CKA VALID TEST PAPERS | CKA VALID TEST MATERIALS

CKA Valid Test Papers | CKA Valid Test Materials

CKA Valid Test Papers | CKA Valid Test Materials

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q31-Q36):

NEW QUESTION # 31
List "nginx-dev" and "nginx-prod" pod and delete those pods

Answer:

Explanation:
See the solution below.
Explanation
kubect1 get pods -o wide
kubectl delete po "nginx-dev"kubectl delete po "nginx-prod"


NEW QUESTION # 32
Create the deployment redis with image=redis and expose it with "NodePort" service redis-service

  • A. kubectl create deploy redis --image=redis --dry-run -o yaml >
    redis-deploy.yaml
    Edit redis-deploy.yaml file
    name: redis
    spec:
    replicas: 1
    selector:
    matchLabels:
    app: redis
    template:
    metadata:
    labels:
    app: redis
    spec:
    containers:
    - image: redis
    name: redis
    //Creating Service
    kubectl expose deploy redis --type=NodePort --port=6379 --
    target-port=6379 --name redis-service
    // Verify
    kubectl get deploy,svc
  • B. kubectl create deploy redis --image=redis --dry-run -o yaml >
    redis-deploy.yaml
    Edit redis-deploy.yaml file
    vim redis-deploy.yaml
    apiVersion: apps/v1
    kind: Deployment
    metadata:
    labels:
    app: redis
    name: redis
    spec:
    replicas: 1
    selector:
    matchLabels:
    app: redis
    template:
    metadata:
    labels:
    app: redis
    spec:
    containers:
    - image: redis
    name: redis
    //Creating Service
    kubectl expose deploy redis --type=NodePort --port=6379 --
    target-port=6379 --name redis-service
    // Verify
    kubectl get deploy,svc

Answer: B


NEW QUESTION # 33
You are running a Deployment named 'web-app' with 3 replicas of a web application container. The container image is hosted in a private registry accessible via a secret named 'my-registry-secret'. You need to implement a rolling update strategy that allows for a maximum of one pod to be unavailable at any given time during the update process. Additionally, you need to configure a 'pre-stop' hook for the container that gracefully shuts down the web application before it is terminated.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Update the Deployment YAML:
- Update the 'replicas' to 3.
- Define 'maxUnavailable: 1' and 'maxSurge: 0' in the 'strategy.rollingUpdate' section to control the rolling update process.
- Configure a 'strategy.type' to 'RollingUpdate' to trigger a rolling update when the deployment is updated.
- Add a Always' to ensure that the new image is pulled
even if it exists in the pod's local cache.
- Add a hook to define a script that gracefully shuts down
the web application before the pod is terminated.

2. Create the Deployment: - Apply the updated YAML file using 'kubectl apply -f web-app.yamP 3. Verify the Deployment: - Check the status of the deployment using 'kubectl get deployments web-app' to confirm the rollout and updated replica count. 4. Trigger the Automatic Update: - Push a new image to the 'my-private-registry/web-app:latest' private registry. 5. Monitor the Deployment: - Use "kubectl get pods -l app=web-app' to monitor the pod updates during the rolling update process. You will observe that one pod is terminated at a time, while one new pod with the updated image is created. 6. Check for Successful Update: - Once the deployment is complete, use 'kubectl describe deployment web-app' to see that the 'updatedReplicas' field matches the 'replicas' field, indicating a successful update.


NEW QUESTION # 34
Scale the deployment webserver to

Answer:

Explanation:
See the solution below.
Explanation
solution


NEW QUESTION # 35
You have two Kubernetes clusters, 'cluster 1' and 'cluster2, and you need to establish a connection between the two clusters using a NetworkPolicy. You want to allow all traffic from pods in 'cluster 1' to pods in 'cluster? , and you need to implement this using an Ingress rule. What steps are required to configure this connection?

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a NetworkPolicy in 'cluster?
- Create a NetworkPolicy in 'cluster? that allows all traffic from pods in 'cluster 1'
- Code:

2. Create an Ingress in 'cluster2: - Create an Ingress in 'cluster? that routes traffic from 'clusterl' to the appropriate services or pods in cluster?. - Code:

3. Apply the Configurations: - Apply the NetworkPolicy and Ingress resources to the respective clusters using 'kubectl apply -f networkpolicy.yaml' and 'kubectl apply -f ingress.yaml'.


NEW QUESTION # 36
......

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