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HCIA-WLAN H12-311_V3.0 Book

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Total 338 questions
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HCIA-WLAN V3.0 Questions and Answers

Question 57

802.11 There are three frame types, namely (). (Select 3 Answers)

Options:

A.

Data Frame

B.

Control frame

C.

Business frame

D.

Management frame

Question 58

exist 1 Floor deployment 3 Piece AP, The channels from left to right are 1,6,11, At this time 2 Floor deployment 3 Piece AP Channel should be be divided into( ).

Options:

A.

1 ,6,11

B.

2 ,7,12

C.

6 ,11,1

D.

11 ,6,1

Question 59

The two commonly used units to describe antenna gain are dBi and dBd , The conversion relationship between them is: dBi=dBd+2.14 .

Options:

A.

True

B.

False

Question 60

In the following description of WEP encryption, the error is ().

Options:

A.

WEP encryption uses a stream encryption algorithm

B.

WEP encryption adds IV to destroy the regularity of the key

C.

The length of IV in WEP encryption is 48 bits

D.

WEP encryption allows the device to store four keys at the same time

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Total 338 questions
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