What type of questions are most effective for diagnosing a customer's issue?

• A. Open-ended questions that encourage detailed description.
• B. Yes/No questions that can be answered with a single word.
• C. Leading questions that suggest a specific answer.
• D. Closed questions that limit responses.

Answer: (A)

Open-ended questions invite customers to describe their issue in their own words, which is essential for accurately diagnosing what’s going wrong. By encouraging detailed descriptions of what happened, when it started, what steps the customer took, what they observed, and how it impacts their work, you gather a fuller, nuanced picture. This depth helps you spot clues, understand the context, and identify underlying causes rather than just a surface symptom. It also makes it easier to guide next steps and verify your understanding through thoughtful follow-up questions.

In contrast, yes/No questions provide only a single word or brief reply, which often misses important details and edge cases. Leading questions steer the customer toward a particular answer, potentially biasing the information you collect and obscuring the real issue. Closed questions constrain responses and can prevent you from uncovering necessary context for effective troubleshooting.