Users report that the 802.11n wireless network is extremely slow. The network administrator
suspects that the problem is occurring because of a hidden node.
Which mechanism is a solution for this problem?
A.
Short Guard Interval (SGI)
B.
Reduced Inter-Frame Spacing (RIFS)
C.
CTS-to-Self
D.
Carrier sense multiple access with collision avoidance (CSMA/CA)
D
The Real answer to this would be using RTS/CTS. Which is actually an implementation of
Carrier sense multiple access with collision avoidance (CSMA/CA)
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Did u mean C,
When an AP is operating in an 802.11n mode, and legacy (a/b/g) traffic is present on the same
channel as 802.11n traffic, this feature can be used to ensure maximum 802.11n throughput.
The following options are available:
• CTS-to-self: 802.11n transmissions are protected by sending a Clear To Send (
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Actually the hidden node problem arises especially when using CTS-to-Self.
I believe CTS-to-Self is definitely not the answer, I’m not sure about options A,B.
RTS/CTS is the solution for hidden nodes, it is part of CSMA/CA and I believe the closest answer is D although I honestly think this question is written in a bad way.
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“D” is correct
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