Question

Which of the following statements are TRUE?
1. The context diagram should depict the system as a single bubble.
II. External entities should be identified clearly at all levels of DFDs.
III. Control information should not be represented in a DFD.
IV. A data store can be connected wither to another data store or to an external entity,

Answer 1

Answer:

option D is the correct answer. I hope it helps you.