8. Compare Common API Styles (REST, RPC, Synchronous, and Asynchronous) 200-901 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   How does REST differ from RPC in terms of design philosophy?

   • AREST uses a single endpoint for all operations, while RPC uses multiple endpoints
   • BREST focuses on resources and standard HTTP methods, while RPC focuses on actions and method calls
   • CREST focuses on actions, while RPC focuses on resources
   • DREST is always synchronous, while RPC is always asynchronous
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2. 7application · medium

   A developer is integrating with a legacy network device that only exposes an API where the client sends a method name and parameters, such as 'getInterfaceStatus' with 'interfaceName' as a parameter. The API uses JSON-RPC over HTTP. Which statement best describes this API style?

   • AIt is a synchronous API because it uses JSON-RPC.
   • BIt is an asynchronous API because it uses method calls.
   • CIt is an RPC API because it uses action-oriented method calls with parameters, typical of JSON-RPC.
   • DIt is a REST API because it uses HTTP and JSON.
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4. 8expert · medium

   A network admin is using a REST API to manage ACLs. The admin needs to update a specific rule within an ACL without affecting other rules. The API supports both PUT and PATCH. Which method should the admin use?

   • APUT to replace the entire ACL with the updated rule
   • BPOST to add the updated rule as a new rule
   • CPATCH to update only the specific rule
   • DGET to retrieve the ACL and then manually edit it
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5. 9application · medium

   A network device exposes an API that requires the client to send a request like '{"method": "backupConfig", "params": {"destination": "tftp://10.0.0.1"}}' over HTTP. The device processes the backup and returns a job ID immediately. The client must later check the job status using another method call. Which API style and interaction model does this describe?

   • ARPC API with asynchronous behavior, because it uses method calls and returns a job ID for later status checks.
   • BREST API with asynchronous behavior, because it uses JSON and returns a job ID.
   • CREST API with synchronous behavior, because it uses HTTP and returns a response.
   • DRPC API with synchronous behavior, because it returns a job ID immediately.
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6. 10foundation · easy

   What is the primary behavior of a synchronous API call?

   • AThe client continues executing other tasks while waiting for the response
   • BThe client blocks and waits for the server to process the request and return a response
   • CThe server sends the response to a callback URL without the client waiting
   • DThe client sends the request and immediately receives a response without any delay
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