Comprehensive and Detailed Explanation From Exact Extract:
Resource Monitor provides real-time monitoring of system performance and resource usage, including CPU, memory, disk, and network usage. It helps technicians identify performance bottlenecks (e.g., high memory or CPU usage) that can cause slowdowns in applications over time without producing crash errors.
A: Reliability history logs application crashes or errors - not helpful if the app doesn't crash.
B: Computer Management is a broad utility with limited real-time monitoring capability.
D: Disk is too vague - tools like CHKDSK can help with disk errors but not general performance degradation.
Reference:
CompTIA A+ 220-1102 Objective 3.2: Given a scenario, troubleshoot common personal computer issues.
Study Guide Section: System performance tools - Resource Monitor, Task Manager

Host 2, Host 3, Host 4 , Host 5 ,Host 6, Host 7, Host 8 , Media Server - Stop All unwanted and malicious service (Persistance.j1zpxn Installer Service) from all the listed host and Media servers Refer screenshot below on the required service started/stopped on host2, same service to be started and stopped across all host servers.

A screenshot of a computer AI-generated content may be incorrect.

A screenshot of a computer AI-generated content may be incorrect.

Comprehensive and Detailed Explanation From Exact Extract:
Cloud-based software often enforcesdevice limitsper license. Before reinstallation or switching software, checking license allocations is the most logical first step.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Many cloud apps enforce user or device count restrictions. When an install fails, check licensing before troubleshooting other areas."

TheLocal Users and Groups Manager (lusrmgr.msc)is the utility for managing user accounts, including renaming the default Administrator.
FromQuentin Docter - Complete Study Guide:
"The lusrmgr.msc snap-in allows renaming and managing local user accounts, including the default administrator." .

Comprehensive and Detailed Explanation From Exact Extract:
Apps like GPS or roaming services often drain battery during travel.Checking app utilizationhelps identify battery drain sources.
FromQUENTIN DOCTER - COMPTIA A+ COMPLETE study GUIDE:
"Monitoring app activity can reveal high-power usage apps running in the background, especially when mobile data or GPS is active."