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 will cause an MPLS L2VPN VC to be Down?
A. Interfaces connecting PEs to CEs use VLAN encapsulation, but the VLAN IDs are different.
B. In Martini L2VPN, interfaces connecting PEs to CEs at both ends of a VC are configured with different VC IDs.
C. In Kompella L2VPN, the two PEs allocate the same CE ID for the CEs connected to them.
D. Public LDP LSP tunnels are not Up.
正解：C,D

質問 2：
Which of the following statements about the relationship between the SPE and the UPE are false?
A. The SPE manages and advertises VPN routes. It maintains all routes on the VPN it is connected to through UPEs, including routes of local and remote sites. The SPE, however, does not advertise routes of remote sites to the UPE, but only advertises the labeled default routes or aggregate routes of VPN instances.
B. The UPE provides access service for users. It maintains the routes of the VPN sites it is directly connected to and sometimes aggregates routes of remote VPN sites. In addition, a UPE allocates inner labels for routes of the sites directly connected to the UPE and advertises VPN routes with these labels to an SPE through MP-BGP.
C. The SPE has a large routing table, which provides excellent forwarding performance and access capability, whereas the UPE has a small routing table and poor forwarding performance, but occupies fewer interface resources.
D. The SPE and UPE are relative to each other. In a hierarchical PE structure, a PE on the upper layer is the SPE to PEs on the lower layer, and these lower-layer PEs are UPEs to the SPE. However, the hierarchical PE cannot coexist with common PEs on an MPLS network.
E. When MP-IBGP is deployed between an SPE and UPEs, the SPE can function as the RR of these UPEs so that routes can be advertised between IBGP peers. It is not recommended that an SPE serving as the RR of UPEs still reflect routes between other PEs so that routes on UPEs can be reduced. A UPE and an SPE communicate through a physical interface, subinterface, or tunnel interface. When the tunnel interface is configured, only one MPLS network is allowed between them and labeled packets are transferred through tunnels. Their communication may fail if the MPLS network is replaced with an IP network.
正解：C,D

質問 3：
Which statement about the OSPF VPN is true? (B)
A. A VPN instance can include multiple OSPF processes. An OSPF process can be bound to multiple VPN instances.
B. An OSPF process can be configured with one or multiple primary domain IDs.
C. OSPF ASs are differentiated by domain ID. Therefore, devices within one AS must be configured with the same domain ID.
D. When a PE is an OSPF ABR, the PE is connected to a CE only in a non-backbone OSPF area.
正解：C

質問 4：
Which statement about the Ethernet clock synchronization technology used m actual solutions is true?
A. The 802 1aS technology requires the intermediate node to support transparent clock transmission
B. The NTP technology requires the intermediate node to support transparent clock transmission
C. The IEEE 1588 technology requites the intermediate node to support transparent clock transmission
D. The CES packet recovery technology requires the intermediate node lo support transparent clock transmission
正解：C

質問 5：
Exhibit:

As shown in the figure, complex traffic classification is configured for RTA's upstream GigabitEthernet 1/0/0. The QoS is configured as follows:

A tester sends TCP packets from GE 1/1 to GE 1/2 at 40 1.2.2 IF DSCP values of packets GE receives are not 46, what are the possible causes?
A. DSCP values of sent packets are not 10.
B. STC is disabled at RTA's GigabitEthernet 1/0/0.
C. The default mapping from the EF value to the DDCP value is modified
D. The qos phb command is enabled on RTA's GigabitEthernet1/0/0.
正解：A

質問 6：
According to the inter-AS VPN Option A, which protocol is used to forward traffic between ASBRs?
A. MPLS
B. IP
C. A or B
D. None of the above
正解：B