When a user needs to install optional features for a program that is already installed, the technician should:
* Go to Programs and Features: Access this via the Control Panel.
* Select the program: Find the installed program in the list.
* Click on Change: The "Change" option allows modifications to the installed program, such as adding or removing features, without completely uninstalling and reinstalling the program.
This method is the most efficient and avoids unnecessary reinstallation of the software, which could lead to data loss or require reconfiguration.
Reference:
CompTIA A+ 220-1102 Exam Objectives, Section 1.4: Given a scenario use the appropriate Microsoft Windows 10 Control Panel utility.
Windows application management documentation.

The tool that the technician will most likely use to remotely connect to a Linux desktop is VNC. VNC stands for Virtual Network Computing and is a protocol that allows remote access and control of a graphical desktop environment over a network. VNC is natively designed for Linux and can also support other operating systems, such as Windows and Mac OS. VNC can be used to assist users with troubleshooting by viewing and interacting with their desktops remotely. MFA stands for Multi-Factor Authentication and is a method of verifying identity using two or more factors, such as something you know, something you have or something you are. MFA is not a tool that can be used to remotely connect to a Linux desktop but a technique that can be used to enhance security for systems or services. MSRA stands for Microsoft Remote Assistance and is a feature that allows remote access and control of a Windows desktop environment over a network. MSRA is not natively designed for Linux and may not be compatible or supported by Linux systems. RDP stands for Remote Desktop Protocol and is a protocol that allows remote access and control of a Windows desktop environment over a network. RDP is not natively designed for Linux and may not be compatible or supported by Linux systems. References: CompTIA A+ Core 2 (220-1002) Certification Exam Objectives Version 4.0, Domain 1.6

Samba is a software suite that allows Linux servers and desktops to integrate with Windows Active Directory environments. Samba can act as a domain controller, a file server, a print server, or a client for Windows networks. Samba can also provide authentication and authorization services for Linux users and devices using Active Directory.

Detailed Explanation with Core 2 References:The ipconfig command displays the IP address, subnet mask, and default gateway for all network adapters in a Windows computer. This output specifically shows details about an Ethernet adapter, which is directly tied to ipconfig. According to Core 2, understanding command- line tools like ipconfig is essential for network troubleshooting (Core 2 Objective 1.2).