After the switch running the RSTP protocol receives the BPDU with the TC set, it clears the MAC addresses learned by all ports.

• A.False
• B.True

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The IP addresses of the VLANIF interfaces of the same switch cannot be the same.

• A.False
• B.True

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Which statement about ARP packets is wrong?

• A.ARP request message is sent by broadcast
• B.Any link layer protocol needs ARP protocol assistance
• C.ARP packets cannot be forwarded to other broadcast domains
• D.The ARP reply message is sent by the unicast party

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How many bits are specified in the bridge priority in the spanning tree protocol?

• A.8
• B.2
• C.16
• D.4

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In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era?

• A.802.11b
• B.802.11g
• C.802.11ac
• D.802.11a

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