The appropriate choice is "Acceptable Use Policy" (Option D). This policy defines the rules for how users should use the system, including login expectations and proper behavior when using company resources. It's typically displayed as a splash screen to remind users of their responsibilities.
* End-user license agreement (Option A) pertains to the terms of software usage.
* Non-disclosure agreement (Option B) deals with confidentiality but is unrelated to login behavior.
* Regulatory compliance (Option C) relates to adherence to laws and regulations, but it is not typically displayed on a splash screen for login expectations.
CompTIA A+ Core 2 References:
* 4.6 - Explain the importance of prohibited content/activity and acceptable use policies.

A VPN (virtual private network) is a protocol that creates a secure tunnel between two devices over the internet, hiding their IP addresses and encrypting their traffic. DNS (domain name system) is a protocol that translates domain names to IP addresses. IPS (intrusion prevention system) is a device that monitors and blocks malicious network traffic. SSH (secure shell) is a protocol that allows remote access and command execution on another device. Verified References: https://www.comptia.org/blog/what-is-a-vpn https://www.
comptia.org/certifications/a

If this file is missing or corrupted, it can cause application crashes or errors when trying to open websites in a browser. To fix this, the technician can perform a system file check, which is a utility that scans and repairs corrupted or missing system files1. To perform a system file check, the technician can follow these steps:
Open the Command Prompt as an administrator. To do this, type cmd in the search box on the taskbar, right-click on Command Prompt, and select Run as administrator.
In the Command Prompt window, type sfc /scannow and hit Enter. This will start the scanning and repairing process, which may take some time.
Wait for the process to complete. If any problems are found and fixed, you will see a message saying Windows Resource Protection found corrupt files and successfully repaired them. If no problems are found, you will see a message saying Windows Resource Protection did not find any integrity violations.
Restart your computer and check if the issue is resolved.

Task Manager is the best tool to use to disable applications on startup in Windows 10. Task Manager is a built-in utility that shows the current processes, performance, and users on a system. It also has a Startup tab that lists the applications that run on boot and their impact on the system. The technician can use Task Manager to disable or enable any application on startup by right-clicking on it and selecting the appropriate option. System Configuration, Performance Monitor, and Group Policy Editor are other tools that can be used to manage system settings, but they are not as simple or convenient as Task Manager for this task. References:
* Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 13
* CompTIA A+ Complete Study Guide: Core 1 Exam 220-1101 and Core 2 Exam ..., page 103

Malware is malicious software that can cause damage or harm to a computer system or network4. A technician has verified a computer is infected with malware by observing unusual behavior, such as slow performance, pop-ups, or unwanted ads. The technician isolates the system and updates the anti-malware software to prevent further infection or spread of the malware. The next step is to run repeated remediation scans until the malware is removed. A remediation scan is a scan that detects and removes malware from the system. Running one scan may not be enough to remove all traces of malware, as some malware may hide or regenerate itself.