Rust MCQs with answers Page - 23

Here, you will find a collection of MCQ questions on Rust. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the purpose of match guards in Rust?

  • (A) To skip match arms
  • (B) To create loops
  • (C) To add extra conditions in match arms
  • (D) To define constants

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which function is used to convert a String to lowercase?

  • (A) to_lower()
  • (B) lowercase()
  • (C) to_lowercase()
  • (D) as_lowercase()

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Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the behavior of a move in Rust?

  • (A) Creates a copy
  • (B) Shares ownership
  • (C) Transfers ownership
  • (D) Modifies the original value

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which keyword is used to define a public item?

  • (A) export
  • (B) pub
  • (C) open
  • (D) global

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which macro is used to assert test conditions?

  • (A) check!
  • (B) match!
  • (C) assert!
  • (D) test!

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which keyword allows unsafe operations in Rust?

  • (A) unsafe
  • (B) danger
  • (C) raw
  • (D) expose

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which macro is used to print values to the console?

  • (A) printline!
  • (B) echo!
  • (C) write!
  • (D) println!

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Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the default return type of a Rust function without a return statement?

  • (A) None
  • (B) ()
  • (C) 0
  • (D) void

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which data type is used to store Unicode characters?

  • (A) char
  • (B) u8
  • (C) String
  • (D) byte

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Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the purpose of the derive attribute?

  • (A) Creates traits automatically
  • (B) Generates boilerplate code for traits
  • (C) Includes modules
  • (D) Creates macros

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