최신 H12-311_V3.0 무료덤프 - Huawei HCIA-WLAN V3.0

문제1

BSS Full name Basic Service Set ,BSS It can be divided Independent BSS and Infrastructure BSS Two kinds.

A. True

B. False

정답: A

문제2

exist 802.11 In the frame, which type of message is used by the terminal to receive data packets in the power-saving mode?

A. PS-Poll

B. RTS

C. CTS

D. ACK

정답: C

문제3

802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM for short) technology

A. True

B. False

정답: B

문제4

The following about SSID The statement is wrong ().

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

B. Multiple AP Can release the same one on SSID

C. One AP Can release the same SSID Signal

D. One AP Can release multiple different SSID

정답: A

문제5

pass through FTP Way to upgrade AP, You need to ensure AP and FTP Servers can communicate with each other, and AP Put the upgrade file in FTP Root directory.

A. True

B. False

정답: A

문제6

For the following WLAN networking configuration, which statement is correct ().
(Select 3 Answers)

A. The WMM template is bound to the RF template

B. Before sending the configuration to the AP, the AP must be online

C. Configure the WMM template can be directly bound to the antenna

D. The user tries his best to ensure that the planning data is detailed when planning the data, which will greatly facilitate the later configuration

정답: A,B,D

문제7

In theory, the network cable used in the project cannot exceed ()rice.

A. 80

B. 50

C. 100

D. 150

정답: A

문제8

Which of the following statements are true about a typical AP group?

A. With factory defaults, all APs belong to the AP group named default.

B. APs in the same AP group can be uniformly scheduled using the same security policy.

C. To optimize roaming, an AP can be added to two AP groups at the same time.

D. SSIDs can be configured for APs in the same AP group in a unified manner.

정답: A,B,D

문제9

The 802.11 physical layer standard defines some common operations on the physical layer of wireless networks: such as QoS, security, and roaming operations.

A. True

B. False

정답: B

문제10

display ap all Command can be viewed AP of MAC ,Type And running status.

A. True

B. False

정답: A

문제11

Which of the following 2.4GHz The frequency bands are non-overlapping
channels (). (Select 3 Answers)

A. 4 and 8

B. 4 and 10

C. 3 and 8

D. 6 and 11

정답: B,C,D

문제12

because 802.11a The maximum rate supported is the same as 802.11g. The maximum rate supported is the same, so 802.11a Protocol is backward compatible 802.11g Agreement.

A. True

B. False

정답: B

문제13

A large number of devices appear AP and AC How to deal with the version mismatch failure ().

A. an examination POE Is the power supply normal

B. Replace the switch

C. Upgrade the versions to match each other

D. replace AP equipment

정답: C

문제14

For protection WLAN Security, which of the following measures can be taken? (Select 3 Answers)

A. Control flow

B. Authentication

C. System protection

D. encryption

정답: B,C,D

문제15

dBm is a unit for measuring signal strength, and this can be converted into a value in mW. Which of the following unit conversions are true?

A. 3 dBm = 2 mW

B. 10 dBm = 20 mW

C. 0 dBm = 1 mW

D. 3 dBm = 3 mW

정답: C

문제16

WLAN What are the working frequency bands ()? (Select 2 Answers)

A. 2 GHz

B. 5 GHz

C. 2.4 GHz

D. 5.4 GHz

정답: B,C

문제17

The following description of TKIP encryption is wrong ().

A. TKIP encryption adds the mechanism of Key generation, management and transmission

B. The length of IV used in TKIP encryption is 24 bits

C. The motivation for developing TKIP encryption is to upgrade the security of the old WEP hardware

D. TKIP encryption uses the same encryption algorithm as WEP encryption

정답: B

문제18

Which of the following wireless frames are control frames ()? (Select 3 Answers)

A. PS-Poll

B. Beacon

C. RTS

D. CTS

정답: A,B,D

문제19

Which of the following statements is true about the coverage distance design principles of a single AP (20 dBm)?

A. In an open area, the coverage distance is designed based on the AP's coverage capability.

B. In the same scenario, the coverage distance of a 2.4 GHz AP is smaller than that of a 5.8 GHz AP.

C. It is recommended that a 5.8 GHz AP be deployed for through-wall signal coverage.

D. Inter-floor coverage is supported.

정답: A

최신 H12-311_V3.0 무료덤프 - Huawei HCIA-WLAN V3.0

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