Practice Free H12-831_V1.0-ENU Exam Online Questions
As shown in the figure, in order to realize the correct transmission of VPN routes in the Hub&Spoke network, the administrator deployed IGP between Hub-PE and Hub-CE, and deployed EBGP between Spoke-PE and Spoke-CE.
- A . True
- B . False
Although adjacency will be formed between routers of the same level on the same network segment of IS-IS in the broadcast network, that is, adjacency will be formed between all non- DIS routers, in the implementation of IS-IS and BFD linkage, BFD sessions are only established between DIS and non-DIS, and BFD sessions are not started between non-DIS.
- A . True
- B . False
In the network shown in the figure, adjacent routers use directly connected interfaces to establish EBGP neighbor relationships. The AS number is 6500X, where X is the router number. R1 and R4 both have static routes to 192.168.1.0/24, which are introduced into BGP through import. The maximum number of equal-cost routes configured for EBGP load sharing on R3 is 8.
By default, the number of equal-cost routes from R3 to 192.168.1.0/24 is which of the following?
- A . 2
- B . 8
- C . 1
- D . 3
In a BGP/MPLS IP VPN network, VPNv4 routing transfer will carry RD values.
Which of the following path attributes does MP-BGP use to carry the RD value?
- A . AS_Path
- B . Local_Preference
- C . Extended_Commumity
- D . MP_REACH_NLRI
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is 49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, where R2 and R5 are RRs and R1, R4, R3, and R6 are clients. R2 and R5 also establish an IBGP neighbor relationship and configure the same Cluster ID. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.X.X, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through import.
For 192.168.1.0/24, match based on the number of valid routes in the BGP routing table.
Explanation:
A-1, B-2, B-3, B-5, B-6, C-4
For high reliability purposes, the following LDP messages are transmitted through TCP: discovery messages, session messages, advertisement messages, and notification messages.
- A . TRUE
- B . FALSE
For the OSPF network shown in the figure, please drag the values on the left to the correct position so that the traffic from PC1 to PC2 is PC1-R1-R3-R2-PC2: the traffic from PC2 to PC1 is PC2-R2-R1-PC1.
Explanation:
A-3, B-1, C-2
As shown in the figure, the message is forwarded based on MPLS in the network.
When PE2 receives the message sent by P2, which of the following is the label value carried in the message?
- A . The label value is 3.
- B . There is no label.
- C . The label value is 1033.
- D . The label values are 3 and 1033.
In the OSPFv3 network shown in the figure, the OSPFv3 related parameters are the default configuration. When checking the LSDB on one of the devices, some content is omitted in the LSDB. The Router IDs of R1, R3, and R4 are 10.0.1.1, 10.0.3.3, and 10.0.4, respectively. The Origin Router part of some LSAs is hidden. Please complete this part.
As shown in the figure, the VRRP virtual IP address of network R1 and R2 is configured as 10.0.12.254. After the configuration is completed, the network engineer checks the VRRP status on R1 and R2. Both devices are in the Master state.
Which of the following will not cause this phenomenon?
- A . R1 and R2 have different priorities in the VRRP backup group.
- B . SW1 GE0/0/1 and GE0/0/2 interfaces belong to different VLANs
- C . The virtual IP addresses configured on R1 and R2 are inconsistent
- D . VRIDs configured on R1 and R2 are inconsistent