Are you a system administrator or a DevOps looking for a valuable certification in the most popular NoSQL wide-column store? These two original practice tests will help you score big in your Apache Cassandra Administrator Associate certification exam.This book contains two high-quality practice tests similar to the proctored exam. Just like the actual exam, each exam practice test has 60 questions that you can try answer in 90 minutes or less. You may also consider a 70% passing score, just like for the real exam.DataStax, the largest provider of a commercial version for Apache Cassandra, is also the company that offers these Administrator and Developer certification exams. DataStax cut down the price for a certification exam to $145 US. But you can qualify for a free voucher and pay nothing, if you complete a learning path watching three of their courses online.This is not a brain dump, but the questions closely emulate those from the actual exam. All practice test questions are created by the author and do not repeat themselves. Each question has a detailed explanation and one or more references. The questions are divided in four categories: Architecture, Operations, Data Modeling, and CQL. While both the Administrator and Developer paths have some common recommended courses, the practice tests include several questions from my previously published Become a Certified Cassandra Developer: Practice Exams book.The exam has been updated in mid-2020, and we offer here the same level of difficulty as those latest exam questions. Most questions are single-select, with four possible choices. Few questions have multiple-choices. There are no True/False questions.What you don't have at the actual exam are the questions you missed, and the correct answers. We provide detailed explanations with link references for every question.The exam will test your administration skills for Apache Cassandra 3 and DataStax Enterprise 6. You should have some prior basic knowledge on the product. Go to their online documentation, and watch DataStax Academy's recommended videos for this certification exam, to know more.An interactive version of this book has been implemented on Udemy: Become a Certified Cassandra Administrator: Practice Exams.