Which of the following is true with respect to layered architecture?
(a) Each layer is allowed to depend on the layer above it being present and correct
(b) A layer may call other layers above and below it, as long as it uses them
(c) All of the mentioned
(d) None of the mentioned
I got this question in a dream while sleeping
My question is based upon Layered Architectures in portion Visibility, Accessibility and Information Hiding of Software Architecture