CompTIACompTIA
220-1101 · Question #269
220-1101 Question #269: Real Exam Question with Answer & Explanation
The correct answer is C: CMOS battery failing. The date and time settings on a PC are maintained by the CMOS battery on the motherboard, so a persistent error indicating incorrect date and time points to a failing or dead CMOS battery.
Hardware and network troubleshooting
Question
When a PC is turned on, an error indicates that the date and time are wrong. Which of the following is the most likely cause?
Options
- AOverheating RAM DIMMs
- BHDD crash
- CCMOS battery failing
- DCapacitor swelling
Explanation
The date and time settings on a PC are maintained by the CMOS battery on the motherboard, so a persistent error indicating incorrect date and time points to a failing or dead CMOS battery.
Common mistakes.
- A. Overheating RAM DIMMs would cause system instability, crashes, or boot failures, not specifically incorrect date and time settings.
- B. An HDD crash would prevent the operating system from loading or cause data loss, but it wouldn't directly affect the system's date and time stored in the BIOS.
- D. Swelling capacitors on the motherboard indicate a power delivery problem and can cause various system instabilities or failures, but are not the primary cause for only the date and time resetting.
Concept tested. CMOS battery function
Topics
#CMOS battery#BIOS settings#Troubleshooting#Real-time clock
Community Discussion
No community discussion yet for this question.