In general, there are numerous free trainings available for Microsoft Azure. But most of them didn’t fulfill the learners' expectations. Among all of them I felt this is the best free training -
This video has covered all the concepts in a systematic way, along with hands-on labs and some interview questions. Upon watching and learning from this video, one can get again confidence that they can understand and perform tasks in Azure.
If you want to become a certified professional in this field, I would recommend that you take up Microsoft Azure training from Intellipaat. Grab this opportunity to learn from subject matter experts and industry experts during your training.