Mock Test 1

1. Question

Deploy a pod named nginx-pod using the nginx-alpine image

Answer

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k run nginx-pod --image=nginx:alpine

2. Question

Deploy a messagine pod using the redis:alpine image with the labels set to tier=msg

Answer

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k run messaging --image=redis:alpine -l tier=msg

3. Question

Create a namespace named apx-x9984574

Answer

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k create namespace apx-x9984574

4. Question

Get the list of nodes in JSON format and store it in a file at /opt/outputs/nodes-z3444kd9.json

Answer

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kubectl get nodes -o json > /opt/outputs/nodes-z3444kd9.json

5. Question

Create a service messaging-service to expose the messaging application within the cluster on port 6379.

Answer

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k expose pod messaging --name messaging-service --port 6379

6. Question

Create a deployment named hr-web-app using the image kodekloud/webapp-color with 2 replicas.

Answer

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k create deployment hr-web-app --image=kodekloud/webapp-color --replicas=2

7. Question

Create a static pod named static-busybox on the controlplane node that uses the busybox image and the command sleep 1000.

Answer

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kubectl run --restart=Never --image=busybox static-busybox --dry-run=client -oyaml --command -- sleep 1000 > /etc/kubernetes/manifests/static-busybox.yaml

8. Question

Create a POD in the finance namespace named temp-bus with the image redis:alpine.

Answer

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k run temp-bus --image=redis:alpine -n finance

9. Question

A new application orange is deployed. There is something wrong with it. Identify and fix the issue.

Answer

To know more details of orange pod:

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k describe pod orange

initContainers section, There is an issue with the given command

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k edit pod orange

k replace -f /tmp/kubectl-edit-xxxx.yaml

10. Question

Expose the hr-web-app as service hr-web-app-service application on port 30082 on the nodes on the cluster.

The web application listens on port 8080.

Answer

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kubectl expose deployment hr-web-app --type=NodePort --port=8080 --name=hr-web-app-service --dry-run=client -o yaml > hr-web-app-service.yaml

In generated service definition file add the nodePort field with the given port number under the ports section and create a service

11. Question

Use JSON PATH query to retrieve the osImages of all the nodes and store it in a file /opt/outputs/nodes_os_x43kj56.txt.

The osImages are under the nodeInfo section under status of each node.

Answer

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kubectl get nodes -o jsonpath='{.items[*].status.nodeInfo.osImage}' > /opt/outputs/nodes_os_x43kj56.txt

12. Question

Create a Persistent Volume with the given specification: -

Volume name: pv-analytics

Storage: 100Mi

Access mode: ReadWriteMany

Host path: /pv/data-analytics

Answer

1

vim pv-analytics.yaml

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---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-analytics
spec:
  capacity:
    storage: 100Mi
  volumeMode: Filesystem
  accessModes:
    - ReadWriteMany
  hostPath:
      path: /pv/data-analytics