4GL is an example of ______________ processing. A. White Box

4gl-is-an-example-of-processing-a-white-box

4GL is an example of ______________ processing.

A. White Box

B. Black Box

C. Functional

D. Both Black Box & Functional

I got this question in an online quiz.

This key question is from Fourth Generation Techniques topic in portion Software Processes, Models and Agile Software Development of Software Engineering

Right answer is D. Both Black Box & Functional

The best explanation: Functional processing/testing is also referred to as black box testing in which contents of the black box are not known.Almost anything might be referred to as a black box:an algorithm or the human mind.Functionality of the black box is understood in terms of its inputs and outputs.