The document discusses replay questions, which are questions that ask the learner to focus on a short part of a conversation or lecture and can inquire about the main idea, supporting facts, speaker's attitude or purpose, or inferences. Replay questions are not one of the six core listening skills but test comprehension of those skills by having the learner re-listen to a selected part of the audio. These questions are indicated by a headphone icon so learners know to re-listen to the audio segment before answering.