Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 511:

  Load balancing can be implemented among APs that are not connected to the same AC, but STAs can scan the SSIDs of the APs on which load balancing is implemented.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 512:

  Which of the following is NOT the purpose of WLAN device upgrade?

  A. To fix existing problems.
  B. To optimize device performance.
  C. To obtain new features and functions.
  D. To prolong the service life of the device.
  D. To prolong the service life of the device.

• Question 513:

  In the channel switching service uninterrupted feature, the time that the AP and the terminal agree to switch the channel synchronously is based on the beacon frame. The two parties agree to switch the channel synchronously after the time node of the certain beacon frame.

  A. Correct
  B. False
  A. Correct

• Question 514:

  Which of the following illegal attack detections require dynamic blacklist support in a WLAN network?

  A. Flood attack detection
  B. Spoof attack detection
  C. Weak IV attack detection
  D. Anti-brute force cracking
  A. Flood attack detection
  D. Anti-brute force cracking

• Question 515:

  Which of the following statements is FALSE about the AD and LDAP servers?

  A. The AD server is a dedicated directory server for the Windows Server.
  B. LDAP can be installed on the Windows Server.
  C. The AD server uses the AD directory service protocol.
  D. The AD server uses the LDAP directory service protocol.
  C. The AD server uses the AD directory service protocol.

• Question 516:

  Which of the following statements are TRUE about the application scenarios and features of the ACs? (Multiple Choice)

  A. The AC card such as ACU2 applies to large-scale networks and scenarios which have insufficient rack space but require capacity expansion.
  B. The independent AC such as the AC6605 applies to scenarios which require unified construction of wired and wireless networks and unified management on wired and wireless users.
  C. The native AC such as the X1E card applies to scenarios where the wired and wireless users are managed separately.
  D. The native AC such as the X1E card provides higher forwarding performance than the independent AC, such as the AC6605. In addition, the native AC can implement link and device redundancy, making the WLAN more reliable.
  A. The AC card such as ACU2 applies to large-scale networks and scenarios which have insufficient rack space but require capacity expansion.
  D. The native AC such as the X1E card provides higher forwarding performance than the independent AC, such as the AC6605. In addition, the native AC can implement link and device redundancy, making the WLAN more reliable.

• Question 517:

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

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

• Question 518:

  What is the correct statement about reliability metrics below?

  A. Generally, we use the two technical indicators of mean time between failure MTBF and mean time to repair MTTR to evaluate system reliability.
  B. MTBF is the average time it takes for a system to go from failure to recovery, usually in hours. The more MTBF, the higher the reliability
  C. MTTR is the average time required for a system to recover from a failure to recovery.
  D. MTTR is calculated as: MTTR = fault detection time + hardware replacement time + system initialization time + link recovery time + route coverage time + forwarding recovery time. The smaller the MTTR value, the higher the reliability.
  A. Generally, we use the two technical indicators of mean time between failure MTBF and mean time to repair MTTR to evaluate system reliability.
  C. MTTR is the average time required for a system to recover from a failure to recovery.
  D. MTTR is calculated as: MTTR = fault detection time + hardware replacement time + system initialization time + link recovery time + route coverage time + forwarding recovery time. The smaller the MTTR value, the higher the reliability.

• Question 519:

  When the user uses the WPA2-802.1x security policy and the STA supports the fast roaming technology, the user does not need to complete the 802.1x authentication process during the roaming process.

  A. Correct
  B. False
  A. Correct

• Question 520:

  On a WLAN that uses the Agile Controller to implement admission control, which of the following statements are TRUE about the pre-authentication domain? (Multiple Choice)

  A. The method of configuring the pre-authentication domain is the same as that of configuring the post-authentication domain.
  B. If ACLs are used for the pre-authentication domain, user ACLs need to be used.
  C. There are two ways to configure the pre-authentication domain: by using ACLs, or by adding authentication-free rules.
  D. IP addresses of the following devices need to be permitted in the pre-authentication domain: antivirus gateway, firewall, and mail server.
  B. If ACLs are used for the pre-authentication domain, user ACLs need to be used.
  C. There are two ways to configure the pre-authentication domain: by using ACLs, or by adding authentication-free rules.