Certified Information Systems Security Professional (CISSP) Practice Exam 2025 – All-in-One Guide to Mastering Your Certification!

A "read" operation in data handling is defined as an action that retrieves data from a database or data source without allowing any modifications to the data being accessed. This means that when a read operation takes place, the integrity of the data remains intact since it does not involve changing or altering the data in any way. The operation provides a way for users or applications to access and utilize the data as needed while ensuring that the original data remains unchanged.

In the context of data processing, understanding read operations is crucial because it differentiates between various kinds of operations performed on data. While it is essential to retrieve information effectively, other operations like modifying, compressing, or encrypting serve different purposes that do not relate to the fundamental goal of a read operation. Hence, the focus on retrieval without modification clearly defines what a read operation is intended to accomplish.