Which of the following is a common mistake candidates should avoid during the exam?

Overthinking and second-guessing answers is a common mistake candidates should avoid during the exam because it can lead to increased anxiety and confusion, detracting from overall performance. When candidates second-guess their initial responses, they often end up changing correct answers to incorrect ones, driven by doubt rather than a clear recollection of knowledge. Confidence in their first instinct, founded on careful preparation and understanding of the material, is crucial in maintaining accuracy in a timed setting.

In contrast, scanning questions beforehand allows candidates to get a feel for the exam’s structure, pacing themselves helps in managing time effectively, and utilizing the allotted time efficiently enables them to complete all questions without rushing. Each of these strategies contributes positively to a candidate's performance, whereas overthinking can disrupt mental clarity and decision-making during the exam.