System Analysis and Design
Sequential organization

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

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

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

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