Practice How Recursion Works (12.2) - Recursion - ICSE 11 Computer Applications

Practise this section

9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is a base case in a recursive function?
Show hintHide hint
Think about what prevents the function from calling itself repeatedly.
Question 2.
Provide an example of a simple recursive function.
Show hintHide hint
Consider factorial as an example of recursion.
3Question 3.
What does a base case in recursion do?
- Stops recursion
- Begins recursion
- Reverses recursion
Show hintHide hint
Remember, the base case is essential for stopping the function.
4Question 4.
True or False: The recursive case can operate without a base case.
- True
- False
Show hintHide hint
Think about the conditions required for termination.
Question 5.
Design a recursive algorithm to calculate the nth Fibonacci number.
Show hintHide hint
Think about how each Fibonacci number relates to the two preceding numbers.
Question 6.
Explain how to optimize a recursive function for factorial using memoization.
Show hintHide hint
Consider how memoization could save computation time.

5 more questions in this section. Enroll free to practise them all.