Default namespaces overview in Kubernetes - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to list all namespaces in Kubernetes.

Kubernetes

kubectl get [1]

Drag options to blanks, or click blank then click option'

Anamespaces

Bpods

Cservices

Dnodes

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'pods' instead of 'namespaces' will list pods, not namespaces.

Using 'services' or 'nodes' will list other resources, not namespaces.

The command kubectl get namespaces lists all namespaces in the Kubernetes cluster.

2fill in blank

medium

Complete the command to switch to the default namespace in Kubernetes.

Kubernetes

kubectl config set-context --current --namespace=[1]

Drag options to blanks, or click blank then click option'

Adefault

Bkube-system

Cproduction

Ddev

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'kube-system' switches to the system namespace, not default.

Using custom names like 'production' or 'dev' will fail if those namespaces don't exist.

The default namespace in Kubernetes is named default. This command sets the current context to use it.

3fill in blank

hard

Fix the error in the command to describe the default namespace.

Kubernetes

kubectl describe [1] default

Drag options to blanks, or click blank then click option'

Apod

Bnode

Cservice

Dnamespace

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'pod' will try to describe a pod named 'default', which likely does not exist.

Using 'service' or 'node' will describe other resource types, not namespaces.

The resource type to describe a namespace is namespace. Using 'pod', 'service', or 'node' will describe other resources.

4fill in blank

hard

Fill both blanks to create a pod in the default namespace using kubectl.

Kubernetes

kubectl run nginx --image=nginx --restart=Never -n [1] --port=[2]

Drag options to blanks, or click blank then click option'

Adefault

B80

C443

Dkube-system

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'kube-system' will create the pod in the system namespace, not default.

Using port 443 is for HTTPS, but nginx defaults to 80.

The pod is created in the default namespace and listens on port 80, the standard HTTP port.

5fill in blank

hard

Fill all three blanks to list pods in the default namespace with wide output.

Kubernetes

kubectl get [1] -n [2] -o [3]

Drag options to blanks, or click blank then click option'

Apods

Bdefault

Cwide

Dservices

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'services' instead of 'pods' will list services, not pods.

Using other output formats like 'json' or 'yaml' will show different formats, not wide.

This command lists all pods in the default namespace with detailed information shown by the wide output option.