Explanation
The systems administrator should clear the application cache12
If clearing the application cache does not work, the systems administrator should uninstall and reinstall the application12 Resetting the phone to factory settings is not necessary at this point12 Installing an alternative application with similar functionality is not necessary at this point12

Explanation
A full backup involves creating a copy of all data on the workstation, including system files and user-created data, and storing it on a set of tapes. This ensures that all data is backed up, and ensures that the data can be restored in the event of a system failure or data loss.

Explanation
WPA3 (Wi-Fi Protected Access 3) is a wireless security method that supports the majority of current Wi-Fi-capable devices without sacrificing security. It is backward compatible with WPA2 devices and offers enhanced encryption and authentication features. MAC filtering is another wireless security method, but it can be easily bypassed by spoofing MAC addresses. RADIUS (Remote Authentication Dial-In User Service) and TACACS+ (Terminal Access Controller Access-Control System Plus) are network authentication protocols, but they are not wireless security methods by themselves. Verified References:
https://www.comptia.org/blog/wireless-security-standards https://www.comptia.org/certifications/a

Explanation
A restore point is a snapshot of the system settings and configuration at a specific point in time2. Creating a restore point before modifying the registry keys allows the technician to revert the system back to a previous state if something goes wrong or causes instability2. Updating the anti-malware software, running the PC in safe mode, and rolling back the system updates are not necessary steps before modifying the registry keys.

Explanation
The process of documenting who had possession of evidence at every step of the process is called chain of custody