The correct answer is D. Disk encryption . A laptop used while traveling internationally has a higher risk of loss, theft, or unauthorized physical access. Disk encryption protects the data even if the attacker removes the drive and connects it to another computer. Quentin Docter's Complete Study Guide explains that BitLocker uses drive encryption to protect files, including startup and login-related files, and that a TPM can safely store the encryption key so it is not stored on the encrypted disk. It also notes that BitLocker helps mitigate data loss because a removed drive remains encrypted. The Mike Meyers/Mark Soper material similarly states that BitLocker encrypts the whole drive and protects data if a portable computer or hard drive is stolen. A screen lock is useful, but it only protects an active or idle session. Content filtering controls web access, and restricted login times limit when users can sign in, but neither provides strong protection for stored data on a stolen laptop.

The correct answer isVNC (Virtual Network Computing). VNC is a graphical desktop-sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. It is platform- independent and widely supported on Linux, which makes it ideal for providinginteractive remote support for a Linux-based operating system. It allows the technician not only to view the remote desktop session but also tocontrol it, fulfilling the need to see and interact with the user's session.
A). VPN(Virtual Private Network) creates a secure tunnel to a network but doesnot provide desktop sharing or session controlby itself.
C). SSH(Secure Shell) provides secure command-line access to Unix/Linux systems but does not offergraphical desktop interaction, which is a requirement in this case.
D). RDP(Remote Desktop Protocol) is primarily a Microsoft protocol, and although it can be made to work on Linux, it isnot natively supported on legacy Linux systems, and thusless suitablethan VNC in this scenario.
CompTIA A+ 220-1102 Core 2 Objective Reference:
Objective 1.8 - Given a scenario, use features and tools of the operating system.
Under this objective, candidates are expected to be familiar with remote access technologies, includingRDP, SSH, and VNC, and understand their appropriate uses and limitations on different platforms such as Windows and Linux.

To allow Remote Desktop Protocol (RDP) access, the firewall must be configured to allow inbound connections on TCP port 3389. If the Windows Firewall blocks RDP, users will not be able to connect remotely even if the feature is enabled in system settings.
B). Computer Management allows configuration of services and local users, but not network access.
C). User Accounts is for account setup and control, but enabling remote access requires firewall configuration.
D). Ease of Access is unrelated to remote connectivity-it's for accessibility features.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast security measures and firewall settings.
Study Guide Section: Enabling and securing RDP via firewall settings

An Acceptable Use Policy (AUP) outlines the rules and guidelines for employees or users regarding the appropriate use of company systems, resources, and internet access. It defines permitted and prohibited activities, helping to mitigate security risks and establish clear behavioral expectations.
B). MNDA (Mutual Non-Disclosure Agreement) deals with confidentiality, not usage guidelines.
C). DRM (Digital Rights Management) controls access to copyrighted content.
D). EULA (End User License Agreement) pertains to software licensing, not internal policies.
Reference:
CompTIA A+ 220-1102 Objective 4.3: Explain common safety and environmental impacts and procedures.
Study Guide Section: Organizational policies - AUP, security best practices