Ruby MCQs with answers Page - 7

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📊 Ruby
Q. Which of the following is not a type of loop in ruby?
  • (A) For Loop
  • (B) Foreach Loop
  • (C) Until Loop
  • (D) While Loop
💬 Discuss
✅ Correct Answer: (B) Foreach Loop

Explanation: Foreach loop is not there in ruby.

📊 Ruby
Q. What is true about Until loop?
  • (A) Executes code while conditional is true
  • (B) In until loop increment is not required
  • (C) Executes code while conditional is false
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (C) Executes code while conditional is false

Explanation: Executes code while conditional is false. An until statement`s conditional is separated from code by the reserved word do, a newline, or a semicolon.

📊 Ruby
Q. What is true about while loop?
  • (A) Executes code while conditional is true
  • (B) In while loop increment is not required
  • (C) Executes code while conditional is false
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (A) Executes code while conditional is true

Explanation: Executes code while conditional is true. A while loop`s conditional is separated from code by the reserved word do, a newline, backslash , or a semicolon.

📊 Ruby
Q. What is the use of break statement?
  • (A) Terminates the most External loop.
  • (B) Terminates all loop.
  • (C) Terminates the program.
  • (D) Terminates the most internal loop.
💬 Discuss
✅ Correct Answer: (D) Terminates the most internal loop.

Explanation: Terminates the most internal loop. Terminates a method with an associated block if called within the block (with the method returning nil).

📊 Ruby
Q. Which statement is used to Jumps to the next iteration of the most internal loop?
  • (A) break
  • (B) next
  • (C) redo
  • (D) retry
💬 Discuss
✅ Correct Answer: (B) next

Explanation: Next : Jumps to the next iteration of the most internal loop. Terminates execution of a block if called within a block

📊 Ruby
Q. Which statement is used to Restarts this iteration of the most internal loop, without checking loop condition?
  • (A) break
  • (B) next
  • (C) redo
  • (D) retry
💬 Discuss
✅ Correct Answer: (C) redo

Explanation: Redo : Restarts this iteration of the most internal loop, without checking loop condition. Restarts yield or call if called within a block.

📊 Ruby
Q. Which statement is used to restarts the invocation of the iterator call?
  • (A) break
  • (B) next
  • (C) redo
  • (D) retry
💬 Discuss
✅ Correct Answer: (D) retry

Explanation: If retry appears in the iterator, the block, or the body of the for expression, restarts the invocation of the iterator call. Arguments to the iterator is re-evaluated.

📊 Ruby
Q. What does the 1..5 indicate?
  • (A) Exclusive range
  • (B) Both inclusive and exclusive range
  • (C) Inclusive range
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (C) Inclusive range

Explanation: 1..5 means start from one and go till 4 and even include 5.

📊 Ruby
Q. What does end represent?
  • (A) keyword represents the ending of loop
  • (B) keyword represents the start of loop
  • (C) keyword represents the start and ending of loop
  • (D) keyword represents the infinite loop
💬 Discuss
✅ Correct Answer: (A) keyword represents the ending of loop

Explanation: end: This keyword represents the ending of 'for' loop block which started from 'do' keyword.

📊 Ruby
Q. Which of the following is Exit Controlled loop?
  • (A) do..while
  • (B) For
  • (C) Until
  • (D) While
💬 Discuss
✅ Correct Answer: (A) do..while

Explanation: do..while is Exit-Controlled loop because it tests the condition which presents at the end of the loop body.

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