Introduction
Software Development Life Cycle (SDLC) defines the structured process used to develop software applications. Interviewers often ask SDLC questions to evaluate understanding of development workflows and QA involvement.
Basic SDLC Interview Questions
1. What is SDLC?
SDLC is a process followed to design, develop, test, and deploy software.
2. What are SDLC phases?
Requirement Gathering, Design, Development, Testing, Deployment, and Maintenance.
3. Why is SDLC important?
It provides a structured approach to software development.
SDLC Phases Interview Questions
4. What happens in Requirement Gathering phase?
Business requirements are collected and documented.
5. What is Design phase?
System architecture and design documents are created.
6. What is Development phase?
Developers write and build application code.
7. What is Testing phase?
QA team verifies functionality and quality.
8. What is Deployment phase?
Application is released to production.
9. What is Maintenance phase?
Bug fixes and enhancements are implemented.
SDLC Models Interview Questions
10. What is Waterfall Model?
A sequential development model where each phase is completed before the next begins.
11. What is Agile Model?
An iterative development approach with continuous feedback.
12. Difference between Waterfall and Agile?
Waterfall is sequential, while Agile is iterative.
Scenario-Based SDLC Questions
13. Where does QA participate in SDLC?
QA participates from requirement analysis through testing and release.
14. What happens if requirements change?
Requirements are updated and testing scope is adjusted.
15. How does SDLC support quality?
By defining clear processes and validation steps.
Frequently Asked Questions
Is SDLC important for QA interviews?
Yes, SDLC is a fundamental concept in software testing interviews.
Which SDLC model is most used today?
Agile is widely used in modern software development.