FC0-U71 Applications and Software Practice Question
Which of the following best describes a web application?
⚠ Common exam trap
FC0-U71 often tests the definition of a web application versus mobile or desktop applications. Candidates may confuse web apps with API-based services or mobile apps, but the key is that it runs in a browser and processes data on a server.
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
✓
An application that runs within a web browser and processes data on a server
A web application is defined as an application that runs within a web browser and processes data on a server. This matches option C. The client-side runs in the browser, and server-side logic handles data processing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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An application that runs only on mobile devices
Why it's wrong here
A web application is delivered over HTTP/HTTPS and accessed through a browser, so restricting it to mobile devices describes a native mobile app instead. It is tempting because many web apps are consumed on phones, yet browser-based delivery across any platform is the defining characteristic.
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An application installed locally that has direct hardware access
Why it's wrong here
Local installation with direct hardware access describes a native desktop application, which runs against the operating system's APIs rather than being delivered over HTTP and rendered by a browser. A web application is accessed via a browser over a network. This option would fit a compiled program needing device drivers or filesystem privileges.
- ✓
An application that runs within a web browser and processes data on a server
Why this is correct
A web application executes its interface inside a browser while business logic and data processing occur on a remote server, satisfying both halves of the stem's definition. This client–server split distinguishes it from native desktop software, which processes locally, and from static websites, which serve content without server-side processing.
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An application that connects services using APIs
Why it's wrong here
API connectivity describes service-to-service integration or a microservices architecture, not the defining characteristic of a web application, which is browser-delivered content over HTTP. Many web applications call APIs, but that is incidental. This option would suit a question about how distributed systems or middleware components communicate.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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