Rust MCQs with answers Page - 29

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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R

Ravina • 3.96K Points
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Q. Which trait must be implemented to allow a type to be formatted using {:?}?

  • (A) Display
  • (B) ToString
  • (C) Debug
  • (D) Printable

R

Ravina • 3.96K Points
Extraordinary

Q. What is the main benefit of zero-cost abstractions in Rust?

  • (A) Faster compilation
  • (B) Smaller binaries
  • (C) Abstractions that compile to optimal machine code
  • (D) Automatic memory management

R

Ravina • 3.96K Points
Extraordinary

Q. Which keyword is used to match multiple patterns?

  • (A) or
  • (B) if
  • (C) |
  • (D) &

R

Ravina • 3.96K Points
Extraordinary

Q. Which method consumes a String and returns a vector of words?

  • (A) split_words()
  • (B) words()
  • (C) split_whitespace().collect()
  • (D) tokenize()

R

Ravina • 3.96K Points
Extraordinary

Q. Which type is used for file handling errors in Rust?

  • (A) Result<T, String>
  • (B) Option<T>
  • (C) Result<T, io::Error>
  • (D) Result<T, bool>

R

Ravina • 3.96K Points
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Q. Which macro is used to format strings without printing?

  • (A) format!
  • (B) print!
  • (C) write!
  • (D) concat!

R

Ravina • 3.96K Points
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Q. Which method is used to resize a vector?

  • (A) resize()
  • (B) adjust_size()
  • (C) extend()
  • (D) reallocate()

R

Ravina • 3.96K Points
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Q. Which operator is used for dereferencing a reference?

  • (A) &
  • (B) ->
  • (C) *
  • (D) ::

R

Ravina • 3.96K Points
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Q. Which trait is used for cloning data?

  • (A) Copy
  • (B) Clone
  • (C) ToOwned
  • (D) Owned

R

Ravina • 3.96K Points
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Q. Which keyword allows you to access fields from a parent struct?

  • (A) parent
  • (B) base
  • (C) super
  • (D) self

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