The Perl DBI is . . . . . . . .

Solution (By Examveda Team)

This question asks about the Perl DBI, which stands for Perl Database Interface.
Let's break down the options:
Option A: database inheritance - This refers to the ability of one database to inherit properties from another. This isn't related to the Perl DBI.
Option B: database integrity - This refers to the accuracy and consistency of data in a database. While the Perl DBI helps manage database interactions, it doesn't directly enforce integrity rules.
Option C: database interface - This is the correct answer! The Perl DBI provides a standard way for Perl programs to interact with various databases. It's an interface that allows you to use Perl code to work with databases like MySQL, PostgreSQL, Oracle, and more.
Option D: database isolation - This refers to the ability to perform transactions within a database without affecting other transactions. While database isolation is important, the Perl DBI itself doesn't directly implement it.
Therefore, the answer is Option C: database interface.