System Analysis and Design
Which of the following statements is not true

None of these
at example of a hierarchical data structure is tree
a checksum digit is used for detecting Errors in data transmission
All of these
pointers are useful in traversing a linked list

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System Analysis and Design
Rapid prototyping proves the quality of a design by

having a data flow diagram
None of these
having a program simulate the real system
having the system analyst present an overview of the design to users, programmers, and consultants
both (a) and (b)

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System Analysis and Design
The approach used in top-down analysis and design is

to identify the top level functions by combining many smaller components into a single entity
to identify a top level function an d then create a hierarchy of lower-level modules and components.
to prepare flow charts after programming has been completed
all of the listed here

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