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

出題：1

In the 802.11 frame, what is the correct correspondence between the Type and the frame format in the Frame Control bit?

A. Type is 00, it means management frame.

B. Type is 01, indicating that the data frame

C. Type is 10, indicating the control frame. When

D. Type is 00, it means reserved. When

正解：A 解答を投票する

出題：2

The CAPWAP protocol is a WLAN standard proposed by the IEEE standards organization in April 2009 for communication between AC and thin APs.

A. True

B. False

正解：B 解答を投票する

出題：3

If the AP wants to obtain the IP address of the AC through the DNS server, first obtain the IP address of its own IP address, DHCP server, and DNS.

A. True

B. False

正解：A 解答を投票する

出題：4

For dBm, dB, dBi, the following description is correct (Select 3 Answers).

A. dB: Characterizing the relative value of power

B. dBi and dBd: characterize the relative value of the gain

C. dBm: characterizes the absolute value of power

D. If the antenna is 12dBi and the antenna is 14dBi, it can be said that A is smaller than 2D.

正解：A,B,C 解答を投票する

出題：5

In the PoE terminology, the PSU is called the Power Supply Unit, which refers to the power supply unit, such as the Ethernet interface of the PoE switch.

A. True

B. False

正解：B 解答を投票する

出題：6

For the CAPWAP protocol, the following description is wrong.

A. Transmission protocol between thin AP and wireless client

B. CAPWAP protocol draws on the useful features of other protocols.

C. Developed by the CAPWAP Working Group The development of the

D. Transmission protocol between AC and thin AP

正解：A 解答を投票する

出題：7

Wireless users with the same user VLAN and the same SSID can access the Internet, but they can't access each other.
What could be the cause of this phenomenon?

A. The ACL is configured on the AC to prevent mutual access between users.

B. The user's gateway device is configured with an ACL to prevent mutual access between users.

C. Port isolation configured on the switch connected to the AP prevents mutual access between users.

D. User isolation is configured on the wireless service-set to prevent mutual access between users.

正解：D 解答を投票する

出題：8

If an enterprise wireless network networking mode is direct forwarding, the thin AP can convert the 802.11 data packet into an Ethernet packet, and then encapsulate the packet into a CAPWAP encapsulation and transmit the data packet to the AC through the CAPWAP tunnel.

A. True

B. False

正解：B 解答を投票する

出題：9

In 1999, the IEEE 802.11a standard was developed. The standard specifies that the WLAN operating frequency band is 5.15 to 5.825 GHz, and the data transmission rate reaches 11 Mbps.

A. True

B. False

正解：B 解答を投票する

出題：10

When configuring a WLAN network, which WQ template should be bound to the following template?

A. radio-profile

B. service-set

C. security-profile

D. traffic-profile

正解：D 解答を投票する

出題：11

Which of the following protocols support the 2.4 GHz band (Select 3 Answers)?

A. 802.11b

B. 802.11n

C. 802.11a

D. 802.11g

正解：A,B,D 解答を投票する

出題：12

The following is a description of TKIP encryption. The error is .

A. TKIP encryption.

B. The motivation for developing TKIP encryption is to upgrade the security of legacy WEP hardware. Added the mechanism of key generation, management and delivery in

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

D. The length of the IV used in A.TKIP encryption is 24bits.

正解：D 解答を投票する

出題：13

If the terminal supports both 5 GHz and 2.4 GHz functions, the AP can be configured to control such terminals to preferentially access 5 GHz.

A. True

B. False

正解：A 解答を投票する

出題：14

What is correct in the following options (Select 3 Answers)?

A. SSID technology can divide a wireless local area network into several sub-networks that require different authentication. Each sub-network needs independent authentication. Only authenticated users can enter the corresponding sub-network to prevent unauthorized access. The user enters the network.

B. The BSSID is actually the MAC address of the AP, which is used to identify the BSS managed by the AP, and maps the BSSID and SSID in the same AP.

C. Users can implement roaming under different SSIDs.

D. The SSID is the same in an ESS, but the BSSID corresponding to each AP in the ESS is different. If an AP can support multiple SSIDs at the same time, the AP will assign different BSSIDs to correspond to these SSIDs.

正解：A,B,D 解答を投票する

出題：15

The port number of the control packet of the CAPWAP tunneling protocol is

A. 5246

B. 1645

C. 1646

D. 5247

正解：D 解答を投票する

出題：16

Which of the following protocols are IEEE 802.11 standards Select 3 Answers)?

A. 802.11s

B. 802.1X

C. 802.11a/b/g/n

D. 802.11i

正解：A,C,D 解答を投票する

出題：17

Huawei AC controller AC6605 supports user access security management through security templates and supports WEP, WPA/WPA2, and WAPI security policies.

A. True

B. False

正解：A 解答を投票する

出題：18

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

A. True

B. False

正解：A 解答を投票する

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