A data flow has ________ direction(s)of flow between symbols.It may flow in both directions between a process and a data store to show a read before an update.
A)No
B)Three
C)One
D)Multi

Question

Quizplus · Accepted Answer

Data flow in diagrams has one direction of flow between symbols, indicating the direction of data movement. The statement about flowing in both directions between a process and a data store to show a read before an update is achieved by using two separate arrows, each indicating a single direction of flow (one for read and another for update), not by having a bidirectional flow.

A Data Flow Has ________ Direction(s)of Flow Between Symbols