The appropriate power supply specification for the described workstation setup is 12V, 500W output. This specification ensures that the power supply can handle the combined power requirements of an ATX motherboard, multi-core processor, dedicated graphics solution, SATA hard drive, and DDR4 memory. The
12V rail is crucial for components such as the CPU and graphics card, while a 500W output provides sufficient power overhead to support the system under load, as well as potential future upgrades or additional components.
References:
* CompTIA A+ Core 1 (220-1101) Exam Objectives, Section 3.0 Hardware, specifically the subsection on power supplies and their specifications, including voltage outputs and wattage requirements for various computer components.
* General knowledge on the power requirements of ATX motherboards, multi-core processors, dedicated graphics cards, SATA hard drives, and DDR4 memory, ensuring compatibility and efficient operation.

A type II hypervisor is a software application that runs on top of a host operating system and creates virtual machines that are isolated from the host. A type II hypervisor provides the highest level of isolation from the host operating system because it does not have direct access to the hardware resources and relies on the host operating system for drivers and services. A type II hypervisor also allows the guest operating systems to run different types of operating systems than the host.
References: The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook, page 223

The correct answer is B. Check the power supply wattage rating.
A possible cause of the desktop randomly shutting down during operations is that the power supply is not able to provide enough power for the high-end graphics card. The power consumption of today's graphics cards has increased a lot, and the top models demand between 110 and 270 watts from the power supply1.
Therefore, the technician should check the power supply wattage rating and make sure it is sufficient for the graphics card and the rest of the components. Confirming the power supply is grounded, checking whether the power supply is redundant, or confirming the power cables are well connected are not likely to solve this problem.

The 802.11ax protocol, also known as Wi-Fi 6, provides the fastest bandwidth among the options listed. It can achieve up to 10 Gbps of data transfer rate, using technologies such as OFDMA, MU-MIMO, and 1024- QAM. The 802.11ac protocol, or Wi-Fi 5, is the second fastest, with a maximum of 3.46 Gbps, followed by the 802.11n protocol, or Wi-Fi 4, with a maximum of 600 Mbps. The 802.11a protocol is the slowest, with a maximum of 54 Mbps
https://www.lifewire.com/wireless-standards-802-11a-802-11b-g-n-and-802-11ac-816553

The best way to improve the efficiency of the process of formatting and reconfiguring a development PC after every application test is complete is to implement a sandbox. A sandbox is a virtual environment that isolates the application from the rest of the system, allowing the developer to test the application without affecting the main operating system, files, or settings. A sandbox can also be easily reset, deleted, or duplicated, saving the time and effort of formatting and reconfiguring the PC. A sandbox can also provide security benefits, such as preventing malware or bugs from spreading to the system or the network.
Other options, such as installing an SSD, disabling hyperthreading, or enabling hardware acceleration, may improve the performance of the PC, but they do not address the issue of formatting and reconfiguring the PC after each test. An SSD (solid state drive) is a storage device that uses flash memory instead of spinning disks, and it can offer faster data access, lower power consumption, and less noise and heat. Hyperthreading is a feature of some CPUs (central processing units) that allows each core to run two threads simultaneously, increasing the multitasking and parallel processing capabilities of the PC. Hardware acceleration is a technique that uses the GPU (graphics processing unit) or other specialized hardware to perform some tasks faster than the CPU, such as rendering graphics, video, or audio.
References:
* What is a Sandbox? | How Does a Sandbox Work? | Avast1
* What is a Sandbox Environment? | Definition and FAQs2
* How to Use a Sandbox to Test Software - Lifewire3
* What is a Sandbox and How to Use One - Norton4
* What is a Sandbox? - Definition from Techopedia5