Advanced Placement (AP) Computer Science

Disable ads (and more) with a membership for a one time $2.99 payment

Enhance your readiness for the AP Computer Science exam with insightful quizzes. Deepen your understanding and master key concepts as you prepare for a successful test experience!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which coding structure would be best to repeat an action multiple times?

Selection
Sequencing
Iteration
Recursion

The correct answer is: Iteration

The best choice for repeating an action multiple times is iteration. Iteration is a coding structure that allows a block of code to be executed repeatedly based on a specified condition or for a predetermined number of times. This is typically achieved through loops such as 'for', 'while', or 'do-while' statements, which enable a program to efficiently execute a set of instructions multiple times without needing to duplicate code. In contrast, selection structures are used for decision-making, allowing the flow of control to branch based on conditions but do not inherently repeat actions. Sequencing refers to executing statements in a linear manner, one after the other, which also doesn’t facilitate repetition. Recursion involves a function calling itself to solve a problem, which can be effective for certain types of tasks but is fundamentally different from the straightforward repetition that iteration offers. Thus, iteration is clearly the most suitable structure for the purpose of repeating actions.