Wireless LANs MCQs - Data Communication and Networking

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

This Section covers below lists of topics.

Ethernet MCQs.
IEEE 802.3 standard MCQs.
LLC sublayer and the MAC sublayer MCQs.
10Base5 (thick Ethernet), 10Base2 (thin Ethernet), 10Base-T (twisted-pair Ethernet), and 10Base-FL (fiber link Ethernet) MCQs.
Fast Ethernet MCQs.
Common Fast Ethernet implementations , 100Base-TX (two pairs of twisted-pair cable), 100Base-FX (two fiber-optic cables), and 100Base-T4 (four pairs of voice-grade, or higher, twisted-pair cable) MCQs.
Gigabit Ethernet MCQs.
common Gigabit Ethernet implementations , 1000Base-SX (two optical fibers and a shortwave laser source), 100Base-LX (two optical fibers and a long-wave laser source), and 100Base-T (four twisted pairs) MCQs.

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

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

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

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

4. The IEEE 802.11 standard for wireless LANs defines two services: and _

BSS; ASS
ESS; SSS
BSS; ESS
BSS; DCF

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

ALOHA
CSMA/CA
CSMA/CD
none of the above

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

contention
controlled
polling
none of the above

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

NAV
BSS
ESS
none of the above

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

four
five
six
none of the above

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

four
five
six
none of the above

10. The original IEEE 802.11, uses _________

FHSS
DSSS
OFDM
either (a) or (b)

11. The IEEE 802.11a, uses _________

FHSS
DSSS
OFDM
either (a) or (b)

12. The IEEE 802.11b, uses _________

FHSS
DSSS
OFDM
either (a) or (b)

13. The IEEE 802.11g, uses _________

FHSS
DSSS
OFDM
either (a) or (b)

14. The original IEEE 802.11, has a data rate of _____Mbps.

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

1
2
6
none of the above

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

1
2
5.5
none of the above

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

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

four
five
six
none of the above

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

wired LAN
wireless LAN
VLAN
none of the above

20. A Bluetooth network is called a ________.

piconet
scatternet
bluenet
none of the above

21. In Bluetooth, multiple form a network called a _

scatternet; piconets
piconets: scatternet
piconets: bluenet
bluenet; scatternet

22. A Bluetooth network consists of _ primary device(s) and up to secondary devices.

one; five
five; three
two; six
one; seven

23. 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.

can; cannot
cannot; can
can; can
cannot; cannot

24. In Bluetooth, the current data rate is ____Mbps

2
5
11
none of the above

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

radio
baseband
L2CAP
none of the above

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

radio
baseband
L2CAP
none of the above

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

radio
baseband
L2CAP
none of the above

28. The access method in Bluetooth is ________

FDMA
TDD-TDMA
CDMA
none of the above

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

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

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

IEEE 802.3
IEEE 802.5
IEEE 802.11
IEEE 802.2

32. 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).

ESS
BSS
CSS
none of the above

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

an ad hoc architecture
an infrastructure network
either (a) or (b)
neither (a) nor (b)

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

an ad hoc architecture
an infrastructure network
either (a) or (b)
neither (a) nor (b)

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

BSSs
ESSs
APs
none of the above

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

no-transition
BSS-transition
ESS-transition
none of the above

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

no-transition
BSS-transition
ESS-transition
none of the above

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

no-transition
BSS-transition
ESS-transition
none of the above

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

DCF
PCF
either (a) or (b)
neither (a) nor (b)

40. 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 _____

Data Communication and Networking – Wireless LANs MCQs