Which term describes checks before repeating a loop?

• A. Iteration
• B. Post-condition loops
• C. Counting
• D. Pre-condition loops

Answer: (D)

Checks before each repetition are pre-condition checks. Before entering the next iteration, the loop tests a condition; if the condition is true, the next pass runs, and if false, the loop stops. This behavior is typical of pre-test loops, like the while loop, where the decision to continue is made at the start of each cycle. In contrast, post-condition loops test the condition after the body has run, so the body executes at least once. Iteration is the act of repeating the loop, and counting is just keeping track of how many repetitions have occurred.