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Understanding Exchange Online Versions: A Guide

Understanding the Differences Between Exchange Online PowerShell Modules
Introduction
As a Cloud Architect, it’s important to understand the differences between Exchange Online PowerShell modules to effectively manage your cloud environment. This article will cover the basics of Exchange Online PowerShell to help you make informed decisions about which modules to use.

What is Exchange Online PowerShell?
Exchange Online PowerShell is a Windows PowerShell module that enables administrators to manage their organization’s Exchange Online environment. With Exchange Online PowerShell, you can:

* Manage mailboxes and mailbox settings
* Create and manage distribution groups
* Manage Exchange Online licenses
* Manage Exchange Online permissions
* Create and manage mobile device policies

What Versions of Exchange Online PowerShell Are Available?
There are two versions of Exchange Online PowerShell: the classic version and the modern version.

Classic Version
The classic version of Exchange Online PowerShell is based on Windows PowerShell 2.0 and is used to manage Exchange Online in an on-premises environment.

Modern Version
The modern version of Exchange Online PowerShell is based on Windows PowerShell 5.1 and is used to manage Exchange Online in a cloud environment.

What Are the Differences Between the Two Versions?
The two versions of Exchange Online PowerShell are different in terms of authentication, command syntax, and performance.

Authentication
The classic version of Exchange Online PowerShell uses basic authentication to connect to Exchange Online. The modern version of Exchange Online PowerShell uses modern authentication, which is more secure than basic authentication.

Command Syntax
The command syntax for the classic version of Exchange Online PowerShell is based on Windows PowerShell 2.0. The command syntax for the modern version of Exchange Online PowerShell is based on Windows PowerShell 5.1.

Performance
The classic version of Exchange Online PowerShell is slower than the modern version. The modern version of Exchange Online PowerShell is faster and more efficient.

Conclusion
Choosing the right version of Exchange Online PowerShell is important for managing your Exchange Online environment. The classic version is suitable for on-premises environments, while the modern version is more suitable for cloud environments. It is important to understand the differences between the two versions and choose the version that best fits your needs.
References:
Understanding the Different Versions of Exchange Online PowerShell Modules and Basic Auth

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