Huawei h12-321 practice test

Question 1

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On an N+1 backup network, the AP establishes a CAPWAP link with the primary AC. The standby AC
sends the primary discovery packets to the local device. The resource consumption of the AP is
smaller than that of the dual link.
A. Correct
B. False

Answer:

A
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Question 2

As shown in the figure, regarding the active/standby mode of the dual-system hot backup solution,
the following statement is wrong?

• A. VRRP can be applied to active/standby backup and load balancing.
• B. The selection of the active and standby devices in the dual-system hot backup is the same as the selection of the active and standby devices in the VRRP group. The primary and backup status of the active and standby VRRP groups of the HSB is the same as the active/standby status of the VRRP group. The WLAN-related service configuration must be the same for the same APs on the active and standby ACs. Otherwise, the AP cannot work normally after the active/standby status of the AC is switched.

Answer:

A

Question 3

The following is the correct configuration for referring to the AP system template and the MESH
template?

• A. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] wired-port-profile wired-port gigabitethernet 0
• B. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] regulatory-domain- profile domain 1
• C. [AC-wlan-view]ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp]mesh-profile mesh-net radio 1
• D. [AC-wlan-view]ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp]ap-system-profile mesh- sys

Answer:

C, D

Question 4

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

Answer:

B, C, D

Question 5

What is wrong about the return type VAP description below?
A. Complete MP neighbor discovery
B. Complete the MESH connection establishment and data return function
C. Establish routing topology between nodes by forwarding route management packets on the
backhaul link
D. Multiple RF backhaul VAPs can be created for each RF

Answer:

D
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Question 6

In the meshed MESH networking, the following description of the MESH path is correct?

• A. There is only one MESH path.
• B. A wireless link cascaded between a source MP and a destination MP by a series of MESH connections
• C. There may be multiple pieces in the MESH path.
• D. In the MESH path, the source AP can be MP or MPP.

Answer:

B, C, D

Question 7

Taking 5GHz as an example, if the transmitting and receiving antennas are separated by 1km, the
radius of the Fresnel zone is roughly?

• A. 2.4m
• B. 3.6m
• C. 5.6m
• D. 6.2m

Answer:

B

Question 8

Both the N+1 backup and the dual-link cold backup support the link switchback function. To avoid
frequent network switchovers, N+1 backup and dual-link cold backup are waiting for 20 heartbeat
cycles by default. Switch back operation.

• A. Correct
• B. False

Answer:

A

Question 9

The device receives an exception notification when the primary and backup service packets sent by
the peer are not received within the time interval between the primary and secondary service
packets and the number of retransmissions. Prepare to rebuild the primary and backup backup
channels.
A. Correct
B. False

Answer:

A
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Question 10

When the VRRP hot backup is configured, the active and standby ACs can be hot standby through
Layer 3 interworking on two different Layer 2 networks.

• A. Correct
• B. False

Answer:

B