最新的HCIA-WLAN認證 H12-311_V3.0考試題庫

問題1

802.11n Standard uses dual band (2.4GHz and 5GHz ), the theoretical transmission rate can reach up to 300Mbps, The actual test rate can reach arrive 100Mbps above.

A. False

B. True

正確答案: A

問題2

2.4 GHz What is the frequency band US non-overlapping channel ()?

A. 3,8,13

B. 1,6,11

C. 3,7,13

D. 2,7,12

正確答案: B

問題3

DSSS The modulation methods used are BPSK and QPSK .

A. False

B. True

正確答案: B

問題4

AC Perform the load balancing process according to () information.

A. AP Periodically to AC Send its associated STA Information

B. AC Timed query AP Associated STA number

C. STA Periodically search the surrounding AP Information and through association AP Report AP Logo

D. STA Periodically report the current associated AP Logo

正確答案: D

問題5

BSS Which two basic service sets are included ()? (Select 2 Answers)

A. Extend the basic service set of structural mode

B. Basic Service Set of Infrastructure Mode

C. Extend the basic service set

D. Independent basic service set

正確答案: B,D

問題6

Each AC Equipment needs to be specified AC The source of IP Address for peace AP Establish CAPWAP Tunnel, one AC You can specify up to 2 Piece WLAN source IP.

A. False

B. True

正確答案: A

問題7

about 5G The working principle of priority, the following statement is correct ().

A. 5G Priority characteristics refer to 5G Client sends data first

B. 5G Priority requires all clients to support at the same time

C. 5G Priority request AP Is dual frequency AP Can work normally

D. 5G After the priority is turned on, only support 2.4G The network transmission speed of the client will be slower

正確答案: C

說明：（僅 VCESoft 成員可見）

問題8

Regarding the networking mode, the following description is correct ().

A. The advantage of the three-layer network is simple configuration and easy networking

B. In a direct-connected network, AP Business data can not go through AC And directly reach the upstream network

C. Compared with the three-layer network, the two-layer network is more suitable for large-scale networks such as parks and stadiums.

D. if AC The ability to process data is relatively weak, it is recommended to use bypass networking

正確答案: D

問題9

Which of the following commands can be viewed AC Current configuration()?

A. display version

B. display current-configuration

C. display ap all

D. display interface

正確答案: B

問題10

In a dual-link backup network, AP According to what distinguishes the main use AC And spare AC of()?
(Select 3 Answers)

A. AC Load condition

B. priority

C. AC of IP address

D. AC response AP Time of day

正確答案: A,B,C

問題11

The following about SSID The statement is wrong ().

A. One AP Can release the same SSID Signal

B. One AP Configurable SSID There is no limit to the number

C. Multiple AP Can release the same one on SSID

D. One AP Can release multiple different SSID

正確答案: B

問題12

for AC6605 , The following command () can be used to view AP Is it online?

A. dispay ap-run-info all

B. display ap-type all

C. display ap all

D. display ap online all

正確答案: C

問題13

802.11b Support () channels in the United States, among which () channels do not overlap?

A. 14 ; 6

B. 11 ; 6

C. 14 ; 3

D. 11; 3

正確答案: D

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