Recursion (1 Mark Questions)

1. Which of the following defined the recursion most correctly:
• A function that calls itself
• A function execution instance that calls another execution instance of the same function
• A class method that calls another class method
• An in-built method that is automatically called
2. Recursion is similar to which of the following?
• switch-case
• loop
• if-else
• None of these
3. What are the two cases that all the recursive functions should have? Write the name of both.
4. What is the base case for a recursive function?
5. When does infinite recursion occur?