ユーザーのデスクトップ PC が数時間ごとに突然シャットダウンします。技術者は、壁のコンセントに接続されている PC の背面から焦げる臭いを感じました。問題を特定するために技術者が最初に行うべきことは次のうちどれですか?
正解:A
If a desktop PC shuts down suddenly and there is a burning smell coming from the area where it is connected to the wall socket, the first step should be to check that the power cable is not damaged. A damaged power cable can cause electrical shorts or overheating, leading to sudden shutdowns and a burning smell. Inspecting the power cable for fraying, cuts, or other damage can help identify if it is the source of the problem. Reference: CompTIA A+ Core 1 (220-1101) Exam Objectives, specifically the sections on troubleshooting hardware components and power-related issues, which would include assessing external factors such as the condition of power cables. Basic electrical safety and troubleshooting principles, emphasizing the importance of checking power connections and cables when faced with symptoms of electrical issues.