220-1101 Exam Dumps : CompTIA A+ Certification Exam: Core 1

A discharged CMOS battery often causes a system to lose track of time and date settings when powered off, as this battery powers the real-time clock. The BIOS settings, including time and date, revert when this battery fails. Option A (time server misconfiguration) would impact multiple devices. BIOS updates (Option B) and CPU performance (Option D) are unrelated to timekeeping issues, as outlined in CompTIA A+ Core 1 (220-1101) exam objectives under hardware troubleshooting.

A sandbox is a lab environment in which virtual machines can be created, rebooted, and shut down without affecting the production network. This allows for testing and experimentation without the risk of damaging the production environment123..

Before attempting to resolve the issue, it is important to first determine the cause or probable cause of the issue, so that a plan of action can be developed. In this case, the fact that the retention policy was updated shortly before users first noticed the issue suggests that this could be the cause of the issue. The systems administrator should investigate this further to determine if this is indeed the cause of the email server issue.