Rust MCQs with answers Page - 1

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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Q. What is Rust primarily designed for?

  • (A) Web development
  • (B) Data analysis
  • (C) System programming
  • (D) Mobile development

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Q. Which keyword is used to define a constant in Rust?

  • (A) const
  • (B) define
  • (C) let
  • (D) static

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Q. What is ownership in Rust?

  • (A) A way to declare variables
  • (B) A memory management system
  • (C) A syntax rule
  • (D) A debugging tool

A

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Q. Which macro is used to print to the console in Rust?

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

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Q. Which of the following is the correct way to declare a mutable variable in Rust?

  • (A) let mut x = 5;
  • (B) mut x = 5;
  • (C) var x = 5;
  • (D) x := 5;

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Q. What does the `unwrap()` method do in Rust?

  • (A) Deletes the value
  • (B) Wraps the value in an Option
  • (C) Extracts the value or panics if None
  • (D) Replaces the value

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Q. Which trait is used to enable formatting with {}?

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

A

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Q. Which of the following is NOT a Rust primitive type?

  • (A) u32
  • (B) i64
  • (C) char
  • (D) byte

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Q. What does the `match` keyword do in Rust?

  • (A) It checks string equality
  • (B) It is used for pattern matching
  • (C) It creates loops
  • (D) It assigns values

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Q. How does Rust ensure thread safety?

  • (A) Using garbage collection
  • (B) Using mutexes only
  • (C) Through ownership and borrowing rules
  • (D) Manual memory management

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