22. A company uses vital legacy software that does not run in the current OS version. Which of the following will best support the software while keeping the OS current?
Answer: D
Application virtualization will best support the software while keeping the OS current.
Application virtualization allows legacy software to run in a contained environment, separate from the underlying operating system. This means that the company can keep its operating system up to date while still being able to utilize vital legacy software.
A) Shared resources
Shared resources refer to the allocation of system resources across multiple applications or users. While this can enhance efficiency, it does not specifically address the compatibility issues of legacy software with a current operating system.
B) System restore
System restore is a feature that allows users to revert their system to a previous state. However, this does not help in running legacy software on a new OS since it does not create an environment for the software to function correctly alongside modern applications.
C) Test development
Test development involves creating and refining new software or applications. This option does not provide a solution for running existing legacy software on a current operating system, as it focuses on new software rather than supporting old applications.
D) Application virtualization
Application virtualization encapsulates legacy software in a virtual environment. This allows the software to operate as if it were on an older OS, thereby ensuring compatibility while the host operating system remains current and updated.
Conclusion
Application virtualization is the only option that effectively resolves the issue of running legacy software on a modern operating system without compromising system updates. All other options fail to provide a direct solution to the compatibility challenge posed by legacy software, making application virtualization the ideal choice.