220-1101 Question 351
Single answerPurpose of virtual machinesA small business plans to deploy a new accounting application, but the IT technician is concerned that the software may conflict with existing programs on the office manager's Windows 11 PC. The manager also needs to continue using their current applications without interruption. Which solution BEST allows the technician to safely test and run the new software while minimizing risk to the existing system?
- A
Install the accounting application directly on the Windows 11 PC and create a restore point first
- B
Create a virtual machine on the Windows 11 PC and install the accounting application inside the VM
- C
Dual-boot the PC with a second copy of Windows and install the accounting application there
- D
Replace the current hard drive with a larger one and install the accounting application on the new drive
Show answer and explanation
Correct answer: B
Explanation
The correct answer is to create a virtual machine and install the accounting application inside it. In real-world support environments, virtual machines are commonly used to test new software, run applications in isolated environments, and avoid impacting a production workstation. This is especially useful when compatibility is uncertain or when the user must continue working without disrupting the main operating system. Best practices from virtualization platforms such as Microsoft Hyper-V, Oracle VM VirtualBox, and VMware emphasize isolation, portability, and safe testing as core benefits of VMs. Compared with restore points, dual-booting, or hardware replacement, a VM most directly addresses the need for risk reduction, compatibility testing, and continued access to existing applications.
- A. Incorrect.
Creating a restore point provides limited rollback capability for certain system changes, but it does not isolate the application from the host operating system. If the application causes conflicts, performance issues, or requires different configurations, the main system could still be affected. This is a plausible choice because restore points are commonly used before software installation, but it does not best meet the requirement to minimize risk while preserving uninterrupted use of current applications.
- B. Correct.
A virtual machine is the best choice because it allows the technician to install and test the accounting application in an isolated environment without directly affecting the host Windows 11 installation. The office manager can continue using existing applications on the host system while the new software is evaluated in the VM. This matches a primary purpose of virtual machines in A+ Core 1: safely running another operating system or software environment for testing, compatibility, and isolation.
- C. Incorrect.
Dual-booting can separate environments, but it requires restarting the computer to switch between operating systems. That does not allow the office manager to continue using current applications without interruption while testing the new software. This option is plausible because it does provide separation, but it is less practical than virtualization for simultaneous access and quick testing.
- D. Incorrect.
Replacing the hard drive or adding storage capacity does not address software compatibility or isolation. More storage may help with capacity issues, but it does not reduce the risk of application conflicts with the current operating system and installed software. Someone might choose this if they incorrectly assume the issue is related to disk space rather than application testing and containment.