gRPC Protocol JN0-423 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A development team is building a microservices-based application where services need to communicate with each other. They need a communication framework that supports strong typing, automatic code generation, and high performance for internal service-to-service calls. They are considering gRPC. What is a key feature of gRPC that makes it suitable for this internal communication?

   • AIt is a synchronous-only framework, which simplifies the programming model.
   • BIt uses Protocol Buffers to define service contracts and generate client and server code.
   • CIt uses a human-readable text format for all messages, simplifying debugging.
   • DIt relies on HTTP/1.1, which is universally supported by all network devices.
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2. 7foundation · easy

   Which statement accurately compares gRPC and REST?

   • AgRPC is human-readable, while REST is binary
   • BgRPC is only used for internal services, while REST is only used for public APIs
   • CgRPC is slower than REST due to HTTP/2 overhead
   • DgRPC uses binary serialization and HTTP/2, while REST commonly uses JSON and HTTP/1.1
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4. 8foundation · easy

   Which gRPC communication pattern is best suited for a client that needs to receive a continuous stream of updates from a server, such as real-time telemetry data?

   • ABidirectional streaming RPC
   • BClient-streaming RPC
   • CServer-streaming RPC
   • DUnary RPC
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5. 9application · medium

   A company is designing a public-facing API for a simple web service that will be consumed by external developers. The API needs to be easy to use, well-documented, and accessible from any language. The team is debating between gRPC and REST. What is a primary reason to choose REST over gRPC for this public API?

   • AREST is strongly typed and requires code generation for all clients.
   • BREST uses JSON, which is human-readable and has broad support in browsers and tools.
   • CREST is faster because it uses HTTP/2 by default.
   • DREST supports streaming natively, which is essential for real-time updates.
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6. 10foundation · easy

   What is the primary purpose of Protocol Buffers in a gRPC service definition?

   • ATo handle authentication and authorization for gRPC calls
   • BTo manage the lifecycle of gRPC channels and connections
   • CTo define the service methods and message structures in a language-neutral way
   • DTo provide a human-readable format for debugging network traffic
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