In ECET 2026, Software Engineering (SE) questions can help CSE students boost their overall technical score easily. Among all SE topics, SDLC (Software Development Life Cycle) is foundational. Understanding the stages of software development not only helps in real-world applications but also ensures success in multiple-choice questions. Let’s break down SDLC with clear notes, followed by 10 exam-focused MCQs and answers.
📘 Concept Notes – SDLC & Its Phases
💻 What is SDLC?
SDLC (Software Development Life Cycle) is a structured approach to design, develop, test, and maintain software. It defines the process used by developers and project managers to deliver high-quality software systems efficiently and on time.
📊 Phases of SDLC:
- Requirement Gathering & Analysis:
- Understand what the client needs.
- Document user expectations.
- Involves stakeholders, developers, and analysts.
- System Design:
- Convert requirements into architectural and detailed design.
- Includes UI design, database schema, system architecture.
- Implementation / Coding:
- Developers write code in the chosen programming language.
- Follows coding standards and design documents.
- Testing:
- Detect and fix bugs.
- Unit testing, integration testing, system testing.
- Deployment:
- Software is released to the user environment.
- Can be done in phases (pilot launch/full launch).
- Maintenance:
- Fixing bugs after deployment.
- Adding enhancements based on user feedback.
🔁 Popular SDLC Models:
- Waterfall Model – Linear, phase-by-phase
- Agile Model – Iterative and flexible
- V-Model – Verification and validation in parallel
- Spiral Model – Combines iterative development with risk analysis
🧠 Key Points:
- SDLC ensures structured and high-quality development.
- Saves time, cost, and reduces risk.
- Every project follows some form of SDLC.
🔟 10 Most Expected MCQs – ECET 2026 [SDLC & Phases]
Q1. What does SDLC stand for?
A) Software Design Logic Control
B) Software Development Life Cycle
C) System Design and Logical Coding
D) Software Data Life Compilation
Q2. Which is the first phase of SDLC?
A) Coding
B) Testing
C) Requirement Analysis
D) Deployment
Q3. Which SDLC phase involves writing actual code?
A) Design
B) Testing
C) Implementation
D) Maintenance
Q4. Which model follows a linear and sequential flow?
A) Agile
B) Spiral
C) Waterfall
D) RAD
Q5. In which SDLC phase are bugs fixed after deployment?
A) Maintenance
B) Testing
C) Design
D) Coding
Q6. Which model focuses on risk analysis and iterative refinement?
A) Agile
B) Spiral
C) Waterfall
D) V-Model
Q7. What is the main goal of testing phase?
A) Designing UI
B) Collecting Requirements
C) Fixing deployment issues
D) Finding and fixing bugs
Q8. In Agile methodology, software is developed in:
A) One single phase
B) Iterations or sprints
C) Waterfall cycles
D) Without planning
Q9. The document that contains software expectations is:
A) Codebase
B) Test Case
C) Requirement Specification
D) Deployment Report
Q10. What comes immediately after the Design phase?
A) Maintenance
B) Implementation
C) Testing
D) Requirement Gathering
✅ Answer Key Table
| Q.No | Answer |
|---|---|
| Q1 | B |
| Q2 | C |
| Q3 | C |
| Q4 | C |
| Q5 | A |
| Q6 | B |
| Q7 | D |
| Q8 | B |
| Q9 | C |
| Q10 | B |
🧠 Explanations of All Answers
- Q1 → B: SDLC stands for Software Development Life Cycle.
- Q2 → C: First phase is Requirement Gathering and Analysis.
- Q3 → C: Code is written during the Implementation phase.
- Q4 → C: Waterfall Model follows a linear phase-wise approach.
- Q5 → A: Maintenance includes bug fixes and updates post-deployment.
- Q6 → B: Spiral Model emphasizes risk analysis and iteration.
- Q7 → D: Testing is meant to identify and resolve bugs before release.
- Q8 → B: Agile uses short cycles called iterations or sprints.
- Q9 → C: SRS (Software Requirement Specification) contains expectations.
- Q10 → B: After Design, actual coding/implementation begins.
🎯 Why This Practice Matters for ECET 2026
Software Engineering is scoring and predictable in ECET 2026. SDLC is often asked with direct and easy questions, making it a high-return topic. Practicing these MCQs ensures you’re confident during the exam and don’t miss out on easy marks. This knowledge also helps in real-world projects and interviews.
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