Rust MCQs with answers Page - 5

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. Which trait is required to print a struct using {:?}?

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

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Q. What is the purpose of lifetimes in Rust?

  • (A) To manage variable names
  • (B) To determine scope of ownership
  • (C) To manage function calls
  • (D) To import external crates

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Q. Which of the following types can be used for error handling?

  • (A) Result
  • (B) Option
  • (C) Error
  • (D) Both Result and Option

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Q. What does the `Copy` trait allow?

  • (A) Cloning heap data
  • (B) Moving values
  • (C) Bitwise copying for simple types
  • (D) Copying structs only

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Q. Which keyword is used to include external crates in Rust?

  • (A) include
  • (B) use
  • (C) extern crate
  • (D) import

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Q. What is the purpose of the `use` keyword?

  • (A) Create modules
  • (B) Import paths into scope
  • (C) Define traits
  • (D) Compile code

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Q. Which keyword allows matching on multiple patterns?

  • (A) match
  • (B) if let
  • (C) or
  • (D) |

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Q. What does the `static` keyword define?

  • (A) A mutable variable
  • (B) A runtime constant
  • (C) A globally available constant
  • (D) A lifetime annotation

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Q. What is the main advantage of Rust over C++?

  • (A) Faster compilation
  • (B) Memory safety without garbage collection
  • (C) Simpler syntax
  • (D) More libraries

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Q. Which is the correct syntax for an infinite loop in Rust?

  • (A) while(true) {}
  • (B) loop {}
  • (C) for(;;) {}
  • (D) repeat {}

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