Questions

1. What happens if you run the same kubectl create command twice?
2. What happens if you run the same kubectl apply command twice?
3. In terms of questions 1 and 2, why do they act differently the second time they are run?
4. What is the purpose of a ReplicaSet, and what other resource creates a ReplicaSet?
5. What is the purpose of etcd in a Kubernetes cluster?
6. How can a container find out the IP address of another container that runs in the same pod?
7. What happens if you create two deployments with the same name but in different namespaces?
8. What can you make the creation of two services with the same name fail if they are created in two different namespaces?