最新なHuawei H12-261-ENU問題集（525題）、真実試験の問題を全部にカバー！

質問 1：
Combined with the output of the following figure, which of the following judgment is correct? (Multiple choice)

A. The system ID of the R3 router is 0003.0000.0000
B. R3 must be a DIS of a level-2 link
C. R3 router is a level-2 router
D. R3 must be a DIS of a level-1 link
正解：A,B

質問 2：
Regarding the BGP anti-ring mechanism, which of the following description is correct? (Multiple Choice)
A. Use the AS_PATH attribute between autonomous systems to prevent loops.
B. The Cluster List attribute is used for the anti-ring in the reflector cluster. If the router discovers that the cluster list of the route entry contains its own cluster ID, it will reject the route.
C. You can use the AS_CONFED_SET attribute to prevent loops within the federation.
D. Routes learned from IBGP are not advertised to IBGP neighbors to prevent routing loops within the AS.
正解：A,C,D

質問 3：
An engineer performs an import operation on an OSPF router in a company network. The following statement about the introduction of a route LSA, which is correct? (Multiple Choice)
A. link state id is set to the destination network segment address
B. netmask is set to 0
C. Use link state id and advertising router to uniquely identify an LSA
D. The Advertising Route is set to the router-id of the ASBR.
正解：A,D

質問 4：
User wants to enable the router for packets forwarding and routing according to the policy defined by itself based on the traditional route forwarding.
To achieve this goal, policy routing can be employed.
Which of the following about the description of policy routing is wrong?
A. Policy routing can set the next hop IP address
B. Policy routing cannot be used to set IP Precedence
C. Policy routing can be used to match the packet length
D. Policy routing cannot set DSCP in a statement
正解：B

質問 5：
Which of the following options is correct for the description of the optimal routing elections for various protocols?
A. Learn different routing entries to the same destination network segment from BGP and OSPF, and select the optimal route to join the IP routing table by comparing the preference value of the protocol.
B. The route with the next hop unreachable in BGP is also put into the IP routing table.
C. Select the best route to the same destination network segment by comparing the cost value of the route entry in BGP protocol.
D. OSPF puts all routing information in the LSDP into the IP routing table.
正解：A

質問 6：
In the intranet MPLS BGP VPNF network, when a packet enters the public network for forwarding, it will be encapsulated with two layers of MPLS labels. The following description of the two-layer label, which is wrong?
A. The private network label is carried and distributed when the route is delivered by MP-BGP. The public network label is distributed by the LDP protocol.
B. By default, the router assigns the same label value to all VPNv4 routes destined for the peer PE.
C. The egress PE uses the inner label when determining which egress CE the message should be sent to.
D. MPLS BGP VPN uses two layers of labels: public network labels (also known as outer labels) and private network labels (also known as inner labels).
正解：B

質問 7：
Regarding the way the device handles packets in the MPLS network model, which of the following descriptions are wrong? (Multiple Choice)
A. LSR must not strip labels.
B. The device discards the IP packets that enter the MPLS domain.
C. The label forwarding path LSP is determined and established through various protocols during the forwarding of the packet.
D. Both LER and LSR will carry out label distribution.
正解：A,B,C

質問 8：
If multiple candidate RPs are configured in a certain group of multicasts, which of the following parameters need to be compared between the multiple candidate RPs? (Multiple Choice)
A. C-RP priority
B. Number of the C-RP interface
C. Group-wide mask length of the C-RP service matching the group address to which the user joins
D. IP address of the C-RP interface
正解：A,C,D