Complete List of Chapter Quiz in Data Communications and Networking

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credit: Behrouz A. Forouzan© 2014 www.PinoyBIX.org

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