This exam is designed to provide a basic understanding of the types of questions that are asked. These questions are not on the actual exam. Success on this practice exam does not imply success on the actual API Engineer exam.
For more learning resources on the API platform, check out the Apigee Community and the platform learning guide at this URL:
https://community.apigee.com/articles/56382/apigee-api-platform-learning-guide.html