There is a section for GKE in gcp-certified-associate-cloud-engineer course. However, the explaination by Nigel is not covered in this course. Since this is a very important topic for certification, can you please add the required information regarding GKE to this course.
I also got same doubt but the link for "Kubernetes Deep Dive" is given in Resources section of chapter 12.1
Nigel’s course is this one: https://acloud.guru/overview/kubernetes-deep-dive