CompTIA
220-801 · Question #18
220-801 Question #18: Real Exam Question with Answer & Explanation
The correct answer is B: Touch the case to discharge static.. Before reaching inside a computer case, the very first action is to touch the case to discharge any built-up static electricity from your body, preventing ESD damage to components.
Question
Which of the following is the FIRST thing a technician should do before putting their hand inside a computer case?
Options
- AAcquire the appropriate tools that are going to be used.
- BTouch the case to discharge static.
- CRemove loose jewelry.
- DRefer to manufacturer documentation.
Explanation
Before reaching inside a computer case, the very first action is to touch the case to discharge any built-up static electricity from your body, preventing ESD damage to components.
Common mistakes.
- A. Acquiring the appropriate tools is a preparation step that should happen before approaching the computer, but it does not address the immediate ESD risk of placing a hand inside the case.
- C. Removing loose jewelry is a physical safety measure to prevent scratching components or shorting contacts, but it does not discharge static and should occur before touching the case.
- D. Referring to manufacturer documentation is good practice for complex repairs but is not the immediate safety action required before touching internal components.
Concept tested. ESD discharge procedure before handling components
Reference. https://www.esd.org/resources/esd-basics
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