What are SDLC phases? Waterfall vs Agile one-liner each.

SDLC phases

For What are SDLC phases? Waterfall vs Agile one-liner each., interviewers listen for a crisp definition, how the pieces interact in a real system, and one trade-off or failure mode you have seen or would guard against.

• Waterfall: sequential requirements→design→build→test→deploy—predictable, slow feedback.
• Agile: iterative increments, working software every sprint.
• Phases still exist in Agile—just shorter loops.