What should a test-taker do if they encounter a question they are unsure of?

Marking the question and planning to return to it later if time permits is an effective strategy for tackling uncertainty during an exam. This approach allows the test-taker to conserve time and mental energy for questions they are more confident about while ensuring that they do not lose the opportunity to answer the uncertain question entirely.

By returning to the marked question after addressing others, the test-taker can approach it with a fresh perspective, which may help in reassessing the question or recalling relevant information. Additionally, this strategy minimizes the risk of making a hasty, uninformed decision on a question that could potentially have significant implications for their overall score. It also allows the individual to manage their time more efficiently by focusing first on questions they know, thus maximizing their chances of performing well on the exam overall.

Other strategies, like writing down a tentative answer or guessing randomly, may lead to potential confusion and a waste of time or resources, while skipping without marking doesn't leave room for reconsideration. Marking it to revisit later provides flexibility and maximizes every opportunity to demonstrate knowledge.