Prepare with 50 SDLC and traditional process model MCQs with answers and explanations. This set focuses on SDLC phases, implementation strategies, lifecycle selection, stable requirements, Build-and-Fix, Big Bang, Waterfall, and the V-Model. It is organised for university assessments, competitive exams, and software engineering interviews.
Traditional lifecycle models remain important because they explain phase sequencing, formal approvals, documentation, verification, and controlled delivery. They are especially relevant when requirements are stable or regulation requires strong evidence and traceability.
Want to test yourself? Select one answer for each question and avoid opening the optional answer explanations while you play. When you reach the end, tap “See Answers & My Score” to reveal all correct answers, explanations, and your final result automatically.
- ✔ SDLC meaning and phase sequence
- ✔ Analysis, design and implementation
- ✔ Deployment and conversion strategies
- ✔ Lifecycle selection criteria
- ✔ Build-and-Fix and Big Bang
- ✔ Waterfall strengths and limitations
- ✔ V-Model test-level pairing
- ✔ Formal reviews and approvals
- 1. SDLC Fundamentals and Phase Sequence MCQs (Q1–10)
- 2. Implementation and Deployment Strategies MCQs (Q11–20)
- 3. Lifecycle Selection and Stable Requirements MCQs (Q21–30)
- 4. Build-and-Fix, Big Bang and Waterfall MCQs (Q31–40)
- 5. V-Model, Reviews and Controlled Development MCQs (Q41–50)
- Frequently Asked Questions
1. SDLC Fundamentals and Phase Sequence MCQs (Q1–10)
SDLC FUNDAMENTALS AND PHASE SEQUENCEReview ten focused questions on sdlc fundamentals and phase sequence, then open each answer to check the reasoning.
1. SDLC stands for _____?
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Correct Answer: D — Software Development Life Cycle. SDLC is the standard industry term used to describe the entire process of planning, creating, testing, and deploying an information system.
2. The 2nd step in SDLC is _____?
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Correct Answer: B — Feasibility study. Once the initial investigation is done, a feasibility study is conducted to determine if the project is technically and financially viable.
3. The first step in software development life cycle is _____?
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Correct Answer: C — Preliminary investigation and Analysis. Before any work begins, you must first identify the problem and conduct an initial analysis to see if the project is worth pursuing.
4. The 3rd step in software development life cycle (SDLC) is _____?
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Correct Answer: C — System Design. After the requirements are analyzed and feasibility is confirmed, the next logical step is to create the architectural design of the system.
5. What is normally produced at the end of the system analysis activity?
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Correct Answer: D — Write system analysis report. Once the analysis is complete, the findings must be documented in a formal report for stakeholders to approve.
6. A documented life cycle model helps to identify _____ in development process.
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Correct Answer: D — All of the above. Having a clear roadmap helps teams spot missing steps, conflicting requirements, or unnecessary repeated tasks early on.
7. A descriptive and diagrammatic representation of software life cycle is called _____?
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Correct Answer: A — Software life cycle model. A lifecycle model (like Waterfall or Agile) provides a visual and conceptual framework for how the development process should flow.
8. Which one of the following is not a phase of SDLC?
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Correct Answer: B — Problem identification. While identifying a problem triggers the need for SDLC, it is generally considered a pre-SDLC activity or part of the initial Analysis phase.
9. Which of the following is a true statement regarding the SDLC phases?
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Correct Answer: A — The life cycle may be thought of a circular process. SDLC is often circular because once a system is deployed, maintenance leads back to new requirements and a new cycle begins.
10. In the first phase of the SDLC, which of the following aspects are usually analyzed?
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Correct Answer: D — All of the above. Analysts must understand what data goes in, what information comes out, and how the data is protected and managed.
2. Implementation and Deployment Strategies MCQs (Q11–20)
IMPLEMENTATION AND DEPLOYMENT STRATEGIESReview ten focused questions on implementation and deployment strategies, then open each answer to check the reasoning.
11. Which activities may be used during system implementation?
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Correct Answer: D — All of the above. Implementation may include checking the system, introducing it through a pilot site, or running old and new systems in parallel.
12. System implementation phase entails _____?
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Correct Answer: D — All of these. Implementation includes various ways of rolling out the system, such as running the old and new systems side-by-side (parallel).
13. Which phase immediately follows the System Design phase?
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Correct Answer: C — Coding / Implementation. Once the blueprint (design) is ready, developers begin writing the code to implement that design.
14. Running the old and new systems simultaneously for a period of time is called _____?
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Correct Answer: B — Parallel Conversion. Parallel conversion is the safest method because if the new system fails, the old one is still operating as a backup.
15. In "Phased Conversion", the system is implemented _____?
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Correct Answer: B — In stages or modules. Phased conversion introduces parts of the new system gradually, allowing users to adjust to changes slowly.
16. Which implementation strategy involves rolling out the system to a small group of users first?
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Correct Answer: B — Pilot Conversion. A pilot conversion tests the system in one branch or department before rolling it out to the entire organization.
17. Which deployment method involves completely stopping the old system and starting the new one immediately?
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Correct Answer: B — Direct Cutover (Plunge). Direct cutover is the riskiest method because if the new system fails, there is no old system running to fall back on.
18. The linear sequential model of software development is _____?
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Correct Answer: A — A reasonable approach when requirements are well defined. The linear sequential model works best when requirements are stable, complete, and understood before development starts. It is less suitable when frequent change is expected.
19. What is the defining feature of the V-Model?
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Correct Answer: A — Each development stage is paired with a corresponding testing activity. The V-Model links development activities with related verification and validation activities. For example, system requirements are connected to system testing.
20. Which of the following is not included in waterfall model?
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Correct Answer: C — Risk analysis. Risk analysis best describes the Waterfall model, which organises major development activities in a largely sequential flow.
3. Lifecycle Selection and Stable Requirements MCQs (Q21–30)
LIFECYCLE SELECTION AND STABLE REQUIREMENTSReview ten focused questions on lifecycle selection and stable requirements, then open each answer to check the reasoning.
21. During the "Coding" or Development phase, what is the primary focus of the engineering team?
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Correct Answer: B — Converting design specifications into executable source code. This is the "construction" stage where developers use programming languages to build the actual software components defined in the design phase.
22. A systematic approach to software development, as epitomized by the various life-cycle models, is useful in _____?
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Correct Answer: C — Managing the various activities necessary to get the job done. A lifecycle model helps teams organise, coordinate, and control the many activities needed to deliver software. Its main value is practical project management, not appearance or documentation for its own sake.
23. Select the term that best fits the following definition: Requirements that are well understood and unlikely to change significantly.
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Correct Answer: D — Stable requirements. Requirements that are well understood and unlikely to change significantly.
24. Which process model is also called as classic life cycle model?
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Correct Answer: D — Waterfall model. A lifecycle model provides a conceptual and often diagrammatic view of the activities and flow used to develop software.
25. In choosing a system development life cycle model, one would consider the _____?
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Correct Answer: A — Development group expertise, Problem characteristics, User expectations. A lifecycle model provides a conceptual and often diagrammatic view of the activities and flow used to develop software.
26. Which software engineering concept is described here: Choosing a lifecycle based on risk, requirement stability, team capability, regulation, and delivery needs.
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Correct Answer: C — Model selection. Choosing a lifecycle based on risk, requirement stability, team capability, regulation, and delivery needs.
27. Consider this situation: A manager compares project uncertainty, user access, deadline pressure, and technical risk before selecting a process. What is being applied?
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Correct Answer: D — Model selection. This is model selection because the lifecycle is being matched to project conditions.
28. A project team reports the following: A payroll calculation is fully defined by an established policy that will remain in force for years. Which concept is illustrated?
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Correct Answer: A — Stable requirements. Stable requirements make a sequential model easier to plan because major changes are unlikely.
29. A late requirement change forces updates to design, code, tests, and documentation. Which concept best fits this situation?
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Correct Answer: A — Sequential rework cost. This illustrates sequential rework cost because one late change affects several completed stages.
30. Which one of the following models is not suitable for accommodating changes?
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Correct Answer: C — Waterfall Model. Waterfall is least able to accommodate late changes because work proceeds through largely sequential, approved phases. Prototyping, RAD, and Spiral are designed for more feedback and revision.
4. Build-and-Fix, Big Bang and Waterfall MCQs (Q31–40)
BUILD-AND-FIX, BIG BANG AND WATERFALLReview ten focused questions on build-and-fix, big bang and waterfall, then open each answer to check the reasoning.
31. The Waterfall model is most suitable when _____?
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Correct Answer: A — Requirements are stable and clearly understood. Waterfall works best when the scope is well defined and major changes are unlikely. Its sequential structure becomes difficult to manage when requirements are uncertain.
32. The major shortcoming of waterfall model is _____?
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Correct Answer: A — The difficulty in accommodating changes after requirement analysis. The Waterfall model follows a largely sequential flow, so changes become costly once requirements have been approved and later phases have started.
33. Which term best matches this description: An informal approach in which code is written and repeatedly repaired without a defined process.
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Correct Answer: D — Build-and-Fix Model. An informal approach in which code is written and repeatedly repaired without a defined process.
34. A student starts coding immediately, fixes errors as they appear, and has no requirements or design document. Which concept best fits this situation?
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Correct Answer: C — Build-and-Fix Model. This is Build-and-Fix because development proceeds through ad hoc coding and repair.
35. For a well understood data processing application it is best to use _____?
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Correct Answer: B — Waterfall model. Waterfall model is the option that best matches the standard software engineering definition used in this context.
36. Which software engineering concept is described here: A model with minimal formal planning in which resources are combined to produce a result.
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Correct Answer: A — Big Bang Model. A model with minimal formal planning in which resources are combined to produce a result.
37. Consider this situation: A small research prototype is built with unclear requirements and no defined phase sequence. What is being applied?
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Correct Answer: A — Big Bang Model. This is Big Bang development because the work relies on experimentation rather than a structured lifecycle.
38. Which of the following statements regarding Build & Fix Model is wrong?
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Correct Answer: A — It scales up well to large projects. Build-and-Fix does not scale well because it lacks disciplined requirements, design, and planning. As the code grows, changes become risky and maintenance becomes difficult.
39. Match each software lifecycle model in List I to its description in List II:
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Correct Answer: A — e, b, a, c, d. Code-and-Fix matches ad hoc coding; evolutionary prototyping evolves an initial version; Spiral is risk-driven; staged delivery uses planned releases; and Waterfall follows standard phases in sequence.
40. Which software engineering term best matches this description: a minimal-process approach in which development begins with little formal planning and the result emerges from available effort and resources.
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Correct Answer: C — Big Bang model. A minimal-process approach in which development begins with little formal planning and the result emerges from available effort and resources.
5. V-Model, Reviews and Controlled Development MCQs (Q41–50)
V-MODEL, REVIEWS AND CONTROLLED DEVELOPMENTReview ten focused questions on v-model, reviews and controlled development, then open each answer to check the reasoning.
41. A largely sequential model in which major phases are completed in order. This is known as _____?
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Correct Answer: B — Waterfall Model. A largely sequential model in which major phases are completed in order.
42. Which term best matches this description: The increasing cost of changing earlier decisions after later phases have begun.
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Correct Answer: A — Sequential rework cost. The increasing cost of changing earlier decisions after later phases have begun.
43. A contract requires requirements approval before design, and design approval before coding. Which term most accurately describes it?
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Correct Answer: B — Waterfall Model. This is Waterfall because the project progresses through controlled sequential stages.
44. Select the term that best fits the following definition: A sequential model that pairs development activities with corresponding test levels.
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Correct Answer: C — V-Model. A sequential model that pairs development activities with corresponding test levels.
45. Which is an important advantage of the V-Model over a simple Waterfall description?
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Correct Answer: A — Testing activities are planned alongside corresponding development stages. The V-Model makes verification and validation explicit by linking each development stage with a related test level.
46. The design cannot begin until stakeholders approve the requirements package. Which term most accurately describes it?
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Correct Answer: D — Phase gate. This is a phase gate because progress depends on formal completion and approval of the current stage.
47. A project team reports the following: Acceptance tests are planned from business requirements, while unit tests are planned from detailed design. Which concept is illustrated?
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Correct Answer: B — V-Model. This is the V-Model because verification stages are linked to related validation activities.
48. A formal review point at which approval is required before moving to the next stage. This is known as _____?
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Correct Answer: B — Phase gate. A formal review point at which approval is required before moving to the next stage.
49. Which software engineering concept is described here: Development that requires documented evidence, reviews, traceability, and controlled approvals.
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Correct Answer: B — Regulated development. Development that requires documented evidence, reviews, traceability, and controlled approvals.
50. Acceptance testing is planned from business requirements and unit testing from detailed design. Which concept is being applied?
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Correct Answer: B — V-Model verification and validation pairing. The left side refines requirements and design while the right side contains corresponding test levels.
💬 How many did you get right? Share your score in the comments and mention the topic you want to practise next.
- Set 6: SRS, Validation and Requirements Management
- Set 8: Evolutionary and Rapid Development Models
- Set 1: Introduction to Software Engineering
- Set 2: Software Engineering Principles and Practices
- Set 3: Software Processes and Framework Activities
- Set 4: Requirements Engineering Fundamentals
- Set 5: Requirements Elicitation and Analysis
Frequently Asked Questions
Which models are covered in Set 7?▾
The set covers SDLC phases, Build-and-Fix, Big Bang, Waterfall, and the V-Model, together with lifecycle selection and deployment strategies.
When is Waterfall most suitable?▾
Waterfall is most suitable when requirements are stable, well understood, formally approved, and unlikely to change significantly.
What is the main limitation of Waterfall?▾
Its sequential commitments make late requirement changes expensive because earlier specifications, design, code, tests, and documents may all need revision.
How is the V-Model different from a simple Waterfall view?▾
The V-Model explicitly pairs development and specification activities with corresponding verification and validation test levels.
What is direct cutover?▾
Direct cutover stops the old system and starts the new one at a chosen point. It is fast but has higher operational risk than parallel conversion.
Why does lifecycle selection matter?▾
The selected lifecycle should fit requirement stability, risk, regulation, user access, team capability, system criticality, schedule, and delivery needs.
This article is an independently created educational resource for software engineering practice. Questions are based on established software engineering concepts and have been rewritten for learning and exam preparation. The page is not affiliated with or endorsed by any university, examination board, certification provider, IEEE, ACM, ISO, NASA, or textbook publisher.
