Explanation: The CMOS battery powers the real-time clock (RTC) on the motherboard, which maintains the date and time when the computer is turned off. If the battery fails, the system will lose date and time settings, reverting to defaults on restart.
✑ Why Not A (OS updates): While OS updates can sometimes cause time issues, they don’t typically affect changes persisting after shutdown.
✑ Why Not C (NTP server): An incorrect NTP server setting would cause the system to synchronize incorrectly, but this issue relates to time resetting during power-off.
✑ Why Not D (RAM): RAM is volatile memory and unrelated to storing persistent time settings.

Explanation: The technician should check the MAC filtering list next as the new router may have a different MAC address than the old router.

References: CompTIA A+ Certification Exam Guide, Exam 220-1001, Page 332

Explanation: Self-encrypting hardware, such as self-encrypting drives (SEDs), provides an effective solution for securing data with minimal user interaction. SEDs automatically encrypt all data stored on the drive without requiring any special software or user action, ensuring that data remains protected even if the drive is removed from the device. This feature is particularly beneficial for remote users who may not consistently follow manual encryption procedures, offering a seamless and user-transparent method to secure sensitive data.

Explanation: Metered utilization of cloud resources refers to payments made only for resources that are used. Cloud providers offer a pay-as-you-go model where customers are charged based on their usage of resources. Customers can easily scale up or down their usage of resources as per their needs and only pay for what they use. References: CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition by Mike Meyers (Page 642)

Explanation: Dynamic Host Configuration Protocol (DHCP) is a network service used to automatically assign IP addresses and other network configuration details (such as subnet masks and default gateways) to devices on an enterprise-wide network.
✑ Why Not A (DNS): DNS resolves domain names to IP addresses but does not allocate IP addresses.
✑ Why Not B (Syslog): Syslog is used for logging system events, not IP address management.
✑ Why Not C (Telnet): Telnet is a protocol for remote access, not for IP allocation.

Explanation: A community cloud is designed for multiple organizations with shared goals or projects, allowing collaboration while maintaining a level of privacy. This cloud model is ideal for the scenario where organizations are working together and need to migrate project-related data to the cloud.
✑ Why Not A (Public): Public cloud is shared among all users and lacks the collaboration-specific features of a community cloud.
✑ Why Not B (Hybrid): Hybrid cloud combines public and private resources but is not tailored to multiple organizations working on a joint project.
✑ Why Not C (Private): Private cloud is exclusive to a single organization and unsuitable for collaboration among multiple entities.

Explanation: FTP (File Transfer Protocol) uses TCP ports 20/21 and transfers data in cleartext, which means the data is not encrypted and can be read by anyone who intercepts it. This makes FTP insecure for transferring sensitive information. SSH (Secure Shell), on the other hand, uses port 22 and encrypts data, making it more secure. SNMP (Simple Network Management Protocol) uses ports 161/162 and is used to monitor network devices. Telnet uses port 23 and transfers data in cleartext, making it insecure. References: CompTIA A+ Certification Exam: Core 1 - Page 199

Explanation: The technician failed to properly diagnose the issue by not establishing a theory of probable cause. Instead of investigating why the network drives were accessible wirelessly but not when docked, the technician assumed a faulty network card and ordered a new laptop. Proper troubleshooting involves developing a theory of what might be causing the problem, based on the symptoms and available information, and then testing that theory. In this case, the issue could have been related to docking station settings, network configurations, or hardware issues specific to the docking connection.
References: This answer is grounded in standard troubleshooting methodologies, which emphasize the importance of logically deducing the most likely cause of a problem before proceeding with more drastic measures such as replacing hardware.

Explanation: The tool that the technician should use to see all drives is Diskmgmt. Diskmgmt is a Windows utility that allows you to manage disk drives and partitions on your computer. It can be used to view all drives, including USB drives, that are connected to the computer12.

Explanation: If a laptop does not charge when connected to a USB 3.1 docking station despite the AC adapter being plugged in, the most likely reason is that the dock is not designed to provide power passthrough. This means that the dock's primary function is connectivity for peripherals rather than power delivery to the laptop. The other options are possible but less likely if the sole issue is the absence of charging functionality when the dock and its power supply are properly connected.
References: CompTIA A+ Core 1 (220-1101) materials, which discuss the functionality and specifications of peripheral devices including docking stations.

Explanation: This is a safe and sensible option if you value your data more than anything else. You don’t want to risk losing your data by trying other methods that may worsen the situation. You can use a software tool or a service provider to recover your data before attempting any repairs.

Explanation: Before creating a virtual machine (VM) on a computer, it's crucial to ensure that the CPU supports virtualization and that this feature is enabled in the BIOS (or UEFI) settings. While sufficient RAM and hard drive space are also important for running VMs effectively, and compatibility with the graphics card might be a consideration for VMs with intensive graphical requirements, the foundational step is to verify that the CPU supports virtualization and that this feature is activated in the BIOS settings. This is because virtualization technology, often referred to as VT-x (on Intel CPUs) or AMD-V (on AMD CPUs), is a prerequisite for running most virtualization software efficiently.