If STP is not turned on for the network composed of switches, there must be a Layer 2 loop.

• A.False
• B.TRUE

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In the campus network, network reliability can be improved by using link aggregation and stacking technology.

• A.False
• B.True

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Which of the following is not the reason for RSTP improving the convergence speed?

• A.P/A mechanism
• B.Fast switching of the root port
• C.Introduction of edge ports
• D.Forward Delay canceled

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Which statement is wrong about the ARP message?

• A.Any link layer protocol requires ARP messages to assist in obtaining data link layer identification
• B.ARP request message is sent by broadcast
• C.ARP packets cannot be forwarded to other broadcast domains
• D.ARP reply packets are sent unicast

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Which of the following are not open interfaces of Huawei network equipment? (Multiple choice)

• A.RESTCONF
• B.NETCONF
• C.JSON
• D.XML

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