H12-322 Online Practice Questions and Answers

What is the correct description of the CAPWAP broken link business retention function?

A. By default, the CAPWAP broken link service hold function is enabled.

B. By default, the CAPWAP broken link service hold function is not enabled.

C. In the tunnel forwarding mode, the CAPWAP is broken and the user service is not interrupted.

D. In direct forwarding mode, CAPWAP is broken, and user services are not interrupted.

What is the purpose of using the WLAN Tester 2.0 tool to conduct a survey in the early stage of the project?

A. Understand signal coverage

B. Understanding signal interference

C. Understand the shortcomings of the current network environment

D. Perform network verification

In the WLAN security access authentication technology, which way is the air interface packet encrypted?

A. MAC certification

B. Portal authentication

C. PSK certification

D. Wireless 802.1x authentication

In the direct forwarding mode of the bypass network, what are the descriptions of the following WLAN HA technologies?

A. The CAPWAP link-off service maintenance feature enables online users to forward data packets when an AC fault occurs.

B. After the CAPWAP is broken, the AP allows the new user access feature to also be enabled in the tunnel forwarding mode.

C. AC dual-link cold backup feature can achieve 50ms carrier-class protection switching

D. HSB+VRRP dual-system hot backup can implement two high-reliability mechanisms: active/standby mode and load-sharing mode.

The following is a statement about the combination of the WLAN room subsystem and the existing operator room system. What is wrong?

A. The WLAN signal is not in the same frequency band as the GSM, CDMA, 3G and other signals, and the combiner has a high isolation, so the signal between different frequency bands No interference with each other

B. Existing room division devices (power splitter/coupler/antenna) need to support the 2.4G frequency band of WLAN, otherwise the room division device needs to be replaced.

C. If the operator's signal can meet the coverage requirements, it can usually be satisfied after accessing the WLAN signal.

D. There must be a parallel topology relationship between the APs, and multiple APs are not allowed to be connected in series on one branch.

What is wrong about the description of antenna azimuth and downtilt below?

A. Azimuth specifies the coverage direction of the antenna

B. Azimuth can be understood as the angle that the plane in the north direction rotates clockwise to coincide with the plane of the antenna.

C. Downtilt angle affects the coverage of the antenna in the vertical direction

D. The downtilt angle is the angle between the antenna and the vertical plane

Which of the following statements about the merge path of the WLAN Tester 2.0 tool is correct?

A. For the same drawing node, multiple, multiple tested paths can be merged

B. At least 2 and above paths can be merged

C. The path where the calculation fails occurs, and the path that failed the calculation is automatically deleted after the path is merged.

D. The merged path cannot be merged again

Which of the following authentications does not support key down?

A. Share-key

B. WPA+PSK

C. WPA+802.1x

D. WPA2+PSK

Which of the following channels and adjacent channels have adjacent channel interference?

A. 1

B. 4

C. 6

D. 8

Xiao Zhang is the network administrator of a hotel. One day he found that the hotel's visitors could not access the network normally. After checking, the visitor's equipment was wrong. Incorrect IP address, in order to prevent this kind of attack, which of the following technologies should be used in the network?

A. DHCP Snooping

B. Dynamic ARP Detection (DAI)

C. IP Source Protection (IPSG)

D. MAC certification