System Analysis and Design – Section 4

21. The processes at the most detailed level of the data flow diagrams are called

A. transform descriptions
B. functional primitives
C. data flows
D. interfaces
E. None of the above

Correct Answer: B. functional primitives

22. A pseudocode is

A. a protocol used in data communication
B. an easy way to communicate the logic of a program, in English¬like statements
C. a computer generated random number
D. a machine code
E. None of the above

Correct Answer: B. an easy way to communicate the logic of a program, in English¬like statements

23. Which of the following is not true of the conversion phase of the development life cycle?

A. the user and systems personnel must work closely together
B. steps must be taken to phase out the old system
C. documentation should be emphasized
D. the non machine components of the system should be considered
E. None of the above

Correct Answer: C. documentation should be emphasized

24. Which of the following way(s) the information system and capability are related to each other:

A. improved processing speed
B. increased volume of activities
C. faster retrieval of information
D. All of the above
E. None of the above

Correct Answer: D. All of the above

25. Inverted list organization

A. means storing records in contiguous blocks according to a key.
B. Stores records sequentially but uses an index to locate records
C. uses an index for each key type
D. has records placed randomly throughout the file
E. None of the above

Correct Answer: C. uses an index for each key type

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