Microsoft Azure Architect Technologies (AZ-300) Practice Exam 2025 - Free AZ-300 Exam Questions and Study Guide

In asymmetric encryption, data is encrypted using a public key and can only be decrypted using a corresponding private key. The keys in asymmetric encryption are a pair: one is public and can be shared with anyone, while the other is private and must be kept secret.

The correct choice highlights that a different key is essential for decryption. In this case, it specifically refers to the private key that complements the public key used for encryption. When data is encrypted with the public key, it is designed to ensure that only someone with the corresponding private key can decrypt it, thereby maintaining confidentiality and security.

This mechanism allows users to share their public key widely while keeping the private key secure, ensuring that only authorized parties can access the encrypted information. Understanding this is fundamental to grasping how asymmetric encryption functions within the broader landscape of secure communications and data protection.