In which of the following scenarios will send free ARP packets? (Multiple Choice)

• A.After the VRRP protocol master and backup role election is completed.
• B.When a host connected to the switch sends a Ping packets.
• C.When a new host configured with an IP address is connected to the network
• D.After the DHCP client receives the confirmation message sent by the server

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View LSP on a router, see the following results:
Which of the following statement is correct?

• A.When sending a data packet with a destination address of 2.2.2.2, send it directly without labeling.
• B.When sending a data packet with a destination address of 3.3.3.3, tag 1026 and send it.
• C.When the router receives a data packet with a label of 1024, it will change the label to 1027 and then send it.
• D.When sending a data packet with a destination address of 4.4.4.4, the packet is sent directly untagged.

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In a basic network layer data packet, which of the following information can be included? (Multiple choice)

• A.Network layer tail
• B.Upper-level data
• C.Data link layer header
• D.Network layer header

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Regarding routing control, which of the following description is correct? (Multiple choice)

• A.In node 10, the relationship between if-match community-fiter1 and if-match as-pah-fiter1 are "and"
• B.Use the impot-route BGP command to import IBGP routes
• C.OSPF, ISIS, and BGP can all issue default routes.
• D.AS-path-fiter is for AS-path, which affects the routing of routing.

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Which of the following expressions can only match BGP routing entries that pass through AS200 and then AS300?

• A._(200 300)_
• B.^200 | ^300
• C.200$ | 300$
• D._[200 300]_

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