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

The scenario described is characteristic of a malware tactic known as scareware, where users are tricked into installing malware through false alerts claiming that their system is infected. The anti-malware software installed in response to a pop-up is likely malicious, causing the system to run slowly and display frequent pop-ups.

Before starting a bare-metal installation of Windows 10, ensuring that there is sufficient storage space on the system's hard drive or SSD is crucial. This is because the installation files need enough room to be copied and for the operating system to be installed and function properly. Without adequate storage, the installation process can fail or the operating system might not perform optimally. Other prerequisites like internet connection, product key, and specific firmware types might be necessary at different stages of installation or activation, but the fundamental requirement is enough storage space to accommodate the new OS.

When an Android device experiences slow boot times and application crashes after installing apps from a third-party website, scanning the system for malware is a critical first step. Third-party sources can often host malicious software that can compromise device performance and security. A malware scan can identify and remove such threats, potentially resolving the performance issues and application instability. Clearing the web browser cache, enrolling the device in an MDM system, and confirming app compatibility are useful steps but do not address the immediate concern of potential malware introduced by third-party app installations.

The most important environmental control to maintain the safety of a data center is Temperature control (A). Proper temperature control is crucial to prevent overheating, which can lead to hardware failure, reduced performance, and shortened equipment lifespan. Data centers house high-density computing equipment that generates significant amounts of heat, making effective temperature management essential for maintaining operational stability and reliability​​.

When a smartphone is unable to download and install the latest OS update and is operating slower than expected, one of the first things to check is the available storage space. Operating system updates often require a significant amount of free space for downloading and installing, and insufficient space can prevent the update process from initiating or completing.

Available Storage Space: Smartphones use their internal storage to hold the OS, apps, user data, and temporary files needed for updates. If the storage is nearly full, the device can slow down due to the lack of space for writing temporary files and may not have enough space to download and install updates. Clearing up space can resolve these issues.

Checking application permissions (A) might be relevant for specific app-related issues but is less likely to affect OS updates. The battery charge level (C) can affect the initiation of an update, as some devices require a minimum charge level to start the update process, but it doesn't typically cause slow operation. While a stable Wi-Fi connection (D) is necessary for downloading updates, it's less likely to be the cause of slowed operation and update issues compared to insufficient storage space.

Developer Mode on Windows 10 is a feature that allows developers to test and debug their applications on their devices, as well as sideload apps and access other developer tools12. To enable Developer Mode, the user needs to go to the Settings app, select Update & Security, choose For Developers, and switch to Developer Mode123. However, enabling Developer Mode requires internet connectivity, as Windows will download and install a package of features, such as Windows Device Portal and SSH services, that are necessary for Developer Mode124. If the user does not have internet connectivity, they will receive a “failed to install package” message when trying to enable Developer Mode4. Therefore, the first thing that the technician should do is to ensure that the laptop has internet access, either through Wi-Fi or Ethernet, and then try to enable Developer Mode again4

VNC (Virtual Network Computing) is a remote access tool that allows the technician to access and control various Windows, Linux, and macOS desktops on the company LAN using a graphical user interface. VNC does not require an external internet connection, as it works over a local network or a VPN. VNC uses a client-server model, where the server runs on the remote desktop and the client connects to it from another device. VNC can transmit the keyboard and mouse events from the client to the server, and the screen updates from the server to the client, enabling the technician to interact with the remote desktop as if it were local12.

VNC is a better option than the other choices because:

RMM (Remote Monitoring and Management) (B) is not a single software solution, but a category of software solutions that enable IT professionals to remotely monitor, manage, and troubleshoot multiple devices and networks. RMM software may include remote access tools, but also other features such as patch management, backup and recovery, security, reporting, and automation. RMM software may require an external internet connection, as it often relies on cloud-based services or web-based consoles34.

RDP (Remote Desktop Protocol) © is a remote access tool that allows the technician to access and control Windows desktops on the company LAN using a graphical user interface. However, RDP is not compatible with Linux or macOS desktops, unless they have third-party software installed that can emulate or translate the RDP protocol. RDP also has some security and performance issues, such as encryption vulnerabilities, bandwidth consumption, and latency problems56.

SSH (Secure Shell) (D) is a remote access tool that allows the technician to access and control various Windows, Linux, and macOS desktops on the company LAN using a command-line interface. SSH does not require an external internet connection, as it works over a local network or a VPN. SSH uses encryption and authentication to secure the communication between the client and the server. However, SSH does not provide a graphical user interface, which may limit the functionality and usability of the remote desktop7 .

To change the wallpaper on a Windows 10 laptop, the "Personalization" settings should be used. These settings allow users to customize themes, which include various aspects of the desktop environment such as the desktop wallpaper, screen saver, color scheme, and more. This makes "Personalization" the correct option for customizing the wallpaper.References: Official CompTIA A+ Core 1 and Core 2 Student Guide​​.