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Huawei H12-831_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Network Cutover	7%	- Post-cutover validation - Pre-cutover verification - Implementation and rollback strategy - Cutover planning and risk assessment
Topic 2: MPLS Technologies	19%	- MPLS fundamentals and label distribution - LDP and RSVP-TE protocols - MPLS VPN (L3VPN, L2VPN) - MPLS OAM and protection
Topic 3: Network O&M	7%	- Network monitoring and performance analysis - Configuration management and backup - Routine maintenance procedures - Log and alarm management
Topic 4: Advanced Ethernet Technologies	10%	- Port isolation and security features - VLAN aggregation and MUX VLAN - Ethernet link aggregation and reliability - QinQ and VLAN mapping
Topic 5: Network Troubleshooting	10%	- Structured troubleshooting methodology - Switching and link fault handling - Routing protocol fault diagnosis - Performance and service fault resolution
Topic 6: Advanced BGP Features	10%	- Routing policies and filtering - Route reflectors and confederations - BGP multi-homing and load balancing - BGP route selection and attributes
Topic 7: Advanced IGP Features	17%	- IS-IS advanced features 1. Convergence optimization 2. Route aggregation 3. Level-1/Level-2 routing control - OSPF advanced features 1. Route summarization and filtering 2. Fast convergence technologies 3. Special area types and applications
Topic 8: IPv6 Routing	20%	- BGP4+ for IPv6 - IPv6 address planning and configuration - OSPFv3 and IS-IS for IPv6 - Transition mechanisms (dual-stack, tunnel, translation)

Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:

1. In the OSPP network shown in the figure, R1 and R2 achieve Lopback0 interface interconnection through OSPF.

At the same time, R1 and R2 have enabled the MPLS LDP function, and the LDP transmission address is the IP address of the Loopback0 interface. The network engineer found that R1 and R2 could not establish an LDP session, so he first executed the command shown in the figure on R2. Based on this, which of the following reasons may cause the failure of establishing an LDP session between R1 and R2? (Multiple choice)

A) R1 GE0/0/1 interface refuses to receive ICP packets with destination port 646
B) R1 GE0/0/1 interface refuses to receive packets with a destination IP address of 224.0.0.5
C) R2 GE0/0/1 interface refuses to receive packets with source IP address 10.0.12.1
D) R2 GEO/0/1 interface refuses to receive packets with a destination IP address of 224.0.0.2

2. LSR (Label Switching Router) discovers LDP peers through the LDP discovery mechanism and establishes LDP sessions. Which of the following descriptions of LDP sessions are correct?
(Multiple choice)

A) LSR sends Hello message based on UDP
B) The LSR with a larger transmission address actively initiates the establishment of a TCP link
C) LSR can establish a local LDP session or a remote LDP session based on the LDP discovery mechanism
D) LSR discovers LDP peers by sending multicast or unicast Hello messages

3. IS-IS LSP fragments are identified by the LSP Number field in the LSP ID, which is 4 bits long.
Therefore, an IS-IS process can generate a maximum of 256 LSP fragments, and the amount of information it carries is limited. By adding additional system IDs, the IS-IS process can generate more LSP fragments.

A) False
B) True

4. On a broadcast network, routers (including non-DIS routers) of the same level on a network segment can establish neighbor relationships. In the implementation of BFD for IS-IS, however, BFD sessions are established only between a DIS and non-DIS routers, not between non-DIS routers.

A) FALSE
B) TRUE

5. In the network shown in the figure, the DHCP Server function is enabled on the R2 GE0/0/0 interface, and the address pool is the interface address pool. The R1 GE0/0/0 and GE0/0/1 interfaces are used as DHCP clients. By default, only one interface can obtain an IP address.