System Analysis and Design
Inverted list organization

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

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System Analysis and Design
The advantage of Purchase Option is (are)

the flexibility of modifying the system at will
All of these
Insurances, maintenance, and other expenses are included in the rental charge
None of these
No financing is requird. The risk of system obsolescence is shifted to the lessor

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