21. Which of the following is not a requirement of structured design?
22. The Data flow diagram (DFD) shows;
23. In data-flow diagrams, an originator or receiver of the data is usually designated by
24. A data flow diagram is
25. Environment in systems parlance refers to
26. When desk-checking an algorithm, you should set up a table that contains _____.
27. Data dictionary contains detail of
28. Which of the following statements is true
29. A self check digit is useful in detecting
30. Advantages of Relational Database Management systems are
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