Linux Foundation CKA Quiz:21 Topic:11 Questions:101-105

Free Practice Mock Questions Set 101-105 (Quiz # 21) for Linux Foundation CKA Exam, according to official Linux Foundation Certified Kubernetes Administrator exam syllabus topic # 11

Question: 1

Ensure a single instance of pod nginx is running on each node of the Kubernetes cluster where nginx also represents the Image name which has to be used. Do not override any taints currently in place.

Use DaemonSet to complete this task and use ds-kusc00201 as DaemonSet name.

AExplanation:
solution

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Question: 2

Create an nginx pod with container Port 80 and it should only receive traffic only it checks the endpoint / on port 80 and verify and delete the pod.

Akubectl run nginx --image=nginx --restart=Never --port=80 --
dry-run -o yaml > nginx-pod.yaml
// add the readinessProbe section and create
vim nginx-pod.yaml
run: nginx
name: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 60
readinessProbe:
httpGet:
path: /
port: 60
restartPolicy: Never
kubectl apply -f nginx-pod.yaml
// verify
kubectl describe pod nginx | grep -i readiness
kubectl delete po nginx

Bkubectl run nginx --image=nginx --restart=Never --port=80 --
dry-run -o yaml > nginx-pod.yaml
// add the readinessProbe section and create
vim nginx-pod.yaml
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 80
readinessProbe:
httpGet:
path: /
port: 80
restartPolicy: Never
kubectl apply -f nginx-pod.yaml
// verify
kubectl describe pod nginx | grep -i readiness
kubectl delete po nginx

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Question: 3

Create a nginx pod that will be deployed to node with the label

"gpu=true"

Akubectl run nginx --image=nginx --restart=Always --dry-run -o
yaml > nodeselector-pod.yaml
// add the nodeSelector like below and create the pod
kubectl apply -f nodeselector-pod.yaml
vim nodeselector-pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx
spec:
nodeSelector:
gpu: true
containers:
- image: nginx
name: nginx
restartPolicy: Always
kubectl apply -f nodeselector-pod.yaml
//Verify
kubectl get no --show-labels
kubectl get po
kubectl describe po nginx | grep Node-Selectors

Bkubectl run nginx --image=nginx --restart=Always --dry-run -o
yaml > nodeselector-pod.yaml
// add the nodeSelector like below and create the pod
kubectl apply -f nodeselector-pod.yaml
vim nodeselector-pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx
spec:
nodeSelector:
gpu: true
yaml
//Verify
kubectl get no --show-labels
kubectl get po
kubectl describe po nginx | grep Node-Selectors

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Question: 4

SIMULATION

Perform the following tasks:

* Add an init container to hungry-bear (which has been defined in spec file /opt/KUCC00108/pod-spec-KUC

C00108.yaml

)

* The init container should create an empty file named

/workdir/calm.txt

* If /workdir/calm.txt is not detected, the pod should exit

* Once the spec file has been updated with the init container definition, the pod should be created

Asolution

Bsolution

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Question: 5

SIMULATION

The following TLS certificates/key are supplied for connecting to the server with etcdctl:

* CA certificate: /opt/KUCM00302/ca.crt

* Client certificate: /opt/KUCM00302/etcd-client.crt

* Client key: Topt/KUCM00302/etcd-client.key

Asolution

Bsolution

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Quiz 17

Quiz 18

Quiz 19

Quiz 20

Quiz 21