Huawei H12-891_V1.0 Exam With Confidence Using Practice Dumps

IS-IS Multi-Process:

Huawei devices support runningmultiple IS-IS processes simultaneously.

These processes arecompletely independentof one another: different LSDBs, interfaces, routing tables, etc.

Each process can be associated with aseparate VPN instance, and asingle VPN instance can be served by multiple IS-IS processes.

IS-IS Multi-Instance:

One IS-IS process canrun multiple instances, typically used formulti-VPN scenarios.

However, Huawei's current implementation prefersone VPN per processfor clarity and control.

Based on Huawei’s design:

Ais incorrect — an IS-IS processcanserve multiple VPNs in other vendors, but Huawei typically uses one process per VPN for clean separation.

Bis correct — a VPN instance can be associated withmultiple IS-IS processes.

Cis incorrect in Huawei implementation context.

Dis correct —IS-IS processes are independent.

Correct answers: B, D

Huawei’sOPS (Open Programmability System)enables programmable interactions with devices through Python-based templates. In Huawei's OPS Python environment:

The classOPSConnectionis used to manage device interactions.

It includes methods like:

get()

post(self, uri, req_data)→ used tocreate resources

put(),delete(), etc.

This aligns with RESTful API semantics, and the post() method in the context given is used correctly.

Correct answer: A. TRUE

OSPFv3 (used for IPv6) usesIPv6 multicast addressesfor communication between routers:

FF02::5— All OSPF routers.

FF02::6— All OSPF Designated Routers (DRs) and Backup Designated Routers (BDRs).

FF08::x— These are used for organization-local scope, which isnotapplicable to standard OSPFv3 operation.

Therefore:

C. All OSPF routers use FF02::5— Correct

D. The DR uses FF02::6— Correct

A and B (FF08::x)— Incorrect. These addresses are not used by OSPFv3 in this context.

Correct answers: C and D