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H12-311_V3.0 Exam Dumps - HCIA-WLAN V3.0

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Question # 49

for AC+ thin AP The network architecture, the following description is wrong ().

A.

AP Can't work alone, need to be AC Centralized agent maintenance management

B.

able to pass AC Enhance business QoS, Security and other functions

C.

AP Zero configuration itself, suitable for large-scale networking

D.

Must be achieved through the network management system AP And user management

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Question # 50

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

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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Question # 51

Which is the longest interval between 802.11 frames ()?

A.

SIFS

B.

IFS

C.

DIFS

D.

PIFS

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Question # 52

How to set the condition of switching trigger (). (Select 2 Answers)

A.

when STA Yohara AP Start switching after reaching a certain distance

B.

Set current AP With neighbors AP Signal strength ratio, switch when reaching the threshold

C.

Check the packet loss rate and start the handover when the packet loss rate reaches a certain value

D.

Yohara AP Start the switch when the network speed is very slow during association

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Question # 53

802.11 In the frame, STA Which type of frame () does the association request and authentication request belong to?

A.

Data Frame

B.

Control frame

C.

Management frame

D.

Data frame, control frame, management frame have this function

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Question # 54

Which of the following agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)

A.

802.11a/b/g/n

B.

802.11i

C.

802.1X

D.

802.11s

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Question # 55

Which of the following standards organizations implements WLAN technical interoperability for WLAN equipment certification ()?

A.

WiFi

B.

IEEE

C.

IETF

D.

FCC

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Question # 56

an examination AC What is the command for online users ()?

A.

display users all

B.

display user-interface console 0

C.

display local-user

D.

display access-user

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