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Forouzan: MCQ in Wireless LAN

Forouzan: MCQ in Wireless LANs

This is the MCQ in Wireless LANs from the book 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 Wireless LANs, the newest evolution in LAN technology. This chapter discuss the two promising wireless technologies for LANs: IEEE 802.11 wireless LANs, sometimes called wireless Ethernet, and Bluetooth, a technology for small wireless LANs. If you skip the summary visit Wireless LANs .
Watch Audio MCQ in Wireless LAN

Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. The original IEEE 802.11, has a data rate of ________ Mbps.

A)   11

B)   22

C)   6

D)   1

View Answer:

Answer: Option D

Solution:

2. In IEEE 802.11, when a frame is going from a station to an AP, the address flag is _____.

A)   01

B)   10

C)   11

D)   00

View Answer:

Answer: Option B

Solution:

3. In IEEE 802.11, when a frame is going from one station in a BSS to another without passing through the distribution system, the address flag is _________.

A)   11

B)   00

C)   10

D)   01

View Answer:

Answer: Option B

Solution:

4. In IEEE 802.11, the access method used in the PCF sublayer is ______.

A)   polling

B)   controlled

C)   contention

D)   none of the above

View Answer:

Answer: Option A

Solution:

5. In IEEE 802.11, a BSS without an AP is called an _________.

A)   an infrastructure network

B)   an ad hoc architecture

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option B

Solution:

6. In IEEE 802.11, the addressing mechanism can include up to ______addresses.

A)   six

B)   five

C)   four

D)   none of the above

View Answer:

Answer: Option C

Solution:

7. In Bluetooth, the _______ layer is roughly equivalent to the physical layer of the Internet model.

A)   baseband

B)   radio

C)   L2CAP

D)   none of the above

View Answer:

Answer: Option B

Solution:

8. In IEEE 802.11, a station with ________ mobility is either stationary (not moving) or moving only inside a BSS.

A)   ESS-transition

B)   no-transition

C)   BSS-transition

D)   none of the above

View Answer:

Answer: Option B

Solution:

9. In Bluetooth, the L2CAP sublayer, is roughly equivalent to the LLC sublayer in LANs.

A)   baseband

B)   L2CAP

C)   radio

D)   none of the above

View Answer:

Answer: Option B

Solution:

10. In IEEE 802.11, when a frame is going from one AP to another AP in a wireless distribution system, the address flag is _____.

A)   10

B)   01

C)   11

D)   00

View Answer:

Answer: Option C

Solution:

11. A Bluetooth network is called a ________.

A)   scatternet

B)   bluenet

C)   piconet

D)   none of the above

View Answer:

Answer: Option C

Solution:

12. A Bluetooth network consists of _____ primary device(s) and up to ____ secondary devices.

A)   one; seven

B)   one; five

C)   five; three

D)   two; six

View Answer:

Answer: Option A

Solution:

13. In Bluetooth, the current data rate is ____Mbps.

A)   11

B)   5

C)   2

D)   none of the above

View Answer:

Answer: Option D

Solution:

14. In IEEE 802.11, a BSS with an AP is sometimes referred to as ____________.

A)   an infrastructure network

B)   an ad hoc architecture

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option A

Solution:

15. In IEEE 802.11, the ______ is a timer used for collision avoidance.

A)   BSS

B)   ESS

C)   NAV

D)   none of the above

View Answer:

Answer: Option C

Solution:

16. In IEEE 802.11, the MAC layer frame has ______ fields.

A)   four

B)   six

C)   five

D)   none of the above

View Answer:

Answer: Option D

Solution:

17. Bluetooth uses ______method in the physical layer to avoid interference from other devices or other networks.

A)   FHSS

B)   DSSS

C)   FDMA

D)   none of the above

View Answer:

Answer: Option A

Solution:

18. In Bluetooth, the _____ link is used when data integrity is more important than avoiding latency.

A)   SCL

B)   ACO

C)   ACL

D)   SCO

View Answer:

Answer: Option C

Solution:

19. In Bluetooth, the _____layer is roughly equivalent to the MAC sublayer in LANs.

A)   L2CAP

B)   radio

C)   baseband

D)   none of the above

View Answer:

Answer: Option C

Solution:

20. IEEE has defined the specifications for a wireless LAN, called _______, which covers the physical and data link layers.

A)   IEEE 802.5

B)   IEEE 802.11

C)   IEEE 802.2

D)   IEEE 802.3

View Answer:

Answer: Option B

Solution:

21. In IEEE 802.11, a station with ________ mobility can move from one ESS to another.

A)   BSS-transition

B)   ESS-transition

C)   no-transition

D)   none of the above

View Answer:

Answer: Option B

Solution:

22. The IEEE 802.11g, uses _________.

A)   DSSS

B)   OFDM

C)   FHSS

D)   either (a) or (c)

View Answer:

Answer: Option B

Solution:

23. In IEEE 802.11, the access method used in the DCF sublayer is _________.

A)   CSMA/CA

B)   CSMA/CD

C)   ALOHA

D)   none of the above

View Answer:

Answer: Option A

Solution:

24. The RTS and CTS frames in CSMA/CA ____ solve the hidden station problem. The RTS and CTS frames in CSMA/CA ____ solve the exposed station problem.

A)   cannot; cannot

B)   can; cannot

C)   cannot; can

D)   can; can

View Answer:

Answer: Option B

Solution:

25. In IEEE 802.11, communication between two stations in two different BSSs usually occurs via two ________.

A)   ESSs

B)   APs

C)   BSSs

D)   none of the above

View Answer:

Answer: Option B

Solution:

26. Bluetooth is a _______ technology that connects devices (called gadgets) in a small area.

A)   VLAN

B)   wired LAN

C)   wireless LAN

D)   none of the above

View Answer:

Answer: Option C

Solution:

27. The original IEEE 802.11, uses _________.

A)   FHSS

B)   OFDM

C)   DSSS

D)   either (a) or (c)

View Answer:

Answer: Option D

Solution:

28. The IEEE 802.11a, uses _________.

A)   DSSS

B)   OFDM

C)   FHSS

D)   either (a) or (c)

View Answer:

Answer: Option B

Solution:

29. In IEEE 802.11, a ___ is made of stationary or mobile wireless stations and an optional central base station, known as the access point (AP).

A)   BSS

B)   CSS

C)   ESS

D)   none of the above

View Answer:

Answer: Option A

Solution:

30. The IEEE 802.11 standard for wireless LANs defines two services: ______ and _______.

A)   ESS; SSS

B)   BSS; ESS

C)   BSS; ASS

D)   BSS; DCF

View Answer:

Answer: Option B

Solution:

31. In Bluetooth, the _____ link is used when avoiding latency (delay in data delivery) is more important than integrity (error-free delivery).

A)   SCL

B)   ACL

C)   ACO

D)   SCO

View Answer:

Answer: Option D

Solution:

32. IEEE 802.11b, has a data rate of _____Mbps.

A)   5.5

B)   2

C)   1

D)   none of the above

View Answer:

Answer: Option A

Solution:

33. IEEE 802.11g, has a data rate of _____Mbps.

A)   22

B)   11

C)   2

D)   1

View Answer:

Answer: Option A

Solution:

34. In IEEE 802.11, a station with ________mobility can move from one BSS to another, but the movement is confined inside one ESS.

A)   ESS-transition

B)   no-transition

C)   BSS-transition

D)   none of the above

View Answer:

Answer: Option C

Solution:

35. The access method in Bluetooth is ________.

A)   TDD-TDMA

B)   CDMA

C)   FDMA

D)   none of the above

View Answer:

Answer: Option A

Solution:

36. The IEEE 802.11 wireless LANs use ________ types of frames.

A)   five

B)   six

C)   four

D)   none of the above

View Answer:

Answer: Option D

Solution:

37. In IEEE 802.11, _______ is an optional access method that can be implemented in an infrastructure network (not in an ad hoc network).

A)   PCF

B)   DCF

C)   either (a) or (b)

D)   neither (a) nor (b)

View Answer:

Answer: Option A

Solution:

38. In IEEE 802.11, when a frame is coming from an AP and going to a station, the address flag is _______.

A)   00

B)   11

C)   10

D)   01

View Answer:

Answer: Option D

Solution:

39. In Bluetooth, multiple ________ form a network called a _________.

A)   piconets: bluenet

B)   scatternet; piconets

C)   piconets: scatternet

D)   bluenet; scatternet

View Answer:

Answer: Option C

Solution:

40. The IEEE 802.11b, uses _________.

A)   OFDM

B)   FHSS

C)   DSSS

D)   either (a) or (b)

View Answer:

Answer: Option C

Solution:

41. IEEE 802.11a, has a data rate of _____Mbps.

A)   6

B)   2

C)   1

D)   none of the above

View Answer:

Answer: Option A

Solution:

Complete List of Chapter Quiz in Data Communications and Networking

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