being an administratori am thinking of learning cloud infrastructure

Hey there, Manjot Kaur

I would recommend browsing available learning paths on Microsoft Learn on the type of training you wish to do. I have found an introduction to cloud infrastructure: Describe cloud concepts here: https://learn.microsoft.com/en-gb/training/paths/microsoft-azure-fundamentals-describe-cloud-concepts/

This is part one out of four, with the final part which is applying azure skills in guided projects. With this training modules, it is best to have an Azure subscription where you can apply your skills on the tenant, through the portal here: https://portal.azure.com/#home

I would just be carful with costs as some resources on Azure do incur a cost. If you have a free trial subscription, you should be able to use your credit provided for this. However, if you have a pay-as-you-go subscription, setting up budgets and alerts for what you are spending is a good start to manage the costs that you will incur. For more information on budgets and cost alerts, please see this article: https://learn.microsoft.com/en-us/azure/cost-management-billing/costs/tutorial-acm-create-budgets

Hope this helps,
Nathan