When a router is powered on, the router reads the configuration file saved in the default save directory to get itself initialized. If the configuration file does not exist in the default save directory, what does the router use to initialize itself?

• A.Default parameters.
• B.Current configuration file.
• C.New configuration file.
• D.Initial configuration file.

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Regarding the conflict domain and the broadcast domain, the description which is correct? (Muitiple choice)

• A.The device connected to a HUB belongs to a conflict domain.
• B.The device connected to a switch belongs to a broadcast domain.
• C.The device connected to a switch belongs to a conflict domain.
• D.The device connected to a HUB belongs to a broadcast domain.
• E.The device connected to a router belongs to a broadcast domain.

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As shown in the following figure, Router A and Router B establish an OSPF neighbor relationship. The OSPF process ID of Router A is 1 and the area ID is 0. Which of the following methods can enable Router B to obtain the route of the network segment where Host A is located? (Multiple Choice)

• A.ospf 1 area 0.0.0.0 network 192.168.1.2 0.0.0.0 #
• B.ospf 1 area 0.0.0.0 network 192.168.1.00.0.0.255 #
• C.ospf 1 import-route direct #
• D.ospf 1 area 0.0.0.0 network 192.168.0.00.0.255.255

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The principle of VLSM: Based on the classful IP addresses, you can borrow some host ID bits as part of the network bits. When deploying on a router, VLSM needs the routing protocol supports it.

• A.TRUE
• B.FALSE

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Refer to the displsy information.

A switch attempts to forward a frame to the MAC destination 54S9-98ec-f011.
What operation will occur on the switch?

• A.The switch will drop the frame because it does not have an entry in its MAC address table.
• B.The switch will send a request to obtain the MAC address of 5489-98ec-f011.
• C.The switch will report that the destination is unreachable and report this to the source.
• D.The switch will flood the frame via ail ports, with exception of the port on which the frame was received.

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