Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 351:

  Which of the following statements about passive neighbor probe is TRUE?

  A. An AP receives neighbor information to detect neighboring APs.
  B. Passive probe is used by authorized APs to collect interference information from neighboring APs.
  C. Passive probe is used by authorized APs to collect interference information from rogue APs.
  D. Passive probe is used to establish neighbor relationships between authorized APs.
  D. Passive probe is used to establish neighbor relationships between authorized APs.

• Question 352:

  As shown in the following figure, the forwarding of data traffic before roaming is STA-HAP-HAC-upper-layer network. After Layer 2 roaming, what is the forwarding traffic of data?

  A. STA-FAP-FAC-HAC-upper layer network
  B. STA-FAP-FAC-HAC-HAP-HAC-upper layer network
  C. STA-FAP-FAC-upper layer network
  D. STA-FAP-FAC-HAC-FAC-upper layer network
  C. STA-FAP-FAC-upper layer network

• Question 353:

  In smart roaming, to determine whether a neighbor AP with better signals exists, an 802.11k-incapable STA needs to start scanning to obtain neighbor AP information.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 354:

  In the WLAN network environment where the Agile Controller is used, the following symptoms do not match the 802.1x authentication faults?

  A. Client 802.1x authentication fails
  B. The client repeatedly drops the line after passing the 802.1x authentication.
  C. The test-aaa login test is normal and the authentication interface cannot be opened.
  D. Enter the correct account password and always prompt the account name and password are incorrect.
  C. The test-aaa login test is normal and the authentication interface cannot be opened.

• Question 355:

  In indoor environments, the reflection, refraction, diffraction and scattering of signals by walls and other obstacles are the main factors affecting the quality of the link, and the Fresnel region is also an important factor.

  A. Correct
  B. False
  B. False

• Question 356:

  On a WLAN with the WIDS function enabled, which of the following devices will NOT trigger rogue device alarms after they are identified as rogue devices? (Multiple Choice)

  A. AP
  B. Ad-hoc
  C. Wireless bridge
  D. STA
  B. Ad-hoc
  C. Wireless bridge
  D. STA

• Question 357:

  On the N+1 backup network, a total of 300 APs from AP1 to AP300 are deployed on AC1, and 400 APs from AP301 to AP700 are deployed on AC2. The AC can be configured as a standby AP. When the AP goes online, without changing the configuration, the following statement is wrong?

  A. If the AC1 is faulty, the APs in the AP1 to AP300 will perform the active/standby switchover in the AC3.
  B. If the AC2 is faulty, the APs of the AP301 to the AP700 will perform the active/standby switchover in the AC3.
  C. If AC1 and AC2 are faulty at the same time, only the 500 APs from AP1 to AP500 can perform active/standby switchover in AC3, and the remaining 200 APs cannot go online in AC3. The services of these APs will be interrupted.
  D. After the AC1 or AC2 fails to recover, the APs that go online in AC1 and AC2 are undefined.
  C. If AC1 and AC2 are faulty at the same time, only the 500 APs from AP1 to AP500 can perform active/standby switchover in AC3, and the remaining 200 APs cannot go online in AC3. The services of these APs will be interrupted.
  D. After the AC1 or AC2 fails to recover, the APs that go online in AC1 and AC2 are undefined.

• Question 358:

  When the AP goes online, it will go through the following stages. What is the correct order in order? 1. Determine whether to upgrade the AP 2. The AP and the AC establish a CAPWAP tunnel. 3. The AP goes online. The AC sends the service to the AP 4. The AP obtains the IP address.

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

• Question 359:

  In the wireless access authentication, which of the following servers does the Agile Controller have?

  A. AD server
  B. LDAP server
  C. Radius server
  D. DNS server
  C. Radius server

• Question 360:

  In the N+1 backup networking, the following is true about the application of option 43?

  A. After the Option 43 field is configured, the AP sends unicast Discovery Request packets only to the AC IP address passed by the Option 43.
  B. If the AC that the option 43 advertises the IP address does not respond to the AP, the AP finds that the AC fails.
  C. To configure the option 43 field, you need to advertise the IP address of the primary AC and the standby AC to which the AP belongs. You also need to advertise the IP addresses of other primary ACs.
  D. Configure the DHCP server option 43 parameter field. The command for the IP address of the primary AC and the standby AC is option 43 sub-option 2 ipaddress and
  A. After the Option 43 field is configured, the AP sends unicast Discovery Request packets only to the AC IP address passed by the Option 43.
  D. Configure the DHCP server option 43 parameter field. The command for the IP address of the primary AC and the standby AC is option 43 sub-option 2 ipaddress and