H12-321 Online Practice Questions and Answers

What information can the Agile Controller send to the NAS device for permission control?

A. VLAN

B. ACL

C. Static ARP binding relationship

D. Static routing

E. Certain specific RADIUSM properties

Which of the following statements about the second Fresnel zone are TRUE? (Multiple Choice)

A. The wave has a different phase from the point source.

B. The wave has the same phase as the point source.

C. Smaller than the first Fresnel zone

D. Larger than the first Fresnel zone

Which of the following factors should be considered when engineers determine the antenna installation height in the long-distance point-to-point scenario? (Multiple Choice)

A. Signal transmission frequency

B. Distance between the receive and transmit antennas

C. Antenna beamwidth

D. Earth curvature

As shown in the figure, in the dual-link cold backup load balancing network, as shown in the figure, the two SSIDs of the Huawei and the guest are configured on the AC1, and the SSID of the Huawei is configured on the AC2. The same SSID configuration is the same, and AP1 is online. AC1 and AP1 establish the primary line first. After the AP1 is disconnected from the AC1 link and the active/standby switchover is sent, what is the service status of the user accessed by the Guest SSID?

A. The service in the local forwarding mode is uninterrupted, and new users cannot access the guest.

B. The service in the local forwarding mode is uninterrupted, and new users can access the guest.

C. The service is interrupted in the centralized forwarding mode, and new users cannot access the Guest.

D. The service in the centralized forwarding mode is uninterrupted, and new users cannot access the Guest.

When installing a long-distance point-to-point RF communication link, if the distance between the transmitting and receiving antennas exceeds several kilometers, consider the influence of the curvature of the Earth?

A. 3.3km

B. 5.3km

C. 7.3km

D. 11.3km

What is wrong about the description of the business VAP below?

A. Provide wireless terminal access

B. Establish MESH connection establishment

C. Each RF can be configured in multiples, and the number is not limited.

D. Each RF can be configured with only one

During the roaming process, which packets are handled improperly may cause tunnel aggregation problems?

A. Unknown unicast

B. Broadcast

C. Multicast

D. Multicast

After AP online configuration is complete on a Layer 3 WLAN, APs cannot go online. What are the possible causes? (Multiple Choice)

A. The source interface is not configured.

B. The network route is unreachable.

C. The Option 43 field is not configured.

D. VLAN Pool is not configured.

The following statement about the Mesh network is wrong?

A. Protocol based on IEEE802.11m

B. Not only can the user access function be provided, but also the wireless link signal can be forwarded.

C. Multiple APs form a network structure

D. The signal is routed from one AP to another within the network, and finally transmitted to the wired network through the AP connected to the fixed line.

In the WLAN network, the Weak IV attack detection function does not require dynamic blacklist support.

A. Correct

B. False