Comprehensive and Detailed Explanation From Exact Extract:
Thepowercfg commandis a built-in utility for controlling power settings including hibernation. It can be used in scripts and does not require domain access.
FromQUENTIN DOCTER - COMPTIA A+ COMPLETE study GUIDE:
"The powercfg command provides granular control of power settings, useful for scripting and configuring systems without Group Policy access."

Comprehensive and Detailed Explanation From Exact Extract:
High battery drain is often due to apps running in the background or using GPS during travel. Thefirst stepshould always be tocheck battery usage statisticsto see if an application is misbehaving.
FromAll-in-One Exam Guide:
"Travel conditions can increase app activity, especially navigation or social media. Check app battery usage before assuming hardware faults."

Comprehensive and Detailed Explanation From Exact Extract:
VPN clients often create virtual network adapters. If the software wasn't uninstalled properly or crashed during install, leftover (often hidden) virtual adapters can prevent reinstallation. The proper solution is to delete hidden network adapters using Device Manager (with "Show hidden devices" enabled).
A: OS updates won't fix a leftover driver or adapter issue.
B: Mapping an adapter to the software is not a standard or viable solution.
C: Firmware updates apply to physical adapters, not virtual VPN adapters.
Reference:
CompTIA A+ 220-1102 Objective 3.1: Troubleshoot common Windows OS and network issues.
Study Guide Section: Troubleshooting network adapter conflicts and VPN client errors

Comprehensive and Detailed Explanation From Exact Extract:
Disk optimization tools can sometimes corrupt theMaster Boot Record (MBR). If BIOS sees the drive but can't boot, repairing the MBR using installation media is the correct next step.
FromAll-in-One Exam Guide:
"When BIOS recognizes the drive but no OS is found, the issue is often with the boot record. Use installation media to access recovery tools and repair the MBR or boot loader."

Comprehensive and Detailed Explanation From Exact Extract:
Content filtering allows administrators to block or allow access to websites based on categories (e.g., social media, adult content, streaming). On a SOHO (Small Office/Home Office) router, this is often built-in or available via DNS-level filtering, and is the most appropriate method for enforcing browsing policies without needing to touch each individual device.
A: Secure management access protects router admin interfaces but doesn't control user browsing.
B: Group Policy Editor is a Windows tool, not used on routers.
D: A firewall can block specific IPs or ports, but it doesn't categorize web content.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast security measures and tools.
Study Guide Section: SOHO router security features - content filtering, parental controls