System Analysis and Design
The systems conversion technique of totally removing the existing system and immediately implementing the new system is called as

crash conversion
phased conversion
None of these
parallel run
pilot conversion

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System Analysis and Design
In Decision trees

nodes represent the conditions, with the right side of tree listing the actions to be taken
the branch depends on the condition and decisions to made
the root is drawn on the left and is the starting point on the decision sequence.
None of these
All of these

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System Analysis and Design
Indexed-Sequential organization

stores records sequentially but uses an index to locate records
uses an index for each key type
has records placed randomly throughout the file
means storing records in contiguous blocks according to a key

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