Wireless Technologies Questions and Answers

Q: What is the maximum data rate for the 802.11g standard?

Correct answer: 54Mbps802.11g reaches 54 Mbps, matching 802.11a while staying in the 2.4 GHz band, which is what made it backward compatible with 802.11b equipment. That compatibility has a cost: when a b client associates, the cell falls back to protection mechanisms that reduce throughput for everyone on it.

Q: What is the frequency range of the IEEE 802.11g standard?

Correct answer: 2.4GHz802.11g operates at 2.4 GHz, the same band as 802.11b, which is precisely what allows the two to interoperate in one cell. It therefore inherits the band’s limitations as well - three non-overlapping channels and interference from every other device in the ISM band. Two of the options here are again rates rather than frequencies.

31.

You are connecting your access point and it is set to root. What does Extended Service Set ID mean?

A.That you have more than one access point and they are in the same SSID connected by a distribution system.
B.That you have more than one access point and they are in separate SSIDs connected by a distribution system.
C.That you have multiple access points, but they are placed physically in different buildings.
D.That you have multiple access points, but one is a repeater access point.

Answer: A

Correct answer: That you have more than one access point and they are in the same SSID connected by a distribution system.

An Extended Service Set joins two or more basic service sets under one SSID, linked by a distribution system - usually the wired network. Because the SSID is shared, a client can roam between the access points without reassociating to a different network. Separate SSIDs would be separate networks, and the physical placement of the access points is not what defines the term.

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32.

What is the maximum data rate for the 802.11g standard?

A.6Mbps
B.11Mbps
C.22Mbps
D.54Mbps

Answer: D

Correct answer: 54Mbps

802.11g reaches 54 Mbps, matching 802.11a while staying in the 2.4 GHz band, which is what made it backward compatible with 802.11b equipment. That compatibility has a cost: when a b client associates, the cell falls back to protection mechanisms that reduce throughput for everyone on it.

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33.

What is the frequency range of the IEEE 802.11g standard?

A.2.4Gbps
B.5Gbps
C.2.4GHz
D.5GHz

Answer: C

Correct answer: 2.4GHz

802.11g operates at 2.4 GHz, the same band as 802.11b, which is precisely what allows the two to interoperate in one cell. It therefore inherits the band’s limitations as well - three non-overlapping channels and interference from every other device in the ISM band. Two of the options here are again rates rather than frequencies.

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