Free Access to Huawei.H12-821_V1.0-ENU.v2022-02-24.q139 with Valid Practice Test (Page 5)

Regarding the special area of OSPF, which of the following description of is incorrect?

A.The Totally Stub Area allows the ABR to advertise the default Type 3 LSA, but does not accept the Type 5 LSA and the refined Type 3 LSA
B.The difference between a Totally Stub area and an NSSA area is that the Totally Stub area does not accept inter-area routing information.
C.The NSSA Area is different from the Stub area because this area allows the import of autonomous system external routes, and the ABR advertises LSA7 notifications to this area.
D.The difference between the Stub area and the Totally stub area is that the stub area allows detailed routing information between areas

Which is not included in the three elements of the server map table of the USG series firewalls?

OSPF can support multiple network types. Which of the following network types need to elect DR and BDR? (Multiple choice)

Which of the following statements is wrong about multicast MAC addresses? (Multiple choice)

A.1 multicast MAC address correctly corresponds to 32 IP multicast addresses
B.One multicast MAC address is unique, corresponding to one IP multicast address
C.The high 24 bits of the multicast MAC address are 0x01005f, the 25th bit is fixed to 1, and the low 23 bits of the MAC address are the low 23 bits of the multicast IP address
D.The function of the multicast MAC address is to identify receivers belonging to the same multicast group at the link layer

Which of the following scenarios is suitable for SD-WAN solutions?

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