If a system becomes unresponsive while opening a specific spreadsheet, the issue is likely tied to the file's size or the complexity of its content (e.g., embedded formulas, macros, or graphics). High memory utilization caused by the file can lead to temporary freezing or application " Not Responding " messages. Checking the spreadsheet ' s file size and monitoring system memory in Task Manager will help isolate performance bottlenecks.
A). Anti-malware logs are important for security troubleshooting but less likely relevant to spreadsheet-related performance issues.
B). Workstation repair is for system-wide problems and not necessary for a single-file issue.
C). Bandwidth relates to network usage and wouldn't impact opening a local file.
Reference:
CompTIA A+ 220-1102 Objective 3.3: Troubleshoot common application issues.
Study Guide Section: Troubleshooting application slowness and performance using Task Manager and resource monitoring tools

The correct answer is B. Turn off notifications in the browser, because the described behavior matches browser notification abuse, not traditional pop-ups. Modern browsers allow websites to request permission to send notifications. If a user previously allowed notifications from a retail site, the site can continue sending onscreen alerts even when pop-up blockers are enabled.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, browser notification permissions are separate from pop-up blocking settings. Pop-up blockers prevent new browser windows or tabs from opening, but they do not block push notifications that were previously approved by the user. These notifications can persist long after visiting a site.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide explains that one of the first troubleshooting steps for repeated browser messages is to review and disable site notification permissions. This directly targets the root cause without affecting browser configuration or user data.
The Mike Meyers / Mark Soper Lab Manual reinforces that resetting or reinstalling the browser is an excessive step unless configuration corruption is suspected. Clearing cache removes stored files but does not revoke notification permissions.
Because the messages originate from previously allowed browser notifications, the most appropriate and targeted fix is to disable notifications in the browser, making B the correct answer.

An evil twin is a rogue wireless access point set up to mimic a legitimate Wi-Fi network. Unsuspecting users may connect to it, giving attackers the opportunity to intercept traffic, steal credentials, or install malware.
The evil twin often uses the same SSID as the real network to fool users.
A). Stalkerware is spyware installed to track user activity, typically on personal devices.
C). Tailgating is a physical security breach involving unauthorized entry behind someone with access.
D). Shoulder surfing involves observing a person entering confidential data, such as PINs or passwords.
Reference:
CompTIA A+ 220-1102 Objective 2.3: Compare and contrast social engineering and wireless attacks.
Study Guide Section: Wireless threats - rogue APs and evil twin scenarios

The requirement is secure remote access to both Linux and Windows servers while working from home. A VPN is designed to securely extend internal network access across the public Internet. Quentin Docter states that a "virtual private network (VPN) extends your company's internal network across the Internet," allowing clients to connect "securely and privately," and that it creates a secure tunnel "through the process of encryption and encapsulation," making the remote host appear as part of the internal network with an internal IP.
Mike Meyers' Lab Manual reinforces that VPNs work by "setting up an encrypted tunnel between the two points-over the open Internet-creating what we call a virtual private network (VPN)," enabling remote users to function as if they were plugged into the office LAN.
FTP is not secure by default and is file-transfer-only (not full network access). RDP is Windows-focused and provides a remote desktop session, not generalized secure access to mixed OS servers. RMM is a management platform for IT monitoring/maintenance, not the primary secure access method for end users. Therefore, VPN (B) best meets the requirement.

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."