Final answer:
Azure Cloud Shell is preferred for its ability to be used in a web browser across devices, offering flexible access to Azure resources without requiring local installation unlike Azure CLI and PowerShell, which are not deprecated and also not just for beginners.
Step-by-step explanation:
The primary reason to use Azure Cloud Shell over Azure CLI or PowerShell is that the Cloud Shell can be used entirely in a web browser and across multiple devices. This convenience allows for easy access and management of your Azure resources from any location. Unlike the Cloud Shell, Azure CLI and PowerShell require installation on a local machine, which can limit their accessibility compared to the browser-based approach of the Cloud Shell.
It is not correct to say that Azure CLI and PowerShell are more suitable for beginners. In fact, both the Azure CLI and PowerShell are powerful tools that can be used by administrators with varying levels of expertise. The Cloud Shell itself includes both the Azure CLI and PowerShell, giving users the flexibility to choose the environment they are more comfortable with or that is better suited to the task at hand.
Furthermore, the statement that the Cloud Shell is exclusively for mobile devices is inaccurate. While the Cloud Shell is indeed accessible from mobile browsers, it is also fully functional on desktop browsers, providing an integrated command-line experience regardless of device type.
Lastly, neither Azure CLI nor PowerShell has been deprecated. Both are actively maintained and continue to be essential tools for managing Azure resources.