Fast API MCQs with answers Page - 6

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Ravina • 3.59K Points
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Q. Which keyword is used in FastAPI to define optional parameters?

  • (A) Maybe
  • (B) Optional
  • (C) Nullable
  • (D) Option

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Ravina • 3.59K Points
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Q. What is the correct way to make a parameter optional with a default value in FastAPI?

  • (A) def read_item(id: int = None)
  • (B) def read_item(id: Optional[int] = None)
  • (C) def read_item(Optional id: int)
  • (D) def read_item(id?: int)

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Ravina • 3.59K Points
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Q. How can FastAPI validate the length of a query parameter?

  • (A) Using Query(min_length=3)
  • (B) Using Length(min=3)
  • (C) Using len()
  • (D) Using Validator()

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Ravina • 3.59K Points
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Q. Which FastAPI feature is used to restrict input values to certain choices?

  • (A) Choice()
  • (B) Enum
  • (C) Validator
  • (D) Limiter

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Ravina • 3.59K Points
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Q. How do you define a sub-application in FastAPI?

  • (A) Using FastAPI.mount()
  • (B) Using app.include_sub()
  • (C) Using add_subapp()
  • (D) Using route_tree()

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Ravina • 3.59K Points
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Q. What will `from fastapi import Depends` do?

  • (A) Start the application
  • (B) Allow using templates
  • (C) Enable dependency injection
  • (D) Include static files

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Ravina • 3.59K Points
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Q. How do you set a custom response header in FastAPI?

  • (A) By editing request.headers
  • (B) Using response.headers['key'] = 'value'
  • (C) Using HeaderResponse
  • (D) Using Header.set()

R

Ravina • 3.59K Points
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Q. Which decorator should you use to create a GET route in FastAPI?

  • (A) @get
  • (B) @app.route(method='GET')
  • (C) @app.get()
  • (D) @app.GET()

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Ravina • 3.59K Points
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Q. In FastAPI, how can you handle file uploads?

  • (A) Using Upload()
  • (B) Using File()
  • (C) Using FormFile()
  • (D) Using Data()

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Ravina • 3.59K Points
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Q. What type does FastAPI expect uploaded files to be?

  • (A) str
  • (B) int
  • (C) UploadFile
  • (D) FileStream

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