H12-311試験無料問題集（300題）「Huawei Certified ICT Associate-Wireless Local Area Network 認定」

出題：1

In an 802.11 frame, the terminal needs to obtain access rights to the wireless medium, and what kind of control message is to be sent?

A. PS-Poll

B. ACK

C. CTS

D. RTS

正解：D 解答を投票する

出題：2

AP transmit power 20dBm, antenna gain 4dBi, cable and device loss 1dB, terminal receive antenna gain 2dBi, spatial propagation loss 80dB, terminal receive level RSSI=.

A. -57

B. -54

C. -55

D. -56

正解：D 解答を投票する

出題：3

In a large-scale wireless network deployment scenario, when the AC is configured as "Layer 3 Networking + Side-by-Side Mode + Direct Forwarding", where should the wireless user's gateway be located?

A. Convergence layer on the Layer 3 switch

B. AC on the

C. One-arm router on the

D. AP

正解：A 解答を投票する

出題：4

If an 802.11n AP supports 2*2 MIMO technology, what is the theoretical rate of this AP?

A. 150 Mbps

B. 600 Mbps

C. 300 Mbps

D. 450 Mbps

正解：C 解答を投票する

出題：5

Which of the following options are EDCA parameters (Select 2 Answers)?

A. TXOPLimit

B. DIFS

C. SIFS

D. AIFSN

正解：A,D 解答を投票する

出題：6

Among the following options, it is not the main purpose of roaming.

A. Ensure that the user's network rate is unchanged.

B. Ensure user authorization information remains unchanged.

C. Avoid excessive authentication time during roaming, resulting in packet loss or even service interruption.

D. Ensure that the user's IP address is unchanged.

正解：A 解答を投票する

出題：7

What are the following WLAN standards for transmission rates up to 54 Mbps and above (Select 3 Answers)?

A. 802.11b

B. 802.11n

C. 802.11a

D. 802.11g

正解：B,C,D 解答を投票する

出題：8

For shared key authentication, the following description is wrong.

A. After using shared key authentication, WEP encryption must be used.

B. The disadvantage of shared key is that it is not scalable and not very secure.

C. Shared key requires the user and AP to use the same shared key

D. For thin APs, the shared key is preset in the AC.

正解：D 解答を投票する

出題：9

In Huawei eSight, the method of adding WLAN devices includes (Select 3 Answers).

A. Add script

B. Add manually

C. Add automatically

D. Add in batches

正解：B,C,D 解答を投票する

出題：10

Which of the following is included in the 82.802.11 WLAN CSMA/CA mechanism (Select 3 Answers)?

A. Conflict Avoidance

B. Multiple Access

C. Carrier Sense

D. Conflict Detection

正解：A,B,C 解答を投票する

出題：11

What is the command to check online users on the AC?

A. display access-user

B. display users all

C. display user-interface console 0

D. display local-user

正解：A 解答を投票する

出題：12

There are three types of Huawei load balancing judgment: traffic mode, session mode, and virtual switch mode.

A. True

B. False

正解：B 解答を投票する

出題：13

The 802.11n standard uses dual-band (2.4 GHz and 5 GHz), the theoretical transmission rate can reach up to 300 Mbps, and the actual test rate can reach more than 100 Mbps.

A. True

B. False

正解：B 解答を投票する

出題：14

How many channels does China support in the 2.4 GHz band?

A. 11

B. 13

C. 5

D. 3

正解：B 解答を投票する

出題：15

Which configuration methods does the wireless controller support (Select 3 Answers)?

A. LLDP configuration

B. telnet configuration

C. console port configuration

D. eSight configuration

正解：B,C,D 解答を投票する

出題：16

Which of the following is a wireless LAN standard originally developed by the IEEE?

A. IEEE 802.10

B. IEEE 802.12

C. IEEE 802.11

D. IEEE 802.16

正解：C 解答を投票する

出題：17

If a BSS is composed entirely of STAs, what is the BSS also called?

A. ESS

B. BSA

C. SSID

D. IBSS

正解：D 解答を投票する

H12-311試験無料問題集「Huawei Certified ICT Associate-Wireless Local Area Network 認定」