H12-321 무료 덤프문제 온라인 액세스

Which of the following statements about the three backup modes are TRUE? (Multiple Choice)

• A.Dual-link backup is a cold backup mode, which does not back up STA information. An AP sets up a link with both the active and standby ACs. During an active/standby switchover or a revertive switchover, STAs need to go online again and services are temporarily interrupted.
• B.VRRP HSB: backs up AP, STA, and CAPWAP link information.
• C.No matter in hot standby or cold standby mode, a standby AC can provide backup services for only one active AC.
• D.Dual-link HSB: backs up AP, STA, and CAPWAP link information.

In a WLAN network that enables flood attack detection, the AP detects flooding attacks by detecting which of the following items.

• A.Traffic size of the STA on the AP
• B.The number of times the terminal attempts to log in on the AP.
• C.Number of access terminals of the AP
• D.The frequency of the uplink and the line of the terminal on the AP

Which of the following is the WLAN security threat?

• A.WIDS
• B.WIPS
• C.WDS
• D.Weak IV attacks

As shown in the figure, the main lobe of the directional antenna has a broadband width of 31 degrees. What is the angle between the two MPs on the right?

• A.20 degrees
• B.40 degrees
• C.30 degrees
• D.60 degrees

On a large WLAN network, you can set the DSCP priority of CAPWAP management packets to high priority to improve the reliability of the CAPWAP link between the AP and the AC.

• A.Correct
• B.False