See Explanation below for complete solution.
Explanation:
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-

A screenshot of a computer AI-

A Potentially Unwanted Program (PUP) is software that a user may not have knowingly installed. It often gets bundled with legitimate software and installs without full disclosure. PUPs can affect performance, change system settings, or display unwanted ads but are not necessarily malicious like viruses or ransomware.
A). Viruses replicate and spread; they are generally more harmful and not " bundled " in the same way.
B). Ransomware encrypts files for payment and is deliberately malicious.
D). A Trojan disguises itself as legitimate software to perform malicious actions but is not typically pre- bundled by legitimate publishers.
Reference:
CompTIA A+ 220-1102 Objective 2.5: Given a scenario, detect, remove, and prevent malware using appropriate tools and methods.
Study Guide Section: Types of malware - PUPs and bundled software

PXE (Preboot Execution Environment) allows workstations to boot over the network and download an OS image from a server. It is ideal for automating mass deployments using baseline images across many machines without the need for physical media.
A). An ISO is a disk image file but requires mounting or physical media.
B). Secure Boot is a security feature, not a method of deploying OS images.
C). USB requires manual installation and is not suitable for automated deployment at scale.
Reference:
CompTIA A+ 220-1102 Objective 1.4: Given a scenario, use appropriate Microsoft operating system installation methods.
Study Guide Section: Remote installation methods - PXE boot deployment

Within the Windows ecosystem, Microsoft introduced ReFS (Resilient File System) as the next-generation filesystem concept designed to improve integrity and resilience, particularly for large storage and fault- tolerant configurations. Among the options, XFS is a Linux filesystem, APFS is Apple's modern filesystem, and exFAT is primarily intended for removable media compatibility-not as an NTFS successor.
In the provided CompTIA A+ practice material set, ReFS is explicitly identified as "Resilient File System (ReFS)" and discussed as a Windows storage/filesystem technology. This aligns with the exam framing that ReFS is the Windows-side "successor" concept compared with NTFS in capability and design goals for modern storage scenarios.
Therefore, the correct answer is ReFS (A).

The scenario strongly suggests the device has been compromised by malware delivered through a social- engineering message (an "unexpected overdue invoice" attachment). After the attempt, the phone shows system-wide performance issues affecting the browser and other apps, and a restart does not fix it-this matches common mobile malware symptoms such as sluggish response time and abnormal behavior that persists across reboots. When symptoms persist beyond a soft reset, the most reliable remediation is to return the device to a known-good state by performing a factory reset (wipe). Quentin Docter explains that a factory reset is much more effective and will remove malware along with applications, and that when a security symptom indicates malware, the device should be factory reset and then protected with antimalware before reinstalling apps.The All-in-One guide similarly teaches an escalation path: stop/uninstall suspect apps, and if these steps don't resolve the behavior, use a factory reset to cleanse the device.#turn27file4 L9-L14# Mike Meyers' Lab Manual also lists factory resets among the key tools for resolving persistent mobile app security issues.
References: Quentin Docter - CompTIA A+ Complete Study Guide (mobile malware symptoms; factory reset removes malware)#turn27file2 L9-L15#; Travis Everett & Andrew Hutz - CompTIA A+ All-in-One Exam Guide (factory reset to cleanse device when symptoms persist)#turn27file4 L9-L14#; Mark Soper - Mike Meyers' A+ Lab Manual (app security troubleshooting tools include factory resets)