1181. In wireless distribution system :

A. Multiple access point are interconnected with each other *
B. There is no access point
C. Only one access point exists
D. None of the mentioned

1182. 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

1183. 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

1184. Mostly_________ is used in wireless LAN :

A. Time division multiplexing
B. Orthogonal frequency division multiplexing *
C. Space division multiplexing
D. None of the mentioned

1185. 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

1186. 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

1187. What is WPA ?

A. WI-FI protected access *
B. Wired protected access
C. Wired process access
D. WI-FI process access

1188. Which of these does not constitute guided media?

A. Fiber optical cable
B. Coaxial cable
C. Wireless LAN *
D. Copper wire

1189. UTP is commonly used in :

A. DSL *
B. FTTP
C. HTTP
D. None of the mentioned

1190. Coaxial cable consists of __________ concentric copper conductors :

A. 1
B. 2 *
C. 3
D. 4