In the switch MAC address table, which of the following entries will not age?

• A.Dynamic MAC address table entry
• B.Device MAC address table entry
• C.Port MAC address table entry
• D.Static MAC address table entry

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What frequency does IEEE 802.11n support? (Multiple Choice)

• A.2.4GHz
• B.6GHz
• C.2.5GHz
• D.5GHz

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Which of the following IPv6 is a global unicast address?

• A.FF::02::2E0:FCFF:FEEF:FEC
• B.FF02::1
• C.2001::12:1
• D.FEE:FCFF:FEEF:FEC

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UDP cannot guarantee the reliability of data transmission, and does not provide the functions of message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements.

• A.False
• B.True

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Complete the ACL configuration shown in the figure on the router RTA, which of the following description is correct?

• A.The VRP system will first match the rule by numbering in sequence deny source 20.1.1.0 0.0.0.255
• B.Configuration error, the sequence number of the rules must be configured from small to large
• C.The VRP system will not adjust the sequence number, but will first match the rule permit source 20.1.1.0 0.0.0.255
• D.The VRP system will adjust the sequence number of the first rule to 5 according to the configuration sequence

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