H12-891_V1.0 Exam Dumps : HCIE-Datacom V1.0

PQ (Priority Queuing) ensures low-latency services like voice and video are prioritized.

WFQ (Weighted Fair Queuing) fairly allocates remaining bandwidth to services like FTP.

Option B provides a balanced approach: guarantees for voice/video via PQ, and fairness for FTP via WFQ.

Exact Extract - Huawei HCIE-Datacom QoS Module:

“Voice and video traffic should be handled by PQ to minimize delay and jitter. Non-critical services such as FTP should be placed in WFQ queues to ensure bandwidth fairness.”

MP-BGP is an extension of BGP-4 that supports multi-protocol address families such as IPv6, VPNv4, etc. When PE and CE exchange BGP routes, there is no need to create a BGP process per VPN on the CE. The CE typically runs a standard BGP process, while the PE maintains separate VPN routing tables (VRFs).

Exact Extract - Huawei HCIE-Datacom MP-BGP Chapter:

“CE devices use standard BGP, and multiple VPNs can share the same BGP process on the CE. The PE handles VPN route separation through VRFs and MP-BGP.”

Intra-Area-Prefix-LSA (Type 9) is used in OSPFv3 to carry IPv6 prefix information for a router or network and is flooded within the area.

Link-LSA (Type 8) is only sent on the local link and is not flooded throughout the area.

Inter-Area-Prefix-LSA (Type 3) and Inter-Area-Router-LSA (Type 4) are also flooded within an area but originate from ABRs, typically for cross-area route advertisement.

That said, Intra-Area-Prefix-LSA is specifically flooded within an area, matching the context of the question directly.

Exact Extract - Huawei HCIE-Datacom OSPFv3 Module:

“Intra-Area-Prefix-LSAs are flooded within the area and advertise the IPv6 prefixes associated with router and network LSAs.”