Microsoft Azure Architect Technologies (AZ-300) Practice Exam 2026 - Free AZ-300 Exam Questions and Study Guide

The primary purpose of encryption is to make data unreadable and unusable to unauthorized users. By transforming plaintext data into an unreadable format, encryption ensures that even if data is intercepted or accessed without permission, it remains secure and cannot be understood or utilized without the proper decryption key. This process is fundamental in protecting sensitive information such as personal data, financial records, and confidential business information from unauthorized access and potential misuse.

While there are other techniques and tools in data management that can improve performance, reduce data size, or increase access speed, these do not align with the fundamental objective of encryption. Encryption is specifically focused on creating a layer of security, rather than on enhancing performance or efficiency.