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Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Exam is a certification exam that tests the advanced knowledge and skills of IT professionals in the field of routing and switching technologies. H12-831_V1.0 exam is designed for individuals who have already earned the HCIA-Datacom certification and are looking to take their expertise to the next level.
Huawei H12-831_V1.0 exam is designed to test the candidate's knowledge of advanced routing and switching technologies in areas such as network design, implementation, management, and troubleshooting. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification validates the candidate's ability to design, configure, and troubleshoot complex network infrastructures using Huawei's advanced routing and switching technologies.
Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Certification Exam is an important test for individuals who are interested in pursuing a career in data communication and networking. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is designed to validate the skills and knowledge of professionals in advanced routing and switching technologies. H12-831_V1.0 exam is intended for IT professionals who have experience in networking and want to enhance their skills in this field.
NEW QUESTION # 53
When B, CPIMPLS TP VPN is deployeD. the OSPF VPN Route Tag (VPN Route Tag) is not transmitted in the extended community attribute of MP-BGP, but the local concept is only meaningful on PE routers that receive MP-BGP routes and generate OSPF LSAs.
- A. False
- B. True
Answer: A
NEW QUESTION # 54
EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication. Which of the following BGP messages will carry BCGP Keychain authentication information? ((Multiple choice)
- A. Keepalive
- B. Notication
- C. Open
- D. Update
Answer: A,B,C,D
NEW QUESTION # 55
What is the meaning of display current-configuration I include vlan command?
- A. View eachVLANphysical interface information bound to the
- B. See what's currently createdVLAN
- C. CheckVLANIFinterfaceIPaddress
- D. View all included"VLAN"Configuration of keywords
Answer: D
NEW QUESTION # 56
In the VLAN aggregation technology, multiple Sub-VLANs are used to isolate wide-open domains, and these Sub-VLANs are aggregated.
Synthesizing a logical Super-VLAN, a company divides different departments into different Sub-VLANs, because Sub-VL AN not only includes physical connection, but also can establish three-layer VLAN ANIF interface, which can directly carry out three-layer communication with external network.
- A. True
- B. False
Answer: A
NEW QUESTION # 57
The Router-LSA generated by a router is shown in the figure. Based on this LSA, which of the following descriptions are correct? (Multiple choice)
- A. At least one interface of the router belongs to area 0
- B. The router is an ABR
- C. The router is an ASBR
- D. At least one interface of the router belongs to the Stub area
Answer: A,B
NEW QUESTION # 58
Engineer Guan used two routers to test IPv6 services. By running the BGP4+ module to communicate with the branch, as shown in Juxin, an engineer captured packets to view the Updte packets sent by R1. Which of the following statements is true about the description of the message information?
- A. The maximum and the preceding length of the routing address described in this packet is:2001:db8:2345:l::l/128
- B. The next hop address of the route described in this packet is:2001:db8:2345:l::l\
- C. This message describes the current cancellationIPv6routing
- D. This message describes only oneBGPAttribute: Multi-protocol unreachableNLRIAttributes
Answer: A,C,D
NEW QUESTION # 59
In the hub-spoke networking shown in the figure, the Hub-PE can be configured to allow repetitive local AS numbers for correct route transmission.
Is this statement TRUE or FALSE?
Options:
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding the Hub-Spoke BGP Design
* Hub-Spoke topology is commonly used in MPLS Layer 3 VPNs, where:
* Hub-PE acts as a central router.
* Spoke-PEs connect to the hub but do not communicate directly with each other.
* eBGP (External BGP) is used between the Hub-PE and Spoke-PE routers.
2. The Role of AS Numbers in BGP Route Transmission
* By default, BGP prevents routes from being sent back to the same AS (Autonomous System) to avoid loops (via the AS_PATH loop prevention mechanism).
* However, in a Hub-Spoke MPLS VPN, the Hub-PE must be allowed to re-advertise routes learned from one spoke to another spoke.
* This requires allowing repetitive AS numbers within the same AS to avoid BGP rejecting valid routes.
3. Solution: Using "Allow-AS Loop" on the Hub-PE
* The allowas-in or allow-as-loop command must be used on Hub-PE to allow repetitive local AS numbers.
* This ensures that routes from Spoke-PE1 (AS65002) are advertised to Spoke-PE2 (AS65003) via Hub-PE, even if AS numbers are repeated.
Example Configuration on Hub-PE:
plaintext
CopyEdit
bgp 65001
peer Spoke-PE1 allow-as-loop 2
peer Spoke-PE2 allow-as-loop 2
* This allows Hub-PE to accept and propagate routes even if the AS number appears more than once.
4. Evaluating the Answer Choices
Option
Correct?
Reasoning
A: TRUE
# Correct
Hub-PE can be configured to allow repetitive AS numbers using the allow-as-loop feature.
B: FALSE
# Incorrect
BGP by default prevents repeated AS numbers, but this can be overridden.
# Correct answer: A. TRUE
Final Conclusion:
* By default, BGP prevents AS loopbacks.
* Hub-PE needs to allow repetitive AS numbers for proper route transmission in the hub-spoke model.
* The "allow-as-loop" command enables this functionality.
* Thus, the correct answer is: TRUE.
NEW QUESTION # 60
On the OSPFv3 network shown in the figure:
* OSPFv3 is enabled on the interfaces connecting R1, R2, and R3.
* The router ID of each router is 10.0.X.X, where X is the number of the router.
* When checking detailed information about an LSA on R3, the command output shows that the LSA is generated by R2 and describes the IPv6 prefix address associated with the Network-LSA.
Based on this information, which of the following statements is correct?
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
To verify the correct answer, let's analyze the LSA types in OSPFv3 and how they work in the given topology.
1. Understanding OSPFv3 LSAs in the Figure
From the command output shown in the image:
* LS Type: Intra-Area-Prefix-LSA (Type 9 in OSPFv3).
* Originating Router: 10.0.2.2 (R2).
* Referenced LS Type: 0x2002, which corresponds to a Network-LSA (Type 2).
* Prefix Advertised: 2000:23::/64, which is an IPv6 prefix associated with a network segment.
2. What is an Intra-Area-Prefix LSA (Type 9) in OSPFv3?
* In OSPFv3, Type 9 LSAs (Intra-Area-Prefix LSAs) describe IPv6 prefixes associated with either Router-LSAs (Type 1) or Network-LSAs (Type 2).
* In multi-access networks (e.g., Ethernet), the DR (Designated Router) generates a Network-LSA (Type 2), which represents the shared network segment.
* R2 is likely the DR in this topology, meaning it generates a Network-LSA (Type 2) and an associated Intra-Area-Prefix LSA (Type 9) for the subnet.
3. Analyzing Why the Statement is TRUE
* R2 (10.0.2.2) is the originator of the Intra-Area-Prefix LSA (Type 9).
* The LSA references a Network-LSA (Type 2), confirming that R2 is the DR for the subnet.
* This means the LSA is correctly describing the IPv6 prefix associated with the network.
* Since the LSA is visible in R3's LSDB, R3 is learning this information from R2.
* All these points confirm that the statement is TRUE.
NEW QUESTION # 61
The following six tools cannot be used to match BGP routing entries?
- A. Community Filter
- B. IP Prefix List
- C. advancedA, CL
- D. basicA, CL
Answer: C
NEW QUESTION # 62
In the IS-IS IPv6 network shown in the figure, all routers have multi-topology enabled. The IPv6 address of the R4 Loopback0 interface is 2000::4/128.
By default, which of the following routers does not have a route to 2000::4/128 in its routing table?
- A. R3
- B. R2
- C. R1
- D. R5
Answer: D
NEW QUESTION # 63
The dir command and the Is command are used to display information about all files or specified files on the FTP server, and can also save the information about specified files to the local device.
- A. True
- B. False
Answer: A
NEW QUESTION # 64
A network engineer of an enterprise wants to save IP addresses and isolate Layer 2 mutual access by deploying VLAN aggregation and MUX VLAN. In order to save VLAN resources, the engineer can set super VLAN and MUX VAN to the same VLANID.
- A. False
- B. True
Answer: A
NEW QUESTION # 65
In the OSPFv3 network shown in the figure, area 1 is an NSSA area. R1 imports the external route 2000::1/128 into OSPFv3.
What types of LSAs are in area 0 by default? (Multiple choice)
- A. Inter-Area-Router-LSA
- B. Link-LSA
- C. Inter-Area-Prefix-LSA
- D. Intra-Area Prefix-LSA
Answer: B,C,D
NEW QUESTION # 66
When the hardware of a network device fails, you can usually use the replacement method, such as replacing the optical module, replacing the board, replacing the power module, etc. When performing the above operations, you need to wear an anti-static wrist strap.
- A. True
- B. False
Answer: A
NEW QUESTION # 67
Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is shown in the figure. ask for R1 Which router can the route entry 10.10.10.0/24 be delivered to the farthest?
AS 200
bgp 100
peer 13.X3 as-number 300
peer B3.33 connect * interface LoopBackO peer 3.33.3 route-policy COMMUNITY exporx peer 3333 next >hop-local peer Xl.3.3 advertise-cofnmunity network 10.10.T0.0 24 route^poktcy COMMUNITY permit node 10 prefix COMMUNITY spply cocYWTUiiMty route-policy COMMUNITY permit node 20 ip prefix COMMUNITr index 10 permit
- A. R3
- B. R2
- C. R4
- D. R1
Answer: A
NEW QUESTION # 68
The ipv6 enable topology standard has been set in the S-IS protocol view. The meaning of this command is:
Pv4 shares a topology with IPv6.
- A. True
- B. False
Answer: A
NEW QUESTION # 69
As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run
0SPFV3Realize network interconnection. about theOSPFV3network generatedLSA. Which of the following statement it's wrong?
- A. R1ofLSDBhaveR3producedNetwork LSA. illustrateR3may be from this linkDR
- B. R1will produceRouter-LSADescribing the device interface information will be received at the same timeR2andR3produced Router-LSA
- C. R2asA, BRWill produceInter-Area-Prefix-LSAdescribeArea 1ofIPv6address prefix, and advertise GiveR1andR3
- D. R1will receiveR2produced2indivualLink-LSA. Describe separatelyR2Information about the two links connected
Answer: D
NEW QUESTION # 70
Regarding the MPLS forwarding process, the description of Ingress node forwarding is correct:
- A. according toILMtableTunnel IDfind the correspondingNHLFEentry, willLFIBentry andNHLFEtable entry
- B. CheckNHLFETable entry, you can get outbound interface, next hop, outbound label and label operation type The label operation type isPush
- C. IngressAfter the node receives the data packet, it will first checkILMlooking forTunnel ID
- D. existIPThe obtained label is pressed into the packet, and according to theQoSPolicy processingEXRSimultaneous processingL,,Then the packagedMPLSThe packet is sent to the next hop
Answer: B,D
NEW QUESTION # 71
There is a concept of forwarding equivalence class (FEC-Fowarding Equivalence Class) in MPLS, so FEC does not Can the allocation be made based on which of the following criteria?
- A. Application protocol(Application Protocol)
- B. Service type(Class of Service)
- C. sFragment offset (Fragment office)
- D. target address(Destination Addess)
Answer: C
NEW QUESTION # 72
Which of the following information can be judged by observing the device indicator light and can also be viewed through the command line? (Multiple choice)
- A. Link Connectivity
- B. Board operating status
- C. Storage space size
- D. Version the device is running
Answer: A,B
NEW QUESTION # 73
As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the Cluster IDs of the two RRs are generally set to be the same. The reason for this is
- A. prevent suboptimal
- B. prevent loops
- C. Prevent RR from receiving too many routes and causing insufficient memory
- D. Prevent the client from receiving too many routes and causing it to run out of memory
Answer: C
NEW QUESTION # 74
An enterprise purchased the leased lines of two operators. In order to optimize the route, the enterprise used the 6GP protocol to learn routing entries of the two operators. However, the company found that after such a configuration, the traffic of the export routing increased greatly. After the network engineering investigation, it was found that the traffic of the two operators was passed to each other through the company's export router.
Therefore, the company intends to use routing strategies to prevent the traffic between different operators from passing each other. Is the configuration in the figure correct?
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 75
EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication. Which of the following BGP messages will carry BCGP Keychain authentication information? ((Multiple choice)
- A. Keepalive
- B. Open
- C. Update
- D. Notification
Answer: A,B,C,D
NEW QUESTION # 76
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