System Analysis and Design
The records in a file on magnetic tape

None of these
cannot be transformed to a disk file
can only be accessed serially
have to be arranged in a key sequence
are meant for backup

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System Analysis and Design
Direct-access organization

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

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