NETWORKS 622-COMPUTER SCIENCE

TOPIC 1

EASY QUESTIONS

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

2.  In wireless ad-hoc network a) access point is not required

b)  access point is a must

c)  nodes are not required

d)  none of the mentioned

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

4.  In wireless distribution system

a)  multiple access point is inter-connected with each other

b)  there is no access point

c)  only one access point exists

d)  none of the mentioned

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

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

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

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

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

10.  What is WPA?

a)  Wi-Fi protected access

b)  wired protected access

c)  wired process access

d)  Wi-Fi process access

11.  The advantages of FDMA over TDMA includes

i.  Division is simpler

ii.  Propagation delays are eliminated

iii. Cheaper filters with less complicated logic functions