The following is a description of the AC backup. The error is

• A.Two AC products act as redundant backup protection, which can effectively improve the reliability of enterprise wireless office network services.
• B.The dual-link backup mechanism is supported, and the networking is more flexible. The active and standby ACs can only be Layer 2 networks.
• C.Both VRRP and dual link mechanisms support uplink detection.
• D.1+1 hot backup supports user data information, CAPWAP tunnel information, and AP entries.

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Which of the following are APs for external antennas (multiple choice)

• A.AP5030DN
• B.AP5130DN
• C.AP8030DN
• D.AP8130DN

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Which of the following models is the data center 2019 main push type (multiple choice)

• A.CE 8861
• B.CE 6865
• C.CE 6857
• D.CE 12800E

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Take AC6605 as an example. The number of manageable nodes is 1024, that is, 1024 AD9430DN can be managed.

• A.FALSE
• B.TRUE

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The free feature in the USG6000 next-generation firewall is

• A.URL filtering
• B.AV
• C.IPS
• D.IPSec VPN

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