Which of the following statements about the address used by AC to establish a CAPWAP tunnel in VRRP hot backup is correct?

• A.Any address configured in the AC is fine
• B.VRRP virtual addresses of the active and standby ACs
• C.The physical address of the primary AC
• D.The physical address of the standby MC

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The output information of a router is below, which is correct about this information?

• A.The next hop of the route to the target network 1.1.1.0/24 is 1.1.1.1, and the route is optimal
• B.The MED value of the route to the destination network 5.1.1.0/24 is 50
• C.The MED value of the route to the destination network 1.1.1.0/24 is 100
• D.The next hop of the route to the target network 5.1.1.0/24 is 1.1.1.1, and the route is optimal

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Which of the following statements are false about VRRP timers?(Select all that apply)

• A.Skew_Time = (255 - Priority)/255
• B.By default, the VRRP preemption delay is 1s.
• C.The default interval for sending VRRP Advertisement packets is 2s.
• D.Master_Down = (3 × Adver_Interval) + Skew_Time

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An enterprise administrator configures route summarization on ASBRs to reduce the number of inter-area Type 3 LSAs, which in turn reduces the routing table size and improves device resource utilization.

• A.TRUE
• B.FALSE

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The role of the business collaboration layer in the SDN architecture is to complete business deployment based on user intentions. OpenStack belongs to the business collaboration layer.

• A.TRUE
• B.FALSE

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