Exam (elaborations)
CKAD TEST QUESTIONS WITH CORRECT ANSWERS
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Exam of 10 pages for the course CKAD at CKAD (CKAD TEST)
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CKAD TESTwhich command do you run on k8s to display details about the cluster? - answerkubectl
cluster-info
which command do you use to list all nodes? - answerkubectl get nodes
kubectl version - answer
How do you feed a config file to K8s cluster - answerkubectl apply -f <name of a config
yml>
get status of all pods - answerkubectl get pods
Simplest way to use kubectl to create a nginx pod and run it - answerkubectl run nginx
--image nginx
how can you see the status of your pods - answerkubectl get pods
What is the version of Kubernetes running on the nodes ? - answerkubectl version
read out the git version
How many nodes are running on the cluster? - answerkubectl get nodes
What is the flavor and version of Operating System on which the Kubernetes nodes are
running? - answerkubectl get nodes -o wide and look at the Operating System.
which are the top 4 properties in every kubernetes yaml? - answerapiVersion, kind,
metadata, spec
which apiVersion should be used for Pods? - answerv1
which apiVersion should be used for a Service? - answerv1
which apiVersion should be used for a ReplicaSet? - answerapps/v1
which apiVersion should be used for a deployment? - answerapps/v1
what belongs in the spec of a Pod? - answercontainers: a list of objects with name and
image properties
, what is the command to display detailed pod information? - answerkubectl describe pod
<podname>
what image was used to create this pod? - answerkubectl describe pod <podname>
which node is this pod paced on? - answerkubectl describe pod <podname>
how many containers are part of this pod? - answerkubectl describe pod <podname>
How do you remove a pod from the cluster? - answerkubectl delete pod <podname>
Create a new pod with the nginx image. - answerkubectl run nginx --image=nginx
How can you create a pod from an image in a oneline command? - answerkubectl run
nginx --image=nginx
How do you extract a pod definition from an existing pod? - answerkubectl get pod
<podname> -o yaml > filename.yml
How can you edit an existing pods properties? - answerkubectl edit pod <pod-name>
in the CKAD exam, if you are asked to edit an existing pod... - answerif i am given a
yaml file, edit that and apply it
if no yaml file is given: extract the definition using k get pod <pod-name> -o yaml >
definition.yaml
then edit the file to make the necessary changes, delete and re-create the pod.
What are kubernetes controllers? - answerthe processes that monitor kubernetes
objects and respond to changes
Why do we need a replication controller even for a single pod? - answerreplication
controller will bring a new pod when the existing one fails
What is the difference between replication controller and replica set? -
answerReplication controller is an older controller that is being replaced by replicaSet.
selectors are mandatory in replicaSet
what is the version for replicaset? - answerapps/v1
What is the spec for ReplicaSet? - answertemplate, replicas, selector
what belongs on the template property of a ReplicaSet? - answerthe pod definition,
metadata and spec of the regular pod yaml as a sub structure
what belongs in the replicas section of the ReplicaSet? - answerthe number of pods to
keep alive
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