H12-831_V1.0-ENU Exam Questions Get Updated [2022] with Correct Answers
Practice H12-831_V1.0-ENU Questions With Certification guide Q&A from Training Expert DumpsQuestion
NEW QUESTION 40
Which of the following is not a hardware preparation item for cutover?
- A. Device version check
- B. Cable connectivity test
- C. Power-on test
- D. Test the operation of the board
Answer: A
NEW QUESTION 41
A router Network LSA is shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. The Router ID of this router is 10.0.12.2
- B. The network segment where the router is located is 10.0.12.0 24
- C. The DR priority of the router is 100
- D. This router is DR
Answer: A,B,D
NEW QUESTION 42
As shown in the figure, network administrator A on the R1 router, after modifying the Local Preference value of the routing entry sent to R2 through the routing policy, can control the path of traffic leaving AS100.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 43
Regarding the difference between NSR and NSF, which one is correct?
- A. Both NSR and NSF need neighbor routers to complete
- B. NSR must rely on neighbor routers to complete
- C. NSF does not need neighbor routers to complete
- D. NSF must rely on neighbor routers to complete
Answer: D
NEW QUESTION 44
In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following descriptions are correct about the processing of the data packet? (Multiple choice)
- A. The Egress PE device receives untagged IP packets
- B. The outer label of the packet received by the penultimate hop device is 3
- C. The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device
- D. The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label
Answer: C,D
NEW QUESTION 45
As shown in the figure:
- A. The LSA in the figure is generated by this router
- B. This device is ABR
- C. The type of the LSA is AS-exterma1-LSA
- D. The destination network described by this LSA is 10.0.23.0/24
Answer: D
NEW QUESTION 46
MPLS has always been slower than IP forwarding.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 47
When deploying MPLS/BGP IP VPN, regarding the use of BGP to exchange routing information between PE-CE, which of the following description is wrong?
- A. When BGP is used to exchange routing information between PE and CE, there is no need to import BGP private network routes on PE
- B. In the case of CE multi-homing, enabling the BGP AS number replacement function may cause routing loops, which can be used to prevent routing loops in VPN sites through BGP SoD
- C. In the Hub&Spoke scenario, when Hub-CE and Hub-PE use IGP, Spoke-PE and Spoke-CE cannot enable EBGP
- D. When PE and CE use BGP to exchange routing information, if the autonomous systems of two VPN sites use the same private AS number, the AS number replacement function can be used, that is, the received AS number can be replaced with any designated AS number. The AS number in the private network route to prevent the route from being discarded due to repeated AS numbers
Answer: D
NEW QUESTION 48
In an MPLS network, SR running the DP protocol exchange LDP messages to realize functions such as neighbor discovery, session establishment and maintenance, and label management. In order to ensure the reliability of message delivery, all sending and receiving of LDP messages must be based on TCP connections.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 49
Which of the following statements about the OSPFv3 message format is correct? (Multiple choice)
- A. Hello message no longer contains address information and Interface ID
- B. There is no change in the option field of the Hello message
- C. OSPF version number changed from 2 to 3
- D. Removed Authentication and Auth Type fields
Answer: A,C,D
NEW QUESTION 50
When OSPFv2 evolves to OSPFv3, the format and function of LSA are exactly the same, except that the network layer address in LSA changes from IPv4 to IPv6.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 51
Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on the PE?
- A. display vpnv4 bgp routing-table
- B. display bgp routing-table ipv4-family vpnv4
- C. display bgp vpnv4 routing-table
- D. display bgp routing-table address-family vpnv4
Answer: C
NEW QUESTION 52
Which of the following statements about the freeway of LDP label retention is correct? (Multiple choice)
- A. Need more memory and label space
- B. Keep all labels distributed by neighbors
- C. Only keep labels from next-hop neighbors, discard all labels sent by non-next-hop neighbors
- D. Save memory and label space
Answer: A,B
NEW QUESTION 53
Which of the following statements about VLAN aggregation is correct? (Multiple choice)
- A. Super-VLAN only contains physical interfaces and cannot establish a Layer 3 VLANIF interface
- B. Sub-VLAN is used to isolate the broadcast domain
- C. Sub-VLAN contains physical interfaces. A three-layer VLANIF interface can be established
- D. A Super-VLAN can contain one or more SUb-VLANs
Answer: B,D
NEW QUESTION 54
In addition to the virtual link, what type of IPv6 address is the source IPv6 address of the He11o packet of OSPFv3?
- A. Link local address
- B. Global unicast address
- C. IPv6 anycast address
- D. Unique local address
Answer: A
NEW QUESTION 55
According to this figure, it can be known that in VLAN300, 0 MAC drift occurred by 00e0-fc3d-3bdb from 17:22:38 to 17:22.44 on 2020-06-04.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 56
What is the flooding scope in OSPFv3 for the LSA in the entire autonomous system?
- A. Inter-Area-Prefix-LSA
- B. Intra-Area-Prefix-LSA
- C. As-external-LSA
- D. Link-LSA
Answer: B
NEW QUESTION 57
Configure under a certain interface: isis timer hello 5 leve1-2, which of the following statements is correct?
- A. The interval for sending Level-2 hello packets on this interface is 5s
- B. The hello packet sending interval of Level-1 and Leval-2 of this interface is 3s.
- C. The interval for sending Level-2 CSNP packets of this interface is 5s
- D. The interval for sending Level-1 hello packets on this interface is 5s
Answer: A
NEW QUESTION 58
OSFFv2 is an IGP running on an IPv4 network: OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, SPFV3 has a similar LSA type, but the function is slightly different. Which of the following is not included in the LSA type of OSPFv3?
- A. AS-External-LSA
- B. Network-LSA
- C. ASBR-Summary-LSA
- D. Router-LSA
Answer: C
NEW QUESTION 59
In BGP/MPLS IP VPN, the OSPF multi-instance process uses the DN bit to prevent Type5 LSA loops.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 60
The link state value information between different ISIS processes of multiple routers is considered to be isolated.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 61
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