JFE301Xuất hiện trong 1 đề thi
Which of the following is the appropriate statement concerning how to illustrate data flows (arrows) in DFD?
Các lựa chọn
AEach data store must be connected to another data store with at least one data flow.
BEach data store must have at least one data flow in and one data flow out.
CEach external entity must be connected to another external entity with at least one data flow.
DEach process must have at least one data flow in and one data flow out.