Man-in-the-middle attacks or IP/MAC spoofing attacks can lead to information leakage and other hazards, and are more common in the intranet, in order to prevent man-in-the-middle attacks or IP/MAC spoofing attacks, you can take the configuration method

• A.Enable DHCP snooping to check the chaddr field in a DHCP request message
• B.Configure DHCP snooping on the switch to interbolde with DAI or IPSG
• C.Configure the trusted/untrusted interface
• D.Limit the maximum number of MAC addresses allowed to be learned on the switch interface

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What is the correct description of the scene shown in the following figure?

• A.R1 simultaneously exists level-1 and Level-2 LSDB
• B.There is no neighbor relationship between R1 and R2
• C.R1 can ping the interface address of R2 loopback 0
• D.R1 has a route to R2 loopback 010022/32

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Which of the following LSAs propagate in a single region only?

• A.Network LSA
• B.Router LSA
• C.AS External LSA
• D.Summary LSA

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In order to configure M4, you first need to define a RADIUS server, which is defined as follows:
[Huawei]radius-server template EXAM
[Huawei-radius-EXAM] radius-servers hared-key cipher HUAwei123
[Huawei-radius-EXAM] radius-server authentication 10766661812
[Huawei-radius-EXAM] radius-server authorization 1076666 1812
[Huawei-radius-EXAM] radius-server accounting 10766661813
[Huawei-radius EXAM] radius-server retransmit 2

• A.False
• B.True

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As shown in the figure, a company wants to achieve secure mutual access between the head office and branches through MPLSVPN, and at the same time requires that the IPN traffic of the branch bank must be forwarded through the head office to achieve traffic monitoring

• A.Between Hub-CE and Hub-PE, and between Spoke-PE and Plan-CE, routing information can be exchanged using the OSPF protocol
• B.VPN routing information can be exchanged between CE and PE using BGP messages
• C.When Hub-CE passes routing information with Hub-PE, you need to configure a route on Hub-PE that allows receiving AS numbers to be repeated 1 time to receive routes published by Hub-CE
• D.An MP-IBGP peer relationship is established between Spoke-PE and THE VPN routing information is exchanged.

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