What is the value of OSPF and BFD linkage?

• A.The hello sending interval of OSPF is at the second level, which is faster than the BFD sensing link state
• B.Any change in the BFD status will not affect the OSPF neighbor status
• C.Through the BFD detected at the millisecond level, the OSPF status is associated to achieve the purpose of OSPF quickly sensing the link status
• D.The sending interval of BFD packets can reach the millisecond level, which is slower than the OSPF sensing link state

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Which of the following descriptions are wrong about BGP load sharing? (Multiple Choice)

• A.The destination network segment is the same, and BGP routes with different sources can form load sharing.
• B.If BGP load balancing is implemented, the local device needs to be configured with the peer next-hop-local command to change the next hop address to its own address when advertise router to the IBGP peer group.
• C.The AS_Path attribute of the equal-cost route that forms load sharing must be different.
• D.IBGP routes and EBGP routes arriving at the same destination on the public network can form load balancing.

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Regarding the multicast ASM model and the SSM model, which of the following statements are correct? (Multiple choice)

• A.In the ASM model, the receiver cannot know the location of the multicast source in advance
• B.SSM and ASM use the same multicast address range
• C.In the SSM model, the receiver already knows the specific location of the multicast source in advance through other means
• D.SSM directly establishes a multicast forwarding tree between the recipient and the multicast source

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Huawei S series switches, If you need to specify a member switch as the stack master switch, you can power on this first switch 20 and then to the other members of the power switch.

• A.True
• B.False

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Which of the following statements about RADIUS is correct?

• A.RADIUS authentication and Portal authentication cannot be used together. Because Portal authentication is usually used, the Portal server can be used to authenticate users.
• B.MAC authentication does not require a username and password, so you cannot use RADIUS to authenticate a user.
• C.RADIUS protocol authentication, authorization, and audit separation.
• D.RADIUS supports both wired and wireless access methods.

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