A file that includes an index directory to facilitate random access is__________________?
Correct answer: B. Indexed file
- A. Sequential file
- B. Indexed file
- C. Random file
- D. Serial file
Explanation
An indexed file contains an index that points to records, allowing the system to locate records directly instead of reading every preceding record. A sequential file must generally be read in order, so it does not provide the same random-access facility.
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