220-1102 Exam Dumps - CompTIA A+ Certification Core 2 Exam

 Before removing a Trojan virus from a workstation, a technician should disable System Restore. System Restore is a feature that allows users to restore their system to a previous state in case of problems or errors. However, System Restore can also restore infected files or registry entries that were removed by antivirus software or manual actions. By disabling System Restore, a technician can ensure that the Trojan virus is completely removed and does not reappear after a system restore operation. Scheduling a malware scan may help detect and remove some malware but may not be effective against all types of Trojan viruses. Educating the end user may help prevent future infections but does not address the current issue of removing the Trojan virus. Running Windows Update may help patch some security vulnerabilities but does not guarantee that the Trojan virus will be removed. References: CompTIA A+ Core 2 (220-1002) Certification Exam Objectives Version 4.0, Domain 1.3

On macOS, uninstalling an application typically involves locating the app in Finder and dragging it to the Trash. This method is straightforward and commonly used for removing unwanted applications. The other options do not directly relate to the standard process of uninstalling applications on a Mac.

Linux is known for its high degree of customizability and flexibility, making it an ideal choice for organizations looking to deploy a customizable operating system. Unlike proprietary operating systems, Linux allows users to modify or replace almost any part of the system, from the kernel to the desktop environment and applications, to suit their specific needs.

Linux: This open-source operating system provides access to the source code, enabling extensive customization. Organizations can tailor Linux distributions to fit specific requirements, making it a popular choice for servers, specialized workstation environments, and embedded systems.

Windows 10 (A) and macOS (B) offer some level of customization but are more restricted due to their proprietary nature. Chrome OS (D) is designed for simplicity and security, focusing on web applications, which limits deep system-level customizations. iOS (E) is designed for Apple's mobile devices and is not applicable for organizational deployment beyond mobile and tablet devices; it also offers limited customization compared to Linux.

Screen Sharing is the default system tool that can be used in macOS to allow the technician to view the screen simultaneously with the user. Screen Sharing is a built-in app that lets users share their Mac screen with another Mac on the network. The user can enable screen sharing in the System Preferences > Sharing pane, and then allow other users to request or enter a password to access their screen1. The technician can launch the Screen Sharing app from the Spotlight search or the Finder sidebar, and then enter the user’s name, address, or Apple ID to connect to their screen2. Remote Assistance is a Windows feature that allows users to invite someone to help them with a problem on their PC3. Remote Desktop Protocol (RDP) is a protocol that allows users to connect to a remote computer over a network4. Virtual Network Computing (VNC) is a technology that allows users to share their screen with other devices using a VNC viewer app1. These are not default system tools in macOS, although they can be used with third-party software or settings.

Improving password security is crucial to protect user accounts from unauthorized access. Requiring passwords to include four character types—uppercase letters, lowercase letters, numbers, and special characters—significantly enhances password complexity. This diversity in characters makes passwords much harder to guess or crack using common methods like brute force attacks, thereby improving overall security.

Requiring four character types: This approach forces users to create more complex and less predictable passwords, reducing the risk of simple passwords that are easy to exploit.

Decreasing the password expiration times (B) can encourage users to change their passwords more frequently but does not directly address the issue of password complexity. Enabling an automatic lock timer (C) can add a layer of security by locking accounts after a period of inactivity, but it does not improve the strength of the passwords themselves. Adding two characters to the minimum password length (D) can help to some extent by making passwords longer, but without requiring a mix of character types, passwords might still remain relatively easy to guess or crack.

For a SOHO (Small Office/Home Office) router setup where the goal is to only allow specific computers on the network, MAC filtering is the appropriate solution:

Configure MAC filtering: This security measure involves creating a list of allowed device MAC (Media Access Control) addresses in the router's settings. Only devices with MAC addresses on this list will be able to connect to the network, effectively restricting access to authorized computers only.

The pwd command, which stands for "print working directory," is used in Linux and Unix-like operating systems to display the current directory in which the user is operating. This command outputs the full pathname of the current working directory, helping users to understand their current location in the filesystem hierarchy.

pwd: When executed, it provides the absolute path of the directory you're currently in, which is useful for navigation and scripting purposes.

Other options listed:

dig: This command is used for querying DNS name servers for information about host addresses, mail exchanges, name servers, and related information.

find: This command is used to search for files in a directory hierarchy based on specified criteria (such as name, modification date, size, etc.).

cat: Short for "concatenate," this command is used to read the contents of files and output them to the terminal.

To troubleshoot a user's computer remotely while the user is connected, the best option is Microsoft Remote Assistance (MSRA). MSRA allows the technician to view and control the user's screen with their permission, facilitating an effective troubleshooting session without disconnecting the user.