Practice Free H12-831_V1.0-ENU Exam Online Questions

The network administrator has deployed the IPSG function on the switch to prevent IP address spoofing attacks.

Among the device interfaces shown in the figure, which interfaces will not perform IPSG checks after receiving packets? (Multiple choice)

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On the network shown in the figure, the DHCP server function is enabled on GE0/0/0 of R2, and the address pool is an interface address pool. When GE0/0/0 and GE0/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.

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As shown in the figure, the administrator wants to enable the MPLS LDP function of devices R1~R4.

Which of the following configurations about R1 is correct?

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On a stable network that requires fast route convergence, you can change the value of the interval at which OSPF LSAs are updated to 0 so that topology or route changes can be immediately advertised on the network through LSAs, which speeds up route convergence.

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In the MPLS network, the administrator deploys end-to-end QoS function at the same time. Then the penultimate hop device in the MPLS network can pop out the MPLS label based on the PHP feature, so that the Egress can process the message based on the QoS priority of the inner message.

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I-SPF and PRC can improve the convergence speed of IS-IS routes. They both recalculate only the changed routes. The difference is that PRC does not need to calculate the node path, but updates the route based on the SPT calculated by I-SPF.

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On the same switch interface, the administrator can only configure traffic suppression for one of the following: broadcast, unknown multicast, unknown unicast, known multicast, and known unicast packets.

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An MPLS label is a 20-bit local identifier. Its label space is divided into special labels, static shared label space, and dynamic signaling protocol label space.

Which of the following are special labels? (Multiple choice)

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In the OSPFv3 network shown in the figure, the interfaces of R1 and R2 both have two IPv6 addresses. Although the prefix lengths of the IPv6 addresses of R1 and R2 are different, they can still establish an OSPFv3 neighbor relationship. If R2 is the DR, then the Intra-Area-Prefix-LSA generated by R2 will contain four prefixes.

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Which of the following commands must the administrator configure when enabling the MPLS LDP function on the GE0/0/1 interface of the device? (Multiple choice)

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