Fast API MCQs with answers Page - 12

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Q. Which decorator is used to create a POST endpoint in FastAPI?

  • (A) @app.route('POST')
  • (B) @app.submit()
  • (C) @app.post()
  • (D) @post.route()

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Q. Which command runs a FastAPI app using Uvicorn?

  • (A) python app.py
  • (B) fastapi run app
  • (C) uvicorn main:app
  • (D) runserver app

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Q. Which built-in FastAPI response class is used to return HTML?

  • (A) TextResponse
  • (B) HtmlResponse
  • (C) HTMLResponse
  • (D) ResponseHTML

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Q. Which FastAPI function allows you to include routers from other modules?

  • (A) app.route_add()
  • (B) app.router()
  • (C) app.include_router()
  • (D) app.attach_router()

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Q. What happens if a required query parameter is missing in a FastAPI request?

  • (A) The default value is used
  • (B) A 404 error is returned
  • (C) FastAPI raises a validation error
  • (D) The route is ignored

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Q. Which middleware class enables session handling in FastAPI?

  • (A) SessionMiddleware
  • (B) SessionManager
  • (C) AuthSession
  • (D) SessionHandler

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Q. How are headers validated in FastAPI?

  • (A) Using Header()
  • (B) Using Query()
  • (C) Using Validate()
  • (D) Using Request.headers

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Ravina • 3.96K Points
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Q. Which argument in Field() is used to add a short description to a model field?

  • (A) desc
  • (B) label
  • (C) description
  • (D) info

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Q. How do you enable HTTPS in Uvicorn for FastAPI?

  • (A) --secure
  • (B) --https
  • (C) --ssl-keyfile and --ssl-certfile
  • (D) --ssl-mode

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Q. Which statement is true about FastAPI’s data validation?

  • (A) It requires manual validation
  • (B) It only supports integers
  • (C) It uses Pydantic to validate data types and constraints
  • (D) It requires JSON schema files

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