最新なHuawei H31-161問題集（180題）、真実試験の問題を全部にカバー！

質問 1：
Which of the following statements about the L2VPN are true?
A. If the length of a L2VPN packet that arrives at a P node exceeds the maximum transmission unit (MTU) of relevant interfaces of the P node, the packet will be fragmented and then forwarded.
B. On a L2VPN, routing information of users does not need to be maintained or managed.
C. When a traditional L2VPN (ATM and FR) is upgraded to an MPLS L2VPN, the network topology does not need to be adjusted.
D. When providing the MPLS L2VPN service for enterprise users, the carrier must filter user route advertisements. Otherwise, flapping of user routes may lead to flapping of network routes.
正解：B,C

質問 2：
Which of the following statements about the Martini VPLS are true?
A. Labels are retained using the liberal label retention method.
B. A VC must be established using remote LDP.
C. When LDP is used to transmit signaling, LDP TLVs carry the VPLS information.
D. Labels are allocated for PWs in DoD mode when they are established.
E. Labels are allocated for PWs in DU mode when they are established.
正解：A,E

質問 3：
Which of the following are rules for the router to check the RPF after receiving SA messages from the MSDP?
A. Query the BGP route and then the MBGP route
B. Query the MBGP route and then the BGP route
C. Check the RPF based on the next hop of the route that reaches the source RP.
D. Check the RPF based on the source RP contained in the received SA message.
正解：B,C,D

質問 4：
Exhibit:

As shown in the figure, Super VLAN is enabled on SWA (a LAN switch). The Super VLAN configuration is as follows:

Which of the following specifics the time order in which the preceding debugging information is generated?
A. 1--4--2--3
B. 3--4--1--2
C. 1--2--3--4
D. 3--2--1--4
正解：D

質問 5：
Which of the following statements about IGP Shortcut and FA are true?
A. If FA is enabled on an MPLS TE tunnel, the MPLS TE tunnel can be shared by other routers.
B. OSPF BFD does not need to be applied to IGP Shortcut-enabled tunnels.
C. When IGP Shortcut is enabled, MPLS TE tunnels can be advertised to routers as if they are links.
D. An MPLS TE tunnel is viewed as a link and the MPLS TE tunnel interface is used as the outbound interface of a route.
正解：A,B,D

質問 6：
Exhibit:

RTA is an edge route of the MPLS backbone network. It provides the access for users under layer 2 switches and differentiates user by subinterface. User access VALN 100 and has subscribed to the His ViIP , and services. According to 802 1p priorities, the value 0 indicates the HIS service, 1 indicates the VoIp service and 4 indicate the IPTV service. The DiffSerc model is deployed in E-LSP mode on the MPLS network, And the STC is configured for subinterface on the access side of RTA (the qos phb disable command is not configured). Outgoing on the traffic on the G1/0/0.1 suninterface involves the His VoIP, and services on the access side of RTA.
Which statements about EXP about values corresponding to these three services is true?
A. Only one EXP may be contained, and the value is uncertain
B. Only two EXP values be contains, and the values are certain.
C. The EXP values must be 0, 1, and 4.
D. At least three EXP values be contained, and the values are uncertain.
正解：D