A sandbox is an isolated environment that allows for the testing of critical systems without the risk of them being negatively impacted by changes. A sandbox can be used to simulate real-world scenarios, experiment with new features, debug errors, or evaluate the performance and security of a system. A sandbox can be created using virtualization, emulation, or containerization technologies. A sandbox prevents any changes made in the testing environment from affecting the production environment, which is the actual system that is used by the end users.
https://www.comptia.org/training/books/a-core-2-220-1102-study-guide

The Processes tab in the Task Manager shows all the running processes on the computer, including applications and background services. The user can use this tab to identify the unresponsive application and end its process by right-clicking on it and selecting End task. This will free up the system resources and close the application. The other tabs in the Task Manager do not allow the user to address the situation. The Startup tab shows the programs that run when the computer starts, the Performance tab shows the system resource usage and statistics, and the Application history tab shows the resource usage of the applications over time

Windows is the operating system that typically requires the most computing resources from the host computer, compared to the other options. Computing resources include hardware components such as CPU, RAM, disk space, graphics card, and network adapter. The minimum system requirements for an operating system indicate the minimum amount of computing resources needed to install and run the operating system on a computer. The higher the minimum system requirements, the more computing resources the operating system consumes.
According to the web search results, the minimum system requirements for Windows 10 and Windows 11 are as follows12:
* CPU: 1 GHz or faster with two or more cores (Windows 10); 1 GHz or faster with two or more cores on a compatible 64-bit processor (Windows 11)
* RAM: 1 GB for 32-bit or 2 GB for 64-bit (Windows 10); 4 GB (Windows 11)
* Disk space: 16 GB for 32-bit or 32 GB for 64-bit (Windows 10); 64 GB (Windows 11)
* Graphics card: DirectX 9 or later with WDDM 1.0 driver (Windows 10); DirectX 12 compatible with WDDM 2.0 driver (Windows 11)
* Network adapter: Ethernet or Wi-Fi (Windows 10); Ethernet or Wi-Fi that supports 5 GHz (Windows
11)
The minimum system requirements for macOS Ventura are as follows:
* CPU: Intel Core i3 or higher, or Apple M1 chip
* RAM: 4 GB
* Disk space: 35.5 GB
* Graphics card: Metal-capable
* Network adapter: Ethernet or Wi-Fi
The minimum system requirements for Chrome OS are as follows:
* CPU: Intel Celeron or higher
* RAM: 2 GB
* Disk space: 16 GB
* Graphics card: Integrated
* Network adapter: Ethernet or Wi-Fi
The minimum system requirements for Android are as follows:
* CPU: 1 GHz or higher
* RAM: 512 MB
* Disk space: 8 GB
* Graphics card: OpenGL ES 2.0
* Network adapter: Ethernet or Wi-Fi
The minimum system requirements for Linux vary depending on the distribution, but a common example is Ubuntu, which has the following minimum system requirements:
* CPU: 2 GHz dual core processor or better
* RAM: 4 GB
* Disk space: 25 GB
* Graphics card: 1024 x 768 screen resolution
* Network adapter: Ethernet or Wi-Fi
Based on the comparison of the minimum system requirements, Windows has the highest requirements for CPU, RAM, disk space, and graphics card, while Chrome OS and Android have the lowest requirements.
macOS and Linux have moderate requirements, depending on the hardware and software configuration.
Therefore, Windows is the operating system that typically requires the most computing resources from the host computer.
References:
* Windows, macOS, Chrome OS, or Linux: Which Operating System Is Right for You?1
* Comparison of operating systems3
* Windows 10 vs 11 Minimum System Requirements: Why Need a New One?2
* macOS Monterey - Technical Specifications
* Chrome OS - Wikipedia
* Android - Wikipedia
* Installation/SystemRequirements - Community Help Wiki

The correct answer is B) Submit a change request form. A change request form is a document that describes the proposed change, the reason for the change, the expected benefits and impacts, the risks and mitigation strategies, the implementation plan, and the approval process. A change request form is an essential part of change management best practices, as it helps to ensure that the change is well-planned, communicated, and authorized before it is implemented12.
A change request form should be submitted immediately before network use is authorized, because it provides the necessary information and justification for the change to the relevant stakeholders, such as the network administrator, the IT manager, and the department manager. The change request form also allows the stakeholders to review and approve or reject the change, or request more information or modifications. The change request form also serves as a record of the change history and status12.

Least privilege is the principle that is used to ensure users have the appropriate level of access to perform their job functions. Least privilege means granting users only the minimum amount of access rights and permissions they need to perform their tasks, and nothing more. Least privilege reduces the risk of unauthorized access, data leakage, malware infection, or accidental damage by limiting what users can do on the system or network.
Access control list, multifactor authentication, and mobile device management are not principles, but rather mechanisms or methods that can implement least privilege. Access control list is a list that specifies the users or groups that are allowed or denied access to a resource, such as a file, folder, or printer. Multifactor authentication is a method that requires users to provide two or more pieces of evidence to prove their identity, such as a password, a token, or a biometric factor. Mobile device management is a tool that allows managing and securing mobile devices, such as smartphones or tablets, that are used by employees to access corporate data or applications. References:
* Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 25
* [CompTIA Security+ SY0-601 Certification Study Guide], page 1003