Which of the following Ruby code snippets correctly demonstrates the use of ensure to guarantee execution of cleanup code?

easy📝 Syntax Q3 of 15

Ruby - Error Handling

Which of the following Ruby code snippets correctly demonstrates the use of ensure to guarantee execution of cleanup code?

<pre>begin
  puts "Process"
rescue
  puts "Error"
end
ensure
  puts "Cleanup"</pre>

<pre>begin
  puts "Process"
ensure
  puts "Always runs"
end</pre>

<pre>begin
  puts "Process"
rescue
  puts "Error"
ensure
  puts "Cleanup"</pre>

<pre>begin
  puts "Process"
rescue
  puts "Error"
finally
  puts "Cleanup"</pre>

Step-by-Step Solution

Solution:

Step 1: Understand ensure placement
The ensure block must be inside the begin...end block to guarantee execution.

begin
  puts "Process"
ensure
  puts "Always runs"
end

correctly places ensure inside begin...end.

begin
  puts "Process"
rescue
  puts "Error"
end
ensure
  puts "Cleanup"

places ensure outside the block, which is invalid syntax.

begin
  puts "Process"
rescue
  puts "Error"
ensure
  puts "Cleanup"

is missing the closing end.

begin
  puts "Process"
rescue
  puts "Error"
finally
  puts "Cleanup"

uses finally, which is not valid Ruby syntax.

Final Answer:
It runs code regardless of whether an exception occurred or not -> Option B
Quick Check:
Ensure block must be inside begin-end [OK]

Quick Trick: Ensure must be inside begin-end block [OK]

Common Mistakes:

Master "Error Handling" in Ruby

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Ruby Quizzes