Free Access Huawei.H12-831_V1.0-ENU.v2022-01-20.q92 Practice Test (Page 18)

Question 81

By default, which of the following secure MAC address types will be lost after the device restarts?

A.Secure dynamic MAC address

B.Sticky MAC address

C.Secure static MAC address

D.Black hole MAC address

Question 82

Which of the following is wrong about DHCP Snooping?

A.DHCP Snooping can prevent illegal attacks by setting trusted ports (all interfaces are untrusted by default)

B.Enable the DHCP Snooping function in the interface view, then all the DHCP message command functions under the interface will take effect

C.Enable the DHCP Snooping function in the VLAN view, and the command function of DHCP messages belonging to the VLAN received by all interfaces of the device will take effect

D.Enable DHCP Snooping globally, without any post parameters, the device only processes DHCPv4 messages by default

Question 83

Regarding the difference between NSR and NSF, which one is correct?

A.NSF does not need neighbor routers to complete

B.Both NSR and NSF need neighbor routers to complete

C.NSF must rely on neighbor routers to complete

D.NSR must rely on neighbor routers to complete

Question 84

Basic QinQ can select the outer tag encapsulation method according to the type of business.

A.FALSE

B.TRUE

Question 85

As shown in the figure, PE1 and PE2 and their respective CEs exchange private network routing information through OSPF, and the same DomainID is configured on PE1 and PE2. When routes are imported from BGP to OSPF on PE2, which of the following types of SA may be delivered to CE2? (Multiple choice)

A.Type3 LSA

B.Type1 LSA

C.Type5 LSA

D.Type7 LSA

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Question 81

Question 82

Question 83

Question 84

Question 85

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