In this section of Data Communication and Networking – Multiple Access MCQ (Multiple Choice) Based Questions and Answers,it cover the below lists of topic. All the Multiple Choice Questions and Answers (MCQs) have been compiled from the book of Data Communication and Networking by The well known author behrouz forouzan.

This Section covers below lists of topics.

  1. Point-to-Point Protocol (PPP) MCQs.
  2. Link Control Protocol (LCP) MCQs.
  3. Password Authentication Protocol (PAP) MCQs.
  4. Challenge Handshake Authentication Protocol (CHAP) MCQs.
  5. Network Control Protocol (NCP) MCQs.
  6. Internetwork Protocol Control Protocol (IPCP) MCQs

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

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1. We have categorized access methods into _______ groups.

  • two
  • three
  • four
  • five

2. In ___________ methods, no station is superior to another station and none is assigned the control over another

  • random access
  • controlled access
  • channelization
  • none of the above

3. In ______, the chance of collision can be reduced if a station senses the medium before trying to use it.

  • MA
  • CSMA
  • FDMA
  • CDMA

4. _______ requires that each station first listen to the medium before sending.

  • MA
  • CSMA
  • FDMA
  • CDMA

5. __________ augments the CSMA algorithm to detect collision

  • CSMA/CA
  • CSMA/CD
  • either (a) or (b)
  • both (a) and (b)

6. in ________, a station monitors the medium after it sends a frame to see if the transmission was successful. If so, the station is finished. If, however, there is a collision, the frame is sent again

  • CSMA/CA
  • CSMA/CD
  • either (a) or (b)
  • both (a) and (b)

7. To avoid collisions on wireless networks, ________was invented.

  • CSMA/CA
  • CSMA/CD
  • either (a) or (b)
  • both (a) and (b)

8. In _______, collisions are avoided through the use of three strategies: the interframe space, the contention window, and acknowledgments.

  • CSMA/CA
  • CSMA/CD
  • either (a) or (b)
  • both (a) and (b)

9. In _______ methods, the stations consult one another to find which station has the right to send

  • random access
  • controlled access
  • channelization
  • none of the above

10. In _______ methods, a station cannot send unless it has been authorized by other stations.

  • random access
  • controlled access
  • channelization
  • none of the above
  • two
  • three
  • four
  • none of the above

12. In the ________ method, a station needs to make a reservation before sending data. Time is divided into intervals.

  • reservation
  • polling
  • token passing
  • none of the above

13. In the _____ method, time is divided into intervals. In each interval, a reservation frame precedes the data frames sent in that interval.

  • reservation
  • polling
  • token passing
  • none of the above

14. In the ______ method, all data exchanges must be made through the primary device even when the ultimate destination is a secondary device.

  • reservation
  • polling
  • token passing
  • none of the above

15. In the _______ method, the primary device controls the link; the secondary devices follow its instructions.

  • reservation
  • polling
  • token passing
  • none of the above

16. In the _______ method, the stations in a network are organized in a logical ring.

  • reservation
  • polling
  • token passing
  • none of the above

17. In the _______ method, each station has a predecessor and a successor

  • reservation
  • polling
  • token passing
  • none of the above

18. In the _________ method, a special packet called a ______ circulates through the ring.

  • reservation: control frame
  • polling: poll request
  • token passing: token
  • none of the above
  • Random access
  • Controlled access
  • Channelization
  • none of the above

20. We discussed ________ channelization protocols

  • two
  • three
  • four
  • none of the above

21. In ________, the available bandwidth is divided into frequency bands.

  • FDMA
  • TDMA
  • CDMA
  • none of the above

22. In ______, each station is allocated a band to send its data. In other words, each band is reserved for a specific station, and it belongs to the station all the time.

  • FDMA
  • TDMA
  • CDMA
  • none of the above

23. In _______, the stations share the bandwidth of the channel in time.

  • FDMA
  • TDMA
  • CDMA
  • none of the above

24. In _____, each station is allocated a time slot during which it can send data. Each station transmits its data in its assigned time slot.

  • FDMA
  • TDMA
  • CDMA
  • none of the above

25. In _____, each station transmits its data in its assigned time slot

  • FDMA
  • TDMA
  • CDMA
  • none of the above

26. In ________ each station sends a frame whenever it has a frame to send.

  • pure ALOHA
  • slotted ALOHA
  • both (a) and (b)
  • neither (a) nor (b)

27. In ______, the stations use different codes to achieve multiple access.

  • FDMA
  • TDMA
  • CDMA
  • none of the above

28. In pure ALOHA, the vulnerable time is ______ the frame transmission time.

  • the same as
  • two times
  • three times
  • none of the above

29. _______ is based on coding theory and uses sequences of numbers called chips

  • FDMA
  • TDMA
  • CDMA
  • none of the above

30. The maximum throughput for pure ALOHA is ________ per cent.

  • 12.2
  • 18.4
  • 36.8
  • none of the above

31. In _______, the sequences are generated using orthogonal codes such the Walsh tables

  • FDMA
  • TDMA
  • CDMA
  • none of the above

32. In __________, each station is forced to send only at the beginning of the time slot

  • pure ALOHA
  • slotted ALOHA
  • both (a) and (b)
  • neither (a) nor (b)

33. In slotted ALOHA, the vulnerable time is ______ the frame transmission time.

  • the same as
  • two times
  • three times
  • none of the above

34. The maximum throughput for pure ALOHA is ________ per cent.

  • 12.2
  • 18.4
  • 36.8
  • none of the above

35. The vulnerable time for CSMA is the ________propagation time.

  • the same as
  • two times
  • three times
  • none of the above

36. In the _________ method, after the station finds the line idle, it sends its frame immediately. If the line is not idle, it continuously senses the line until it finds it idle.

  • nonpersistent
  • 1-persistent
  • p-persistent
  • none of the above

37. In the ________method, a station that has a frame to send senses the line. If the line is idle, it sends immediately. If the line is not idle, it waits a random amount of time and then senses the line again.

  • nonpersistent
  • 1-persistent
  • p-persistent
  • none of the above

38. In the _______method, after the station finds the line idle it sends or refrain from sending based on the outcome of a random number generator. If the line is busy, it tries again

  • nonpersistent
  • 1-persistent
  • p-persistent
  • none of the above
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