The trial test of a computer or software before the commercial launch is called:

Correct option is B

The correct answer is (b) Beta test.
· A beta test refers to the trial test of a computer software or system conducted before its commercial launch.
· Beta testing is typically done after the alpha testing real users who test the software in a real-world environment to identify any bugs, usability issues, or performance phase, and it involves problems that were not detected during internal testing.
· Beta tests are crucial for ensuring that the software functions correctly across various environments and user conditions before it is officially released to the public.
· The feedback from beta testing is crucial for final adjustments and ensuring a successful commercial launch.
· Beta testing may be open (available to the public) or closed (limited to specific users).
Additional Knowledge:
· Alpha test: The first phase of testing, conducted internally to catch major bugs.
· Delta test: Not a common term in software testing.
· e-test: Refers to electronic testing, not specific to software trials.