The AP periodically sends Discovery Request messages to check whether the original primary tunnel recovers. If the original primary tunnel recovers, the AP switches STA data back to this tunnel after a delay because this tunnel has a higher priority than the other one. To prevent frequent switchovers caused by network flapping, the AP requests ACs to perform revertive switchover after six Echo intervals, and then sends STA data to the new active AC.

A. TRUE

B. FALSE

As shown in the figure, four STAs (STA1 to STA4) are associated with API and STA5 is associated with AP2. The start threshold for load balancing is set to 5. API and AP2 each allow a maximum of 10 STAs and the load difference threshold is set to 10%. When STA6 sends an association request to API for the first time, which of the following statements is TRUE?

A. API preferentially uses the load balancing algorithm for calculation and allows the association request from STA6.

B. API preferentially uses the load difference threshold algorithm for calculation and allows the association request from STA6.

C. API preferentially uses the load balancing algorithm for calculation and rejects the association request from STA6.

D. API preferentially uses the load difference threshold algorithm for calculation and rejects the association request from STA6.

During dual-link hot backup, the AP establishes a CAPWAP link with both the primary AC and the backup AC.

A. Correct

B. False

Which of the following statements about the first Fresnel zone is FALSE?

A. The first Fresnel zone affects RF communication integrity even though it is partially blocked.

B. The first Fresnel zone makes RF signals diffract or bend even through it is blocked.

C. Signal diffraction reduces RF energy received by antennas or even interrupts the communication link.

D. Under any circumstances, the proportion of the area blocked by obstacles in the first Fresnel zone cannot exceed 60%.

Which statement about wired interface profile reference is TRUE?

A. [AC-wlan-view]ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] mesh-profile mesh-net radio 1

B. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] regulatory-domain-profile domainl

C. [AC-wlan-view]ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp]wired-port-profile wired-port gigabitethernet 0

D. [AC-wlan-view]ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp]ap-system-profile mesh-sys