Rust MCQs with answers Page - 27

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. Which loop construct in Rust always executes at least once?

  • (A) for
  • (B) while
  • (C) loop
  • (D) do-while

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which trait allows a type to be used with the `+` operator?

  • (A) PartialEq
  • (B) Ord
  • (C) Add
  • (D) Copy

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which macro is used to write to the standard error stream?

  • (A) println!
  • (B) eprint!
  • (C) debug!
  • (D) log!

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which keyword allows code that can break Rust’s safety guarantees?

  • (A) unsafe
  • (B) unchecked
  • (C) danger
  • (D) manual

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which method on an iterator returns true if all elements satisfy a predicate?

  • (A) any()
  • (B) none()
  • (C) filter()
  • (D) all()

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which function reads user input from the console?

  • (A) stdin().read_line()
  • (B) input()
  • (C) console.read()
  • (D) scan()

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Shyam Dubey • 3.70K Points
Extraordinary

Q. What does the drop() function do?

  • (A) Deletes a file
  • (B) Destroys a thread
  • (C) Explicitly destroys a value early
  • (D) Removes an element from a vector

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which method on a String adds a character to the end?

  • (A) add_char()
  • (B) insert()
  • (C) push()
  • (D) append()

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which method reverses a vector in place?

  • (A) rev()
  • (B) reverse()
  • (C) flip()
  • (D) invert()

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which of these types implements Copy by default?

  • (A) String
  • (B) Vec<i32>
  • (C) i32
  • (D) Box<i32>

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