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Huawei H12-821_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Large-scale WLAN Architecture6%- Enterprise WLAN deployment basics
IPv63%- IPv6 addressing and routing
Switching Technologies7%- VLAN and STP fundamentals
IS-IS8%- IS-IS protocol fundamentals
Network Service and Management2%- Network management basics
Routing Fundamentals3%- Network basics and routing principles
Network Security9%- ACL and basic security mechanisms
Network Solution2%- Integrated network design scenarios
BGP17%- BGP path selection
- BGP policy and attributes
OSPF16%- OSPF core concepts
- OSPF areas and LSDB
Network Reliability8%- Redundancy and failover mechanisms
Routing and Traffic Control10%- Traffic engineering basics
- Policy-based routing
Multicast9%- IGMP and PIM concepts

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q244-Q249):

NEW QUESTION # 244
The MAC address of a certain PC is 5489-98FB-65D8. The administrator wants this PC to obtain the specified IP address 192.168.1.11/24 from the DHCP server, so the command configured by the administrator should be?

Answer: D


NEW QUESTION # 245
About RP, which of the following statement is correct? (Multiple choice)

Answer: A,D


NEW QUESTION # 246
On an OSPF network, one router with P2P as the network type is directly connected to another router with P2MP as the network type. If the Hello intervals on the two routers are changed to be the same, neighbor relationship establishment and LSDB synchronization are not affected.

Answer: B

Explanation:
The scenario describes a mismatch in OSPF network types between two connected routers: one set to Point-to- Point (P2P) and the other set to Point-to-Multipoint (P2MP). While aligning Hello intervals may seem sufficient for establishing an OSPF neighbor relationship, the fundamental mismatch in network types introduces issues.
OSPF Network Types
P2P: Assumes a direct connection with a single neighbor, uses faster convergence and simpler LSDB synchronization.
P2MP: Supports multiple neighbors on a single interface, requiring different handling for DR/BDR roles and LSDB updates.
Impact of Network Type Mismatch
If Hello intervals are aligned, adjacency establishment might occur. However, mismatched network types affect neighbor role assignment and LSDB synchronization.
P2P expects a direct link and would handle updates differently than P2MP, which assumes multiple neighbors. This leads to inconsistencies in route calculation and forwarding.
HCIP-Datacom-Core Reference
OSPF Basics and Configurationclearly outlines the criticality of consistent network type configuration for stable OSPF operation.
Lab examples in the HCIP Datacom Lab Guidefurther demonstrate the consequences of such mismatches, including unstable neighbor states and incomplete LSDB synchronization.
Hence, the statement that neighbor relationships and LSDB synchronization remain unaffected is incorrect.
Proper OSPF operation requires matching network types in addition to aligned Hello intervals.


NEW QUESTION # 247
IPv6 address 2001:FC1A:8BAD:0112:0000:1200:0000:0001/64 is abbreviated to 2001:FC1A:8BAD:112:0:1200::1/64

Answer: A


NEW QUESTION # 248
In addition to a route reflector, the confederation is another method that reduces the number of IBGP connections in an AS.
Which of the following statements are true about the confederation technology? (Choose all that apply)

Answer: A,B,D

Explanation:
A is correct- Confederations arespecifically designed for large-scale BGP deploymentswhere a full IBGP mesh is impractical.
B is correct- Sub-ASs within a confederation establishEBGP-like connectionsbetween each other but behave like IBGP within the overall AS. These sub-ASsdo not require full-mesh inside the confederation, but EBGP rules are followed between sub-ASs.
C is false-Not all devices need to be reconfigured. Devices within the same sub-AS retain normal IBGP behavior and minimal changes.
D is correct- Confederation istransparent to external peers, so thelogical topology remains the samefrom outside the AS.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"BGP confederation divides an AS into multiple sub-ASs. EBGP-like sessions are established between sub- ASs, while reducing IBGP mesh complexity. The external AS still sees the AS as one unit." (Chapter: BGP Scalability Enhancements - Section: Confederation)


NEW QUESTION # 249
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