Exam-style question
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What is the main purpose of a stack frame when a subroutine is called?.
- A.To store information needed to pause and later resume the calling subroutine
- B.To permanently store every value used by the whole program
- C.To translate the subroutine into machine code
- D.To determine which programming language the subroutine uses
Model answer
What a good answer should say
- To store information needed to pause and later resume the calling subroutine
Explanation
Why this works
A stack frame stores details for one active subroutine call, including the return address, parameters and local variables. This allows the subroutine to execute and then return correctly.
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