IBPS IT SO Study material- Computer Networks-Wireless LAN

IBPS IT SO Study material- Computer Networks

Wireless LAN

1. What is the access point (AP) in wireless LAN?
a) device that allows wireless devices to connect to a wired network
b) wireless devices itself
c) both (a) and (b)
d) none of the mentioned

Answer:a
Explanation:None.

2. In wireless ad-hoc network
a) access point is not required
b) access point is must
c) nodes are not required
d) none of the mentioned

Answer:a
Explanation:None.

3. Which multiple access technique is used by IEEE 802.11 standard for wireless LAN?
a) CDMA
b) CSMA/CA
c) ALOHA
d) none of the mentioned

Answer:b
Explanation:None.

4. In wireless distribution system
a) multiple access point are inter-connected with each other
b) there is no access point
c) only one access point exists
d) none of the mentioned

Answer:a
Explanation:None.

5. A wireless network interface controller can work in
a) infrastructure mode
b) ad-hoc mode
c) both (a) and (b)
d) none of the mentioned

Answer:c
Explanation:In infrastructure mode WNIC needs access point but in ad-hoc mode access point is not required.

6. In wireless network an extended service set is a set of
a) connected basic service sets
b) all stations
c) all access points
d) none of the mentioned

Answer:a
Explanation:None.

7. Mostly ________ is used in wireless LAN.
a) time division multiplexing
b) orthogonal frequency division multiplexing
c) space division multiplexing
d) none of the mentioned

Answer:b
Explanation:None.

8. Which one of the following event is not possible in wireless LAN.
a) collision detection
b) Acknowledgement of data frames
c) multi-mode data transmission
d) none of the mentioned

Answer:a
Explanation:None.

9. What is Wired Equivalent Privacy (WEP) ?
a) security algorithm for ethernet
b) security algorithm for wireless networks
c) security algorithm for usb communication
d) none of the mentioned

Answer:b
Explanation:None.

10. What is WPA?
a) wi-fi protected access
b) wired protected access
c) wired process access
d) wi-fi process access

Answer:a
Explanation:None.

All the best for your exams @Mission IT SO 2016