Comprehensive and Detailed Explanation From Exact Extract:
Windows Helloallows biometric and PIN-based login, which are easier and more user-friendly than passwords.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Windows Hello supports biometric authentication and PINs, providing easier and secure access especially for users who have trouble remembering passwords."

Comprehensive and Detailed Explanation From Exact Extract:
UPS batteries are heavy and often located at the bottom of racks to maintain balance. Safe removal requires the use of correct lifting techniques to avoid injury. OSHA and workplace safety standards emphasize ergonomic handling when dealing with heavy equipment.
A: Fire suppression readiness is important for fire safety but not specifically relevant to battery removal.
C: Antistatic bags are for electronic components, not heavy battery modules.
D: A face mask is not generally necessary unless there is a chemical leak, which is not indicated here.
Reference:
CompTIA A+ 220-1102 Objective 4.3: Explain common safety and environmental impacts and procedures.
Study Guide Section: Safe handling procedures - lifting techniques, battery handling

Comprehensive and Detailed Explanation From Exact Extract:
Highmemory usage (97%)suggests the system is overloaded with active processes. The technician should close unneeded applications to free up RAM and improve performance.
FromMike Meyers' Lab Manual:
"When memory usage is near capacity, close all non-essential programs. This can dramatically improve response time without needing hardware upgrades."

Comprehensive and Detailed Explanation From Exact Extract:
Mobile Device Management (MDM) allows an organization to enforce security policies, such as denying network access to jailbroken/rooted devices.
From the All-in-One Exam Guide by Travis Everett and Andrew Hutz:
"MDM software allows administrators to monitor, manage, and secure mobile devices connected to enterprise networks. One key feature is the detection and denial of access for rooted or jailbroken devices".
Quentin Docter also confirms:
"An MDM solution can check if a device has been rooted and prevent it from accessing the network, ensuring compliance with corporate security standards".