FC0-U71 Software Development Concepts Practice Question
A software development team follows a methodology where work is divided into fixed sequential phases: requirements, design, implementation, testing, deployment, and maintenance. Changes to requirements are difficult once a phase is completed. Which development methodology is being used?
⚠ Common exam trap
CompTIA often tests the distinction between sequential (Waterfall) and iterative (Agile/Spiral) methodologies by emphasizing the inability to change requirements after a phase is completed, which directly points to Waterfall and not to the risk-driven cycles of Spiral or the adaptive nature of Agile frameworks.
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
✓
Waterfall
The Waterfall model is a linear sequential software development methodology where each phase (requirements, design, implementation, testing, deployment, maintenance) must be completed before the next begins. This rigidity makes it difficult to accommodate changes to requirements once a phase is finished, exactly as described in the question.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Spiral
Why it's wrong here
Spiral model combines iterative development with risk analysis, not strictly sequential.
- ✓
Waterfall
Why this is correct
Waterfall follows sequential phases and is suited for predictable projects.
- ✗
Scrum
Why it's wrong here
Scrum is an agile framework with sprints, not sequential phases.
- ✗
Agile
Why it's wrong here
Agile uses iterative cycles and adapts to changing requirements, not sequential phases.
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