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SDLC Interview Questions and Answers

Ques. Describe waterfall software development life cycle model.
Ans.

Waterfall is a sequential and non iterative SDLC model which describes flowing of phases downwards one by one. The process does not start a phase unless the previous phase is completed once and for all completely. The waterfall model consists of the following phases:

Requirements gathering
Design
Implementation
Testing
Maintenance 

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