When the data encapsulation mode of Ip sec is tunnel mode, the IP address of the intranet host is hidden, which can protect the security of the entire original data packet.

• A.False
• B.True

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In terms of security, tunnel mode is more secure than the transport mode.

• A.FALSE
• B.TRUE

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A complete IP network service access network control points are below the floor ().

• A.Backbone
• B.Core
• C.Access Network
• D.MAN

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Which of the following commands is used to display the OSPF neighbor relationship establishment?

• A.display ospf brief
• B.display ospf peer
• C.display ospf interface
• D.display ospf neighbor

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The company network engineer has an AR2200 that cannot be started normally. How can the administrator want to update its VRP?

• A.The administrator needs to use telnet on the local host to remotely update the VRP system files of the device.
• B.The administrator needs to use the console cable to connect to the router and host, and then enter the BootROM interface to complete the upgrade.
• C.The administrator needs to configure the AR2200 as an FTP client and use FTP to transfer the new VRP.
• D.The administrator needs to configure the AR2200 to obtain an IP address through DHCP and then obtain the VRP system file through TFTP.

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