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26. 

When desk-checking an algorithm, you should set up a table that contains _____.
A. One column for each input item
B. One column for each output item
C. One column for each processing item
D. Both a and b
E. a, b, and c
27. 

Data dictionary contains detail of
A. data structures
B. data flows
C. data stores
D. All of the above
E. None of the above
28. 

Which of the following statements is true
A. as parallel run involves two different terminals accessing a common database
B. computers are essential for systems Analysis
C. Flow of information in an organization is always vertical
D. alpha testing is the verification process a system goes through for the first time
E. None of the above
29. 

A self check digit is useful in detecting
A. transcription errors only
B. transposition errors only
C. Random errors only
D. All of the above
E. None of the above
30. 

Advantages of Relational Database Management systems are
A. Flexibility, of relating different logical files
B. Security controls can be more easily implemented.
C. Data independence since it allows the database to grow by adding new attributes and relations.
D. All of the above
E. None of the above