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MCQs on Difference between while and do while

by Yogi P - February 12, 2025

MCQs on Difference between while and do while

Q 1: Which type of loop checks the condition before executing the loop body?

  • A while loop
  • B do-while loop
  • C Both loops
  • D Neither loop

Answer: (A) while loop

Q 2: How many times will the loop body execute in a do-while loop, regardless of the condition?

  • A Zero times
  • B Exactly once
  • C At least once
  • D Multiple times

Answer: (C) At least once

Q 3: In which scenario is a while loop more efficient than a do-while loop?

  • A When the loop must execute at least once
  • B When displaying a menu in a console application
  • C When the condition is rarely true
  • D When iterating through a collection with an unknown number of elements

Answer: (D) When iterating through a collection with an unknown number of elements

Q 4: What is the control type of a do-while loop?

  • A Entry-controlled
  • B Exit-controlled
  • C Both Entry and Exit-controlled
  • D Neither Entry nor Exit-controlled

Answer: (B) Exit-controlled

Q 5: Which loop is best used when you need to repeat a block of code until a user decides to exit?

  • A while loop
  • B do-while loop
  • C Both loops are equally suitable
  • D Neither loop is suitable

Answer: (B) do-while loop

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Which type of loop checks the condition before executing the loop body?

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