Which statement guarantees that the loop will execute at least once?

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Prepare for the Tricentis Tosca Automation Specialist Level 1 (AS1) Test. Enhance your skills with multiple choice questions and explanations. Be exam ready!

Multiple Choice

Which statement guarantees that the loop will execute at least once?

Explanation:
The do loop guarantees at least one execution because it runs its body first, and only after completing the body does it check the condition to decide whether to continue. Since the condition is evaluated after the first run, the loop will execute at least once regardless of the initial condition. In contrast, a while loop checks the condition before running the body—if the condition is false at the start, the body never runs. A for loop also checks its stopping condition before the first iteration, so it can skip entirely if the initial condition isn’t met. An IF statement isn’t a loop at all; it runs its block only once when the condition is true. So the do loop is the one that guarantees at least one execution.

The do loop guarantees at least one execution because it runs its body first, and only after completing the body does it check the condition to decide whether to continue. Since the condition is evaluated after the first run, the loop will execute at least once regardless of the initial condition.

In contrast, a while loop checks the condition before running the body—if the condition is false at the start, the body never runs. A for loop also checks its stopping condition before the first iteration, so it can skip entirely if the initial condition isn’t met. An IF statement isn’t a loop at all; it runs its block only once when the condition is true.

So the do loop is the one that guarantees at least one execution.

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