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Linux Foundation Certified Kubernetes Application Developer Exam Sample Questions (Q192-Q197):

NEW QUESTION # 192
You have a Deployment named 'wordpress-deployment' that runs 3 replicas of a WordPress container. You want to implement a blue- green deployment strategy for this deployment This strategy should involve creating a new replica set with the updated image, and then gradually shitting traffic to the new replica set. After the traffic has been shifted, the old replica set should be deleted. This process should be fully automated whenever a new image is pushed to the Docker Hub repository 'example/wordpress:latest'

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Kubernetes Secret for Docker Hub Credentials:
- You'll need a Secret to securely store your Docker Hub credentials for pulling images. Create a Secret with the following YAML:

- Replace with the base64 encoded content of your Docker Hub credentials file. This file is typically named '~/.docker/config.json' and contains your Docker Hub username and password. You can create this file or update it manually. To encode the file, use a command like 'base64 ~/.docker/config .jsons 2. Create a ConfigMap for Deployment Configuratiom - Create a ConfigMap to hold the image name and any other deployment-specific configuration:

3. Define a Deployment with a Blue-Green Strategy: - Create a Deployment named swordpress-deployment that incorporates the blue-green deployment strategy. This Deployment will have a 'strategy' section with a 'type' of 'Recreate' (for initial deployment) and a 'blueGreenDeploymentStrategy' section: 4. Create a Service.

- Create a Kubernetes Service that exposes your WordPress application. This service will automatically route traffic to the active replica set.

5. Automate the Blue-Green Deployment - Use a 'DeploymentConfig' resource to configure the automatic deployment

6. Apply the resources: - Apply all the YAML files using 'kubectl apply -f' to create the necessary resources. 7. Trigger the Blue-Green Deployment - Push a new image to the Docker Hub repository 'example/wordpress:latest' The 'Deploymentconfig' will automatically trigger the blue-green deployment: -A new replica set with the updated image will be created, and traffic will be shifted to the new replica set gradually - Once the traffic has been shifted, the old replica set will be deleted. Note: This implementation assumes that you are using OpenShift. If you are using a different Kubernetes distribution, the configuration may need to be adjusted SligntlY. ,

NEW QUESTION # 193
Exhibit:

Context
A web application requires a specific version of redis to be used as a cache.
Task
Create a pod with the following characteristics, and leave it running when complete:
* The pod must run in the web namespace.
The namespace has already been created
* The name of the pod should be cache
* Use the Ifccncf/redis image with the 3.2 tag
* Expose port 6379

A. Solution:
B. Solution:

Answer: B

NEW QUESTION # 194
You need to schedule a job to run every day at 10:00 AM to clean up old container images in your Kubernetes cluster These images are tagged with "app=my-app" and have been created in the last 7 days. How would you implement this using a CronJob?

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a CronJob YAML file:

2. Apply the Cronjob: bash kubectl apply -f image-cleanup-cronjob.yaml 3. Verify the CronJob: bash kubectl get cronjobs - Schedule: The 'schedule' field defines the cron expression, which triggers the job every day at 10:00 AM. - Job Template: - The 'j0bTemplate' defines the actual job that Will be executed. - Container: - The 'image' field specifies the container image to use. In this case, it's a container with 'kubectr pre-installed_ - The 'command' and Sargs' fields detine the command to run in the container. The command uses 'kubectr to list images With the specified label and then iterates through them, checking their creation date. If an image is older than 7 days, it's deleted. - RestaftPolicy: The 'restartPolicy' is set to 'OnFailure' to ensure the job restarts if it fails. Important Note: - Make sure the container image you choose has the necessary tools (like 'kubectl') to interact with your Kubernetes cluster. - This solution assumes you have the necessary permissions to delete images. If not, you may need to modify the 'kubectl delete image' command to use appropriate RBAC roles. - This solution doesn't consider images used by running pods. You should adjust the script to exclude images that are currently in use. This Cronjob will automatically run every day, cleaning up old container images and maintaining a clean environment in your cluster.,

NEW QUESTION # 195

Context
You are tasked to create a ConfigMap and consume the ConfigMap in a pod using a volume mount.
Task
Please complete the following:
* Create a ConfigMap named another-config containing the key/value pair: key4/value3
* start a pod named nginx-configmap containing a single container using the nginx image, and mount the key you just created into the pod under directory /also/a/path See the solution below.

Answer:

Explanation:
Explanation
Solution:

NEW QUESTION # 196
Exhibit:

Task
Create a new deployment for running.nginx with the following parameters;
* Run the deployment in the kdpd00201 namespace. The namespace has already been created
* Name the deployment frontend and configure with 4 replicas
* Configure the pod with a container image of lfccncf/nginx:1.13.7
* Set an environment variable of NGINX__PORT=8080 and also expose that port for the container above

A. Solution:
B. Solution:

Answer: B

NEW QUESTION # 197
......

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Paul Carter Paul Carter

Biography

CKAD Regualer Update - CKAD Valid Braindumps Book

CKAD Regualer Update | Accurate Linux Foundation Certified Kubernetes Application Developer Exam 100% Free Valid Braindumps Book

Linux Foundation Certified Kubernetes Application Developer Exam Sample Questions (Q192-Q197):

Professional CKAD Regualer Update, CKAD Valid Braindumps Book

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