Question: How many applications do you see hosted on the cluster? Check the numb . . .

Samir:
Question: How many applications do you see hosted on the cluster?
Check the number of deployments

root@controlplane:~# kubectl get deployments --all-namespaces
NAMESPACE     NAME      READY   UP-TO-DATE   AVAILABLE   AGE
default       blue      0/3     3            0           19s
kube-system   coredns   2/2     2            2           2m44s

Why is the correct answer 1 ?

Grant Powers:
It’s probably because most of the practice labs/exams assume you’re looking only at the default namespace (not the kube-system namespace). If you leave off the --all-namespaces parameter, the answer would be 1.