Wireless LAN - Computer Networks Questions and Answers
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 these
Answer: Option 'A'
device that allows wireless devices to connect to a wired network
2.
Which multiple access technique is used by IEEE 802.11 standard for wireless LAN?
A.)
CDMA
B.)
CSMA/CA
C.)
ALOHA
D.)
none of these
Answer: Option 'B'
CSMA/CA
3.
In wireless ad-hoc network
A.)
access point is not required
B.)
nodes are not required
C.)
access point is must
D.)
none of these
Answer: Option 'A'
access point is not required
4.
In wireless distribution system
A.)
there is no access point
B.)
only one access point exists
C.)
multiple access point are inter-connected with each other
D.)
none of these
Answer: Option 'C'
multiple access point are inter-connected with each other
5.
In wireless network an extended service set is a set of
A.)
all stations
B.)
connected basic service sets
C.)
all access points
D.)
none of these
Answer: Option 'B'
connected basic service sets
6.
A wireless network interface controller can work in
A.)
infrastructure mode
B.)
ad-hoc mode
C.)
both (a) and (b)
D.)
none of these
Answer: Option 'C'
both (a) and (b)
7.
Mostly ________ is used in wireless LAN.
A.)
time division multiplexing
B.)
orthogonal frequency division multiplexing
C.)
space division multiplexing
D.)
none of these
Answer: Option 'B'
orthogonal frequency division multiplexing
8.
What is WPA?
A.)
wired protected access
B.)
wi-fi protected access
C.)
wired process access
D.)
wi-fi process access
Answer: Option 'B'
wi-fi protected access
9.
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 these
Answer: Option 'A'
collision detection
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10.
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 these
Answer: Option 'B'
security algorithm for wireless networks
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