There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band.

• A.False
• B.True

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As shown in the figure below, host A and host B cannot communicate.

• A.True
• B.False

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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 adjust the sequence number of the first rule to 5 according to the configuration sequence
• B.The VRP system will first match the rule by numbering in sequence deny source 20.1.1.0 0.0.0.255
• C.Configuration error, the sequence number of the rules must be configured from small to large
• D.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

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What is the range of VLAN ID that users can use?

• A.0-4096
• B.1-4094
• C.1-4096
• D.0-4095

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What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? (Multiple choice)

• A.Reuse of IP address can be realized
• B.Heavy workload and difficult to manage
• C.Avoid IP address conflicts
• D.When the configuration information changes (such as DNS), only the administrator needs to modify it on the DHCP server to facilitate unified management

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