Question 1

You are evaluating access points for use in the 5 GHZ frequency band. What PHY supports this band and supports 80 MHz channels?

Options :

A : HT

B : VHT

C : OFDM

D : ERP

Answer: B

Question 2

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 3

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 4

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 5

Which unit of measure is used to compare antennas to a dipole antenna?

Options :

A : mDw

B : mW

C : dBi

D : dBd

Answer: D

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