6) How SDLC differs from STLC?

SDLC
a) The main objective is to complete the successful development of the software including testing & other phases.
b) BA gathers the requirements.
c) Development team work on code and start developing software.
STLC
a) STLC Is Software Testing Life Cycle,
b) The only objective is Testing.
c) QA analyze requirement and identify scope of Testing.
d) Testing Team work Test cases.