H12-831_V1.0 Exam Dumps : HCIP-Datacom-Advanced Routing & Switching Technology V1.0

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

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???? Key Concept:

IS-IS is a Layer 2 routing protocol and does not rely on IP addressing to establish neighbor relationships. Unlike OSPF, IS-IS runs directly over the data link layer (CLNS - ISO 8473) and uses MAC-level communication for neighbor discovery.

???? IPv6 Addresses in the Scenario:

R1 Interface:

2000:12::1/64

2000:21::1/64

R2 Interface:

2000:12::2/127

2000:21::2/127

Even if IP prefixes on the interfaces are mismatched, IS-IS adjacency can still be formed, because:

IS-IS does not use IP address matching for adjacency formation.

What matters is that the interfaces are on the same Layer 2 segment and IS-IS is enabled on both sides.

✅ Final Answer: B. FALSE

Official Huawei Extract:

" IS-IS operates at Layer 2 and establishes neighbor relationships regardless of IP address configuration. As long as IS-IS is enabled and interfaces are connected at Layer 2, a neighbor relationship can be established—even with different IP prefixes. "

— [Huawei HCIA-Datacom Certification Guide – IS-IS over IPv6 Chapter]