The test that a computer needs to pass after a human's conversation with it and not be able to tell if it was a machine or a human is; Turing Test
The correct answer to the blank portion of the question is Turing test. This is because Turing Test is a test of a computer's ability to exhibit intelligent behavior that is equivalent to, or indistinguishable from, that of a human's behavior.
Finally, If the evaluator cannot reliably tell the computer from the human, the machine is said to have passed the test.
Read more about Test of Computer at; https://brainly.com/question/21283135