Free Huawei H12-891_V1.0-ENU Exam Dumps Questions & Answers

D Class IP address range 239000-239255255,
What does 255 do? Radio

• A.Link-local multicast address, where traffic that uses that address includes network control messages and that address range is only the multicast address segment used by the routing protocol
• B.Locally managed multicast address, which is valid only locally
• C.SSM multicast address, the multicast address segment is valid for the whole network
• D.Any legitimate multicast traffic and multicast application can adopt this address

Which of the following options uses an alternate channel to enable communication between IPV6 addresses?

• A.NAT64
• B.ISATAP
• C.DualStack
• D.6to4

The RSTP protocol provides a variety of protection functions, such as when the edge port is configured as a protection state, the edge port receives the BPDU packet processing method;

• A.Forward BPDU packets as required
• B.After parsing the BPDU message, the relevant information is obtained
• C.Close the port
• D.Directly discard the BPDU packet

OSPFV is the GP running on the P4 network) OSPF3 is the KGP running on the IP6 network. OsPFV works the same basic way as OSPF2, such as elections for DR and BDR. As shown in the figure, an engineer uses three routers for IP6 service testing, and he wants to interconnect the IPv6 network by running OSPFv3.
Which of the following statements is correct regarding the election of the network DR?

• A.After the network converges, R1 is DR
• B.After the network converges, the engineer modifies the priority of R1 to 100, the priority of R2 to 10, and R3 to the default value. When the network converges again, Rl is DR and R2 is BDR
• C.After the network converges, the broadcast link adds a device, R4, with a priority of 150 When the network converges again, R4 is DR
• D.After the network converges, R1 is powered off and restarted, and when the network converges again, R3 is DR

Which of the following tools cannot be referenced directly by the If-match clause in Route-policy?

• A.IP-prefix
• B.Regular expression
• C.Community-filt
• D.AS-path-filter