Free Access Huawei.H12-831_V1.0-ENU.v2024-02-23.q165 Practice Test (Page 15)

Question 66

In the finishing work of the structured network troubleshooting process, which of the following are the documents that need to be handed over? (Multiple choice)

A.Troubleshooting process documentation

B.Troubleshooting summary report

C.Maintenance suggestions to avoid the failure

Question 67

IEIF has extended the functions of OSPF by taking advantage of the strong scalability of OSPF. To enable it to support IPv6 networks, the expanded protocol is called OSPFv3, and OSPFv3 is compatible with OSPFv2.

A.TRUE

B.FALSE

Question 68

Regarding the description of the label encapsulation format in MPLS, which one is correct? (Multiple choice)

A.The total length of a single MPLS label is 4 bytes (32 bits)

B.The S field in the label: 1 bit, used to identify whether the label is a label at the bottom of the stack, when the value is 1, it is the penultimate layer label

C.The TTL field in the label is similar to the TTL (Time To Live) in the IP packet, and it also has the effect of preventing loops.

D.For Ethernet and PPP packets, the label stack is located between the layer 2 header and the data like the "underlay*": when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag

Question 69

In an MPLS network, functions such as neighbor discovery, session establishment and maintenance, and label management are implemented by exchanging LDP messages between SRs running the DP protocol. To ensure the reliability of message delivery, all LDP messages are sent and received based on TCP connections.

A.True

B.False

Question 70

There is a concept of forwarding equivalence class (FEC-Fowarding Equivalence Class) in MPLS, so FEC does not Can the allocation be made based on which of the following criteria?

A.Service type(Class of Service)

B.Application protocol(Application Protocol)

C.sFragment offset (Fragment office)

D.target address(Destination Addess)

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