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  1. Home
  2. Huawei Certification
  3. H12-891_V1.0 Exam
  4. Huawei.H12-891_V1.0.v2025-06-03.q273 Dumps
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Question 166

gRPC (Google Remote Procedure Call)is a language-neutral, platform-neutral, and open-source remote RPC system that supportsunary RPCs and streaming RPCs.
Which of the following service methodsare NOT supportedby gRPC?

Correct Answer: B,C
Comprehensive and Detailed Explanation:
#gRPC supports four types of RPCs:
Unary RPC# Client sendsonerequest, server respondsonce.
Server streaming RPC# Server sendsmultiple responses.
Client streaming RPC# Client sendsmultiple requests.
Bidirectional streaming RPC#Bothsides exchange multiple messages.
#Why B and C Are Incorrect:
#(B) Incorrect# The method rpc dataPublish(stream serviceArgs) returns(stream serviceArgs) {} violates gRPC syntax.
#(C) Incorrect# rpc stream LotsOfGreetings(HelloRequest) returns (HelloResponse) {} containsincorrect stream positioning.
#Reference:Huawei HCIE Datacom - gRPC API and Streaming Mechanisms
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Question 167

What is the field that the IPv6 header has similar to the IPv4 header "Type of Service" field?

Correct Answer: C
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Question 168

What check frames can IPSG set?

Correct Answer: B,C,D
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Question 169

The following statement about the OSPFv3 message format is correct?( Multiple select).

Correct Answer: A,C,D
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Question 170

Which of the following descriptions of MPLS header TTL are correct?

Correct Answer: B,D
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