The administrator wants all hosts to be unable to access the Internet between 8:00-17:00 every day, so which ACL rule needs to be bound to the traffic-filter outbound in the GO/0/1 interface allocation?

• A.time-range am9topm5 08:00 to 17:00 daily acl number 2001 rule 5 deny time-range am9topm5
• B.time-range am9topm5 08:00 to working-day Acl number 2003 rule 5 deny time-range am9topjni5
• C.time-range am9topm5 08:00 to 17:00 off-day # acl number 2004 rule 5 permit time-range
• D.time-range am9topm5 07:00 to 18:00 daily Acl number 2002

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

• A.True
• B.False

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The IEEE 802.11ac standard only supports the 5GHz frequency band.

• A.FALSE
• B.TRUE

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The following rules exist in a certain ACL of the router. rule deny tcp source 192.168.1.0 0.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 Which statement is correct?

• A.The source IP of the rule is 192.168.1.1, the destination IP is 72.16.10.3. All TCP packets with the destination port number of 21 match this rule
• B.The source IP is 192.168.1.1, the destination IP is 172.16.10.2, and all 1CP packets whose destination port number is 21 match this one
• C.The source IP is 192.168.1.1, the destination IP is 172.16.10.1, and all TCP packets whose destination port number is 21 match this rule
• D.The type of ACL is a basic ACL

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In the network as shown in the figure below, the host has an ARP cache. Which of the following statements is correct? (Multiple Choice)

• A.The following entries exist in the ARP cache of host A 11.0.12.1 MAC-B
• B.The following entries may exist in the ARP cache of host A, 10.0.12.2 MAC-C
• C.Host A and Host B can communicate in both directions
• D.The router needs to be configured with static routing, otherwise host A and host B cannot communicate in both directions

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