H12-831_V1.0 Probesfragen, H12-831_V1.0 Prüfungs

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Huawei H12-831_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: IPv6 Routing20%- OSPFv3
- IPv6 static routes
- IS-IS for IPv6
- BGP4+
Topic 2: MPLS Technologies19%- MPLS VPN applications
- MPLS forwarding
- MPLS principles
- MPLS configuration
Topic 3: Network Cutover7%- Basic cutover concepts
- Migration process
Topic 4: Advanced IGP Features17%- IS-IS advanced features
- Route control
- OSPF advanced features
- Fast convergence
Topic 5: Network O&M7%- Routine maintenance
- Data collection
Topic 6: Advanced Ethernet Technologies10%- Ethernet security
- VLANs
Topic 7: Advanced BGP Features10%- Inter-domain routing optimization
- BGP route control
- Advanced BGP features
- Route reflectors
Topic 8: Network Troubleshooting10%- Structured troubleshooting processes
- Troubleshooting methods

>> H12-831_V1.0 Probesfragen <<

Echte H12-831_V1.0 Fragen und Antworten der H12-831_V1.0 Zertifizierungsprüfung

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 H12-831_V1.0 Prüfungsfragen mit Lösungen (Q224-Q229):

224. Frage
Network administrators can run the clock time zone command to set the time zone of a device. If two network devices have different time zone settings, they cannot establish a neighbor relationship using a dynamic routing protocol.

Antwort: B


225. Frage
The figure shows the LSP information of R1 and R3 on an MPLS network. An administrator runs the ping -a
1.1.1.1 3.3.3.3 command on R1. Given this, which of the following statements is true?

Antwort: C


226. Frage
In the IS-IS network shown in the figure, the link cost value has been marked in the figure. R1 turns on IS-IS Auto FRR, then the main path for R1 to reach 10.0.3.3/32 is R1- R2-R3, and the backup path is R1-R4-R2-R3.

Antwort: B


227. Frage
On the OSPFv3 network shown in the figure, area 1 is a stub area .

Which of the following LSAs is generated by only one router ?

Antwort: A

Begründung:
Comprehensive and Detailed In-Depth Explanation:
Understanding OSPFv3 LSA Types
* OSPFv3 uses different LSA types than OSPFv2 , with some being similar in function:
* Link-LSA (Type 8): Generated by every router on a link to advertise link-local IPv6 information.
* Intra-Area-Prefix-LSA (Type 9): Advertises IPv6 prefixes within an area.
* Network-LSA (Type 2): Generated only by the Designated Router (DR) to advertise information about all routers on a multi-access network.
* Inter-Area-Prefix-LSA (Type 3): Advertises network prefixes between OSPF areas (generated by ABRs).
Route Distribution Analysis:
A). Inter-Area-Prefix-LSA (Type 3) # (Incorrect)
* Generated by an ABR to advertise prefixes between OSPF areas.
* More than one ABR can generate this LSA.
# Not always generated by only one router.
B). Link-LSA (Type 8) # (Incorrect)
* Each router generates its own Link-LSA for each link it participates in.
* This means multiple routers can generate this LSA.
# Not generated by only one router.
C). Network-LSA (Type 2) # (Correct)
* Generated ONLY by the Designated Router (DR) on a multi-access network (such as an Ethernet link).
* Other routers do not generate this LSA, only the DR does.
# Correct answer: This LSA is generated by only one router (the DR).
D). Intra-Area-Prefix-LSA (Type 9) # (Incorrect)
* Generated by any router to advertise IPv6 prefixes within an area.
* Multiple routers in an area can generate this LSA.
# Not generated by only one router.
Final Conclusion:
# C. Network-LSA (Type 2) is the correct answer because it is generated by only one router-the Designated Router (DR).
Thus, the correct answer is: C. Network-LSA .
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPFv3 LSA Types and Multi-Area Behavior Huawei Official HCIP-Datacom Study Guide - OSPFv3 Stub Areas and LSA Advertisements Huawei Documentation on OSPFv3 DR/BDR Roles and LSA Generation


228. Frage
In the figure, an administrator needs to enable MPLS LDP on R1 to R4. Which of the following configurations of R1 is correct?

Antwort: A

Begründung:
Comprehensive and Detailed In-Depth Explanation:
To determine the correct configuration, we need to analyze how MPLS LDP (Label Distribution Protocol) is correctly enabled on a Huawei router.
1. Required Steps to Enable MPLS LDP on R1
To enable MPLS LDP on R1 and establish LDP sessions, the following steps must be followed:
# Step 1: Configure the MPLS LSR ID (Loopback IP recommended)
* MPLS LSR ID is a unique identifier for the Label Switch Router (LSR).
* Command:
shell
CopyEdit
mpls lsr-id 1.1.1.1
* Why?
* The LSR ID must be configured for LDP to function properly in an MPLS network.
* It is usually set to a loopback address for stability and consistency.
# Step 2: Enable MPLS Globally
* Command:
shell
CopyEdit
mpls
* Why?
* This enables MPLS forwarding on the device.
# Step 3: Enable MPLS LDP Globally
* Command:
shell
CopyEdit
mpls ldp
* Why?
* LDP is needed for label distribution in the MPLS domain.
* Without this, routers cannot exchange MPLS labels.
# Step 4: Enable MPLS and LDP on the Required Interface
* Command:
shell
CopyEdit
interface gigabitethernet 0/0/1
mpls
mpls ldp
* Why?
* MPLS must be enabled on interfaces that participate in MPLS forwarding.
* LDP must also be enabled on these interfaces to distribute labels over MPLS links.
2. Analyzing the Answer Choices
# Option B (Correct)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1 # (Sets LSR ID)
[R1] mpls # (Enables MPLS globally)
[R1-mpls] quit
[R1] mpls ldp # (Enables LDP globally)
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls # (Enables MPLS on interface)
[R1-GigabitEthernet0/0/1] mpls ldp # (Enables LDP on interface)
[R1-GigabitEthernet0/0/1] quit
* This configuration correctly enables MPLS LDP on R1.
* All required steps are followed, including the LSR ID, MPLS, LDP, and interface activation.
# Option A (Incorrect)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1
[R1] mpls
[R1-mpls] quit
[R1] mpls ldp
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls #
[R1-GigabitEthernet0/0/1] quit # (Missing " mpls ldp " under interface)
* Missing mpls ldp under interface configuration.
* Without this, the interface will not establish an LDP session # Incorrect.
# Option C (Incorrect)
shell
CopyEdit
[R1] mpls
[R1-mpls] quit
[R1] mpls ldp
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls
[R1-GigabitEthernet0/0/1] mpls ldp
[R1-GigabitEthernet0/0/1] quit
* Missing mpls lsr-id 1.1.1.1.
* LSR ID is critical for LDP sessions # Incorrect.
# Option D (Incorrect)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1
[R1] mpls
[R1-mpls] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls
[R1-GigabitEthernet0/0/1] mpls ldp
[R1-GigabitEthernet0/0/1] quit
* Missing global MPLS LDP configuration (mpls ldp).
* Without enabling LDP globally, labels will not be distributed.
* This makes LDP sessions fail. # Incorrect.


229. Frage
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