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Q:

A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless card. The client section of the access point does not list any active WLAN clients. What is a possible reason for this?

A) The incorrect channel is configured on the client B) The Client's IP address is on the wrong subnet
C) The client has an incorrect pre-shared key D) The SSID is configured incorrectly on the client
 
Answer & Explanation Answer: D) The SSID is configured incorrectly on the client

Explanation:

Although this question is cryptic at best, the only possible answer is option D. If the  SSID is not being broadcast (which we must assume in this question), the client must be configured with the correct SSID in order to associate to the AP.

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Q:

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

A) 6Mbps B) 11Mbps
C) 22Mbps D) 54Mbps
 
Answer & Explanation Answer: D) 54Mbps

Explanation:

The IEEE 802.11g standard provides a maximum data rate of up to 54Mbps.

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Q:

How many non- overlapping channels are available with 802.11b?

A) 3 B) 12
C) 23 D) 40
 
Answer & Explanation Answer: A) 3

Explanation:

The IEEE 802.11b standard provides three non-overlapping channels.

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Q:

Which encryption type does WPA2 use?

A) AES - CCMP B) PPK via IV
C) PSK D) TKIP/MIC
 
Answer & Explanation Answer: A) AES - CCMP

Explanation:

WPA2 uses AES-CCMP for encryption. WPA uses TKIP

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Q:

You have finished physically installing an access point on the ceiling of your office. At a minimum, which parameter must be configured on the access point in order to allow a wireless client to operate on it?

A) AES B) PSK
C) SSID D) WEp
 
Answer & Explanation Answer: C) SSID

Explanation:

The minimum parameter configured on an AP for a simple WLAN installation is the SSID, although you should set the channel and authntication method as well.

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Q:

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

A) 2.4 Gbps B) 5Gbps
C) 2.4GHz D) 5GHz
 
Answer & Explanation Answer: C) 2.4GHz

Explanation:

The IEEE 802.11b and IEEE 802.11g standards both run in the 2.4GHz RF range.

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Q:

In thefollowing output, what type of NAT is being used?

ip nat pool todd-nat 170.168.10,10 170.168.10.20 netmask 255.255.255.0

Answer

Dynamic NAT

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Q:

What type of address translation can use only one address to allow thousands of hosts to be translated globally?

Answer

Port Address Translation (PAT), also called NAT Overload

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