What programming construct repeats execution while a given condition remains true?

• A. Xml
• B. Unit Testing
• C. While Loop
• D. Trigger

Answer: (C)

This item tests understanding of a control structure that repeats a block of code as long as a condition stays true. The best choice is the while loop. In a while loop, the condition is checked before each iteration; if it evaluates to true, the loop body runs, and the condition is checked again. This continues until the condition becomes false. If the condition is false right away, the loop may not run at all. For example, while (stillHasWork) { processNextItem(); stillHasWork = checkIfMore(); } This pattern is what lets you keep doing something only while a criterion holds.

XML is a data format for structuring information, not a programming control flow construct. Unit testing is a methodology for verifying code works as intended, not a way to repeat code execution based on a condition. A trigger is an action that runs in response to events (often in a database), not a general-purpose loop for repeating code.