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| Section | Weight | Objectives |
|---|---|---|
| Network O&M | 7% | - Performance optimization and capacity planning - Network monitoring and management tools |
| MPLS Technologies | 19% | - MPLS basics and label distribution - MPLS protection and fast reroute - MPLS VPN and traffic engineering |
| Network Troubleshooting | 10% | - Fault diagnosis and analysis methods - Troubleshooting routing and switching issues |
| Advanced BGP Features | 10% | - Route reflectors and confederations - BGP path control and filtering - BGP route attributes and policies |
| Advanced Ethernet Technologies | 10% | - Advanced link aggregation and reliability - Ethernet OAM and protection mechanisms - VLAN stacking and QinQ |
| IPv6 Routing | 20% | - BGP4+ and IPv6 route deployment - IPv6 addressing and transition technologies - OSPFv3 and IS-IS for IPv6 |
| Network Cutover and Migration | 7% | - Service switchover and verification - Migration strategies and risk control |
| Advanced IGP Features | 17% | - IGP route selection and control - OSPF advanced features and optimization - IS-IS advanced features and convergence |
>> H12-831_V1.0-ENU Valid Test Papers <<
The HCIP-Datacom-Advanced Routing & Switching Technology V1.0 H12-831_V1.0-ENU pdf questions and practice tests are designed and verified by a qualified team of H12-831_V1.0-ENU exam trainers. They strive hard and make sure the top standard and relevancy of HCIP-Datacom-Advanced Routing & Switching Technology V1.0 H12-831_V1.0-ENU Exam Questions. So rest assured that with the H12-831_V1.0-ENU real questions you will get everything that you need to prepare and pass the challenging HCIP-Datacom-Advanced Routing & Switching Technology V1.0 H12-831_V1.0-ENU exam with good scores.
NEW QUESTION # 63
When a fault occurs on an OSPF network, traffic can be switched to another path only after several phases.
Sort these phases in the correct sequence.
Answer:
Explanation:
Explanation:
When OSPF detects a failure in the network, it performs a series of actions to ensure traffic is rerouted to a valid path. The phases occur in this strict order:
* # Fault Detection (A)
* OSPF routers use Hello packets to maintain neighbor relationships.
* If a Hello timeout or link down is detected, the fault is immediately recognized.
* # LSA Update (B)
* Upon detecting a failure, the router generates a new LSA (e.g., a Router-LSA or Network-LSA) and floods it to all other routers in the same area.
* This LSA communicates the change in network topology.
* # Route Calculation (C)
* Each router that receives the updated LSAs runs the SPF algorithm to recompute the best path to every destination.
* # Entry Delivery to the FIB (D)
* After recalculating the routes, the router installs the new forwarding entries into the FIB (Forwarding Information Base), allowing data to be forwarded along the new optimal path.
# Official Huawei Reference:
" OSPF convergence after a network failure consists of fault detection, LSA flooding, SPF calculation, and updating the FIB. Each step must be completed for traffic to resume correctly on alternate paths. "
- [Huawei HCIA-Datacom Certification Guide - Chapter: OSPF Convergence and SPF Algorithm]
NEW QUESTION # 64
In BGPIMPLS IP VPN, if the OSPF protocol is used between PEs and CEs to exchange routing information, the domain identifier (Domain ID) is used to distinguish whether the incoming routes in the VPI instance come from the same OSPF domain.
Answer: A
NEW QUESTION # 65
In the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA area. The IPv6 address of the R5 Lopback0 interface is 2000::5/128, which is introduced into OSPFv3 through import. The Router ID of each device is 10.0.XX, where X is the device number.
Which of the following descriptions is correct?
Answer: A
NEW QUESTION # 66
On the OSPFv3 network shown in the figure, the LSDB of R2 contains _____ Router-LSAs. (Enter only digits.)
Answer:
Explanation:
3
Explanation:
OSPFv3 uses Router-LSAs to describe the routing topology of individual routers within an OSPF area.
Each OSPFv3 router originates a Router-LSA for every area to which its OSPFv3 interfaces belong. Router- LSAs contain information about link types, interface identifiers, neighboring routers, and link costs.
In the displayed topology, R1, R2, and R3 all participate in OSPFv3 Area 0. Because Router-LSAs have area flooding scope, each participating router receives the Router-LSAs generated by the other routers in that area.
Consequently, R2 ' s Area 0 link-state database contains Router-LSAs originated by R1, R2, and R3.
The three routers form one common OSPFv3 area, and no additional area or router is shown.
Therefore, the total number of Router-LSAs in the relevant LSDB is 3.
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Training Material.pdf
NEW QUESTION # 67
On the OSPF network shown in the figure, area 1 is an NSSA , area 2 is a stub area , and R4 imports an external route 10.0.4.4/32 . The router ID of each router is 10.0.X.X , where X is the router number . The asbr-summary 10.0.4.0 255.255.255.0 command is configured in the OSPF processes of R1 and R3 .
Match the following descriptions of routing tables with the corresponding routers :
Answer:
Explanation:
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Key OSPF Concepts to Consider:
* Area 1 is an NSSA (Not-So-Stubby Area):
* NSSAs allow external routes but advertise them as Type-7 LSAs.
* The ABR (R2) converts these Type-7 LSAs into Type-5 LSAs for the backbone (Area 0).
* Area 2 is a Stub Area:
* Stub areas do not allow external routes (Type-5 LSAs) .
* This means that R5 (inside Area 2) will NOT receive external routes like 10.0.4.4/32 or
10.0.4.0/24 .
* Effect of asbr-summary 10.0.4.0 255.255.255.0 on R1 and R3:
* This command ensures that R1 and R3 will see a summarized route 10.0.4.0/24 instead of specific /32 routes .
Routing Table Analysis:
* R1 (ABR for NSSA, with ASBR summary configured)
* Connected to Area 1 (NSSA) and Area 0 (Backbone)
* Since asbr-summary 10.0.4.0 255.255.255.0 is configured on R1, it contains both 10.0.4.4/32 (from R4) and the summarized 10.0.4.0/24 .
* # Matches Option 4: The routing table contains both 10.0.4.4/32 and 10.0.4.0/24.
* R5 (Inside Area 2 - Stub Area)
* Stub areas do not receive external routes (Type-5 LSAs) .
* Since R5 is inside a stub area, it does not contain 10.0.4.4/32 or 10.0.4.0/24 .
* # Matches Option 3: The routing table does not contain 10.0.4.4/32 or 10.0.4.0/24.
* R2 (ABR between NSSA and Backbone, but no ASBR summary configured)
* R2 converts Type-7 LSAs from R4 into Type-5 LSAs and advertises them into Area 0.
* Since no ASBR summary is configured on R2 , it only sees the specific external route 10.0.4.4
/32 but not the summarized 10.0.4.0/24 .
* # Matches Option 1: The routing table contains 10.0.4.4/32 only.
* R3 (Another ABR with ASBR summary configured)
* R3 has asbr-summary 10.0.4.0 255.255.255.0 configured, which means it will summarize the external routes.
* Instead of 10.0.4.4/32, R3 will only have the summarized 10.0.4.0/24 route.
* # Matches Option 2: The routing table contains 10.0.4.0/24 only.
References:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPF Areas (Stub, NSSA, and Backbone) OSPF External Route Advertisement and Summarization OSPF NSSA Behavior and Type-7 to Type-5 Conversion
NEW QUESTION # 68
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