FC0-U71 Software Development Concepts Practice Question
During the SDLC, testing is performed at different levels. Which TWO of the following are recognized levels of testing? (Select TWO.)
⚠ Common exam trap
FC0-U71 often tests whether candidates confuse SDLC phases (planning, design, development, testing, deployment, maintenance) with testing levels (unit, integration, system, acceptance), causing them to select 'maintenance' or 'deployment' as testing types.
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
✓
Integration testing
Integration testing (C) is a recognized level of testing in the SDLC, sitting between unit and system testing, where individual modules are combined and tested as a group to verify interfaces and interactions between components. Unit testing (D) is also a recognized level, focusing on verifying the smallest testable parts of an application, such as individual functions or methods, in isolation. These two are standard levels in the classic testing hierarchy (unit, integration, system, acceptance). Maintenance (A) is an SDLC phase that follows deployment, not a testing level. Code review (B) is a static verification technique or peer-review activity, not a defined test level. Deployment (E) is a release/implementation phase, not a testing level.
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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Maintenance
Why it's wrong here
Maintenance is an SDLC phase occurring after deployment, not a testing level; testing levels are defined by scope, from unit through acceptance. It is tempting because regression testing happens during maintenance, and would be correct if the question asked which phase follows implementation.
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Code review
Why it's wrong here
Code review is a static inspection activity performed by peers, not a level of testing such as unit, integration, system or acceptance. It is tempting because it finds defects early in the SDLC, and would be correct if the question asked about verification techniques rather than testing levels.
- ✓
Integration testing
Why this is correct
Integration testing is a recognised SDLC test level: it verifies that individually tested modules interact correctly through their interfaces and data flows. This satisfies the stem's requirement for a distinct level, sitting between unit testing and system testing in the conventional hierarchy.
- ✓
Unit testing
Why this is correct
Unit testing is a recognised SDLC test level: it exercises individual components or functions in isolation, typically by developers, to verify each smallest testable piece behaves as designed. This satisfies the stem's requirement for a distinct level, forming the base of the testing hierarchy.
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Deployment
Why it's wrong here
Deployment is the SDLC phase that releases software into production, not a testing level defined by scope. It is tempting because acceptance testing often precedes it, and would be correct if the question asked which phase follows system testing in the lifecycle.
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Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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