You can pass AZ-104 and any exam, for that matter, if you study, learn and understand the concepts and practice sufficiently, that will help you ace the exam. First, understand the intent of the exam, its requirements, the skill sets measured, the pattern of the exam, the key areas to focus on, etc.
You can get all the information just by Googling it, but if you lack time for researching, I suggest you check out the Azure Course from Intellipaat, which will help you learn Azure for the role of Admin end-to-end hands-on. Also, check out the below video wherein a customer enrolled in this course and upskilled his profile successfully.