Microsoft Azure Administrator Exam

I am interested in applying for the AZ-104 Microsoft Azure Administrator Exam. Before attempting the exam, I want to take a practice test through the Microsoft Certification Exam Prep Portal. However, I noticed that there isn't a practice test available for the AZ-104 exam. Could you please provide practice test questions for the AZ-104 Azure Administrator Associate Certification Exams, along with some reference study materials to help me prepare?