::1/128 is the IPv6 loopback address.

• A.FALSE
• B.TRUE

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This is the three packets that the administrator has captured on the network. Which of the following statements is incorrect?

• A.The IP address of the Telnet server is 10.0.12.1, and the IP address of the Telnet client is 10.0.12.2.
• B.Application layer data is not included in all three packets
• C.These three packets represent the three-way handshake process of TCP.
• D.The Telnet client uses the 50190 port to establish a connection with the server.

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Two routers have established a point-to-point network using PPP. The administrator has configured the routers tD run OSPF in the same area with the same router ID, what behavior will occur as a result of the configuration?

• A.The routers will not send hello packets to each other because they are using the same router ID.
• B.The routers will build a neighbor relationship even though both routers are using the same router ID.
• C.VRP will notify of a router ID conflict between the two routers.
• D.The routers will build an adjacency even though both routers are using the same router ID.

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As shown in the following figure, the ports connected to the host of Switch A and Switch B belong to VLAN 10 and VLAN 20 respectively. The port type of the switch is Trunk and the PVID is 10 and 20. Which of the following statements are correct? (Multiple choice)

• A.The switch does not carry the VLAN TAG when forwarding data frames sent by the host.
• B.Host A and host B belong to different VLANs and cannot ping each other.
• C.Host A and Host B can ping
• D.Host A's ARP request cannot be forwarded to host B.

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As shown in the following figure, the switch configuration information is as follows. Which of the following statements are correct? (Multiple Choice) interface GigabitEthernet0/0/1 port hybrid pvid vlan 20 port hybrid untagged vlan 10 20
#
interface GigabitEtherneto/0/2
port hybrid pvid vlan 10
port hybrid untagged vlan 10 20
#

• A.The PVID of the port GigabitEthernet 0/0/1 is 20
• B.Host A and Host B can ping each other.
• C.Host A and Host B cannot ping
• D.Data frames on both links do not contain VLAN TAG

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