Hardware Diagnostics — CompTIA A+ Core 1 (220-1101) Practice Questions
Hardware diagnostics refers to the systematic process of identifying and isolating failures in physical components such as CPUs, RAM, storage drives, and expansion cards. On the CompTIA A+ Core 1 exam, candidates must know how to use built-in tools like POST, BIOS/UEFI self-tests, and third-party utilities to pinpoint faults. Understanding diagnostic techniques is essential because hardware failures often produce ambiguous symptoms that require methodical testing to distinguish one component from another. The exam tests practical scenarios where a technician must determine whether a symptom points to a faulty RAM stick, a failing drive, or an overheating processor.
Free questions on hardware diagnostics
What is the purpose of a POST (Power-On Self-Test)?
Free question · easy · full answer + explanation
More hardware diagnostics questions in the full bank
- Which of the following is a function of the POST (Power-On Self-Test)? Unlock answer & explanation →
- A technician is troubleshooting a computer that will not boot. POST codes on the motherboard indicate a memory issue. What should be the first action? Unlock answer & explanation →
- A user reports that their display shows no image. Which troubleshooting step should be performed FIRST? Unlock answer & explanation →