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Huawei H12-321-ENU Exam Syllabus Topics:

Huawei HCIP-WLAN CEWA(Huawei Certified ICT Professional-Wireless Local Area Network-Constructing Enterprise WLAN Architecture) Sample Questions:

1. Which statements about reliability measurement are TRUE? (Multiple Choice)

A) Generally, system reliability is determined by mean time between failure (MTBF) and mean time to repair (MTTR).
B) MTTR refers to the average time from the fault occurrence time to the fault recovery time.
C) MTBF refers to the average time (usually expressed in hours) from the fault occurrence time to the fault recovery time. A larger MTBF indicates a higher reliability.
D) The formula for calculating the MTTR is as follows: MTTR= Fault detection time + Hardware replacement time + System initialization time + Link recovery time + Route convergence time + Forwarding recovery time A smaller MTTR indicates a higher reliability.

2. The online process of an AP includes the following phases.
What is the correct sequence of these
phases?
1. Decide whether to upgrade the AP.
2. The AP and AC establish a CAPWAP tunnel.
3. The AP goes online, and the AC delivers services to the AP.
4. The AP obtains an IP address.

A) 2->1->4->3
B) 4->1->2->3
C) 4->2->1->3
D) 2->4->1->3

3. Which of the following statement is TRUE about AC functions in the implementation of radio calibration?

A) The AC sends alarms, such as the AP offline alarms to the network management system.
B) The channel adjustment and power adjustment algorithms in radio calibration are coupled with each other, and the AC needs to consider their influence to each other.
C) The AC maintains AP neighbor topology information according to the radio environment information sent by APs.
D) The AC runs the radio calibration algorithm to coordinate and allocate channels and transmit power of APs.

4. Which of the following statements are TRUE about communication between the active/standby ACs with servers in load balancing mode? (Multiple Choice)

A) The IP address of an AC needs to be configured on the RADIUS/Portal server. The RADIUS/Portal server sends COA/DM or Portal Logoff packets to the AC.
B) The IP address of an AC does not need to be configured on the RADIUS/Portal server. The RADIUS/Portal server does not send COA/DM or Portal Logoff packets to the AC.
C) The DHCP server adaptively associates with the relay agent of an AC, but does not automatically send DHCP request packets to the AC.
D) The DHCP server does not adaptively associate with the relay agent of an AC. It automatically sends DHCP request packets to the AC.

5. This figure shows the WIDS attack detection process.

After the dynamic blacklist is delivered to an AP, how does the AP process different data traffic during the punish period?

A) Drop normal data traffic and send attack traffic to the AC
B) Forward normal data traffic and drop attack traffic
C) Forward normal data traffic and send attack traffic to the AC
D) Drop normal data traffic and attack traffic

Solutions: