Question 1

What is the range of connectivity between NFC devices?

Options :

A : 25 cm

B : 10 cm

C : 50 cm

D : 1 cm

Answer: B

Question 2

In a long-distance RF link, which statement about Fade Margin is true?

Options :

A : The Fade Margin of a long-distance radio link should be equivalent to the receiver’s low noise filter gain.

B : A Fade Margin is unnecessary on a long-distance RF link if more than 80%

C : Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading

D : The Fade Margin is a measurement of signal loss through free space and is a function of frequency and distance

Answer: C

Question 3

Which statement correctly describes an ad hoc wireless network?

Options :

A : It is referred to as an IBSS.

B : It has a maximum connectivity range of 1000 meters.

C : It requires an AP.

D : It uses multiple wireless frequencies.

Answer: A

Question 4

You are configuring an access point to use channel 128. What important fact should be considered about this channel?

Options :

A : It is a channel that is unsupported by most access points

B : It is a 22 MHz channel so it will overlap with the channels above and below it

C : It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used

D : It is a channel that likely requires DFS when used

Answer: D

Question 5

You are installing an AP to be used by 23 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?

Options :

A : A 5 GHz channel, because channels 1 and 6 are 2.4 GHz channels they have no impact on the decision

B : Channel 1, because it is best to use the channel with the lowest frequency

C : Channel 11, because channels 1 and 6 are in use nearby

D : Channel 6, because it is always best to use this channel

Answer: A

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