When we find an employee by the Social Security number and do not need to read the entire employee file but, instead, can process the records in the index file, find the entry with the right number, take the "key" to the full record, and retrieve it quickly, we are using ________.
A) direct access
B) fast access
C) indexed sequential access
D) DBMS

Question

Quizplus · Accepted Answer

This describes indexed sequential access, where an index is used to quickly locate data without having to search every item in a dataset sequentially. This method combines the benefits of sequential access (reading data in order) with the ability to skip directly to the desired data using an index.

When We Find an Employee by the Social Security Number