After nearly two months of studying and taking practice tests, I took and passed my AZ-104 exam to receive my Azure Adminstrator Associate certification. My primary tool for preparing for the AZ-104 exam was Microsoft Learn. I highly recommend taking practice tests for this exam. Many of the questions are detailed limits for Azure resources. I cannot emphasize enough that hands on experience with the base Azure solutions of storage, key vault, compute, recovery vault, monitor, subscriptions, and Azure policy is required for this exam.