hardMultiple ChoiceObjective-mapped
FC0-U71 Practice Question: A company uses a legacy application that only…
A company uses a legacy application that only runs on Windows 7. The IT department plans to upgrade to Windows 10. What is the best approach to ensure compatibility?
⚠ Common exam trap
Candidates often assume a virtual machine is always the safest choice, but the question asks for the 'best approach' in terms of simplicity and cost, making compatibility mode the correct answer over the more resource-intensive VM solution.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Windows 10 compatibility mode for the application.
Windows 10 compatibility mode allows the legacy application to run by emulating the environment of Windows 7, including specific service packs and settings. This is the best approach because it requires no additional hardware or software costs and preserves the existing application functionality without modification. Compatibility mode works by intercepting API calls and presenting the expected Windows 7 behavior to the application.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use Windows 10 compatibility mode for the application.
Why this is correct
Compatibility mode allows the app to run as if on an older OS.
- ✗
Replace the legacy application with a modern equivalent.
Why it's wrong here
Replacing the legacy application with a modern equivalent does not address the requirement to run the existing software on Windows 10; the stem explicitly states the application only runs on Windows 7, so a replacement would change the application itself rather than solving the compatibility problem. This option is tempting because replacing outdated software is a standard long-term strategy for eliminating dependency on obsolete operating systems, and it would be correct if the goal were to modernise the application stack rather than preserve the original legacy application.
- ✗
Run the application in a virtual machine with Windows 7.
Why it's wrong here
Running the application in a Windows 7 virtual machine preserves the legacy OS environment, but this fails the company’s stated upgrade goal: the IT department plans to upgrade *to Windows 10* as the host OS, not merely to keep the application running. The correct approach must allow the application to function natively on Windows 10, typically via compatibility mode or shims, rather than requiring a separate virtualised OS. This option is tempting because virtualisation is a standard solution for running incompatible legacy software on a modern host, and it would be correct if the requirement were simply to continue using the application without upgrading the host OS.
- ✗
Install the application directly on Windows 10 without changes.
Why it's wrong here
Direct installation may fail due to OS differences.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.