H12-321 by Huawei Actual Free Exam Q&As

Question 1

Regarding the Agile Controller admission model, what is the correct description below?

A. Currently only 802.1x and Portal authentication can support all the conditions in the admission model. B. In the admission model, the core is the authorization condition and authorization result C. Authorization element does not include IP address range D. Authorization conditions include authorization elements

Discussion 0

Correct Answer: A,B,D Vote an answer

Question 2

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. False B. Correct

Discussion 0

Correct Answer: A Vote an answer

Question 3

A company needs to build a large Layer 3 WLAN to cover its office building. There are a large number of employees in the office building and they usually connect to the company WLAN at the entrance and then move to their own work locations.
The company has deployed a wired network and developed a mature wired network management mechanism.
The company requires that the newly deployed WLAN be managed and maintained uniformly with the wired network. The IP address of the AC is 172.168.11.1.
Which of the following operations performed by network engineers are CORRECT during WLAN planning?
(Multiple Choice)

A. On a Layer 3 WLAN, set the Option 43 field to 030B3137322E3136382E31312E31 on the Windows
2003 DHCP server. B. On a large WLAN, an AC manages many APs. To facilitate unified management and maintenance, add APs connected to the AC to the same AP group. C. Because the company has a large number of employees and they all connect to the WLAN at the office building entrance, configure VLAN Pool to address the challenge of too many IP address requests in certain areas. D. To facilitate unified wired and wireless network management, adopt the "Chassis switch+ACU2" architecture and configure wired and wireless convergence.

Discussion 0

Correct Answer: A,C Vote an answer

Question 4

Radar systems in some areas operate in the 5G band and interfere with AP RF signals operating in the 5G band. With the DFS function, when the AP detects that there is interference in the frequency band of its working channel, engineers need to manually switch the working channel.

A. False B. Correct

Discussion 0

Correct Answer: A Vote an answer

Question 5

On an intra-frequency Mesh network, two APs provide 200 Mbps bandwidth. Which is the average bandwidth if one more AP is added to the network?

A. Up to 200 Mbps B. Up to 150 Mbps C. Up to 50 Mbps D. Up to 100 Mbps

Discussion 0

Correct Answer: D Vote an answer

Question 6

Which of the following behaviors are WLAN network security threats?

A. WIDS B. WIPS C. Weak IV attack D. WDS

Discussion 0

Correct Answer: C Vote an answer

Question 7

The following statement about N+1 backup is correct?

A. A standby AC can provide backup services for multiple primary ACs, reducing the cost of purchasing equipment, and the reliability is higher than VRRP hot backup. B. The configuration of the active and standby AC products can be different. Only the software version of the AC must be consistent. C. N+1 backup is a cold backup, backing up AP information and STA information. D. The model and software version of the active and standby ACs must be identical.

Discussion 0

Correct Answer: B Vote an answer

Question 8

An engineer sets the CAPWAP heartbeat detection interval to 20 seconds and enables dual-link HSB. What is the heartbeat packet transmission timeout interval of the active link before an active/standby switchover occurs?

A. 90 seconds B. 75 seconds C. 20 seconds D. 60 seconds

Discussion 0

Correct Answer: D Vote an answer

Question 9

Which of the following statements about the default configuration of common dual-link cold standby parameters is TRUE?

A. Revertive switchover in dual-link backup mode is disabled. B. The AC's AP-specific priority is 0. C. The dual-link backup function is enabled. D. The AC's global priority is 0.

Discussion 0

Correct Answer: D Vote an answer

Question 10

The following statement about the proactive detection of neighbors is wrong?

A. Active detection is mainly used to obtain the maximum interference signal strength between legal neighbors, the most critical of which is the signal strength of neighbor APs. B. Active detection is mainly used to establish neighbor relationships between legal APs. C. The AP periodically sends a Probe Request frame with the specified multicast address on different channels. After receiving the AP, the AP detects that the AP is a neighbor AP. D. Active detection and passive detection are used to collect interference from illegal APs.

Discussion 0

Correct Answer: D Vote an answer

Question 11

What is the radius of the Fresnel zone if the distance between the receive and transmit antennas is 5 km (take the 5 GHz frequency band as an example)?

A. 9.7 m B. 3.6 m
B 5.6 m C. 8 m

Discussion 0

Correct Answer: A Vote an answer

Question 12

To shorten the STA roaming time, the APs perform 4-way handshake using WPA and WPA2 to negotiate keys. In this way, negotiation packets are not forwarded to the AC, reducing the time required.

A. TRUE B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question 13

When the WLAN network supports inter-AC roaming, multiple ACs establish a full connection through the inter-AC tunnel. If the user of the Layer 3 roaming to other ACs can still receive broadcast packets from the original subnet and simply broadcast the broadcast packets to other ACs through the roaming tunnel, a broadcast loop may be formed.

A. False B. Correct

Discussion 0

Correct Answer: B Vote an answer

Question 14

What information can the Agile Controller deliver to the NAS device for right control? (Multiple Choice)

A. Static ARP entry B. VLAN C. Specific RADIUS attributes D. Static routes E. ACL

Discussion 0

Correct Answer: B,D,E Vote an answer

Question 15

Which are the methods to prevent loops on a Mesh network? (Multiple Choice)

A. Repeated frame sequence number check B. TTL C. STP D. MSTP

Discussion 0

Correct Answer: A,B Vote an answer

Huawei Certified Network Professional - Wireless Local Area Network- Constructing Enterprise WLAN Architecture - H12-321 Exam Practice Test