So what do we have to understand for the purpose of the exam about ingresses?
First of all, ingresses route HTTPS traffic toward one or many services, and it does so
by defining a specific context path per service.
Now the underlying component that evaluates the rules specified in an ingress is the ingress
controller.
So that is a component that you will need to install in your Kubernetes cluster.
Now you can define multiple ingress controllers if you want to, and you would be able to switch
between them by spelling out the ingress controller name by an attribute that we can specify for
the ingress object.
Now you're not expected to understand how to configure TLS termination for an ingress.
That is more topic for the CKS certification.
But if you want to dive deeper, you definitely can.
You will find that information in the Kubernetes documentation.