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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Services and Networking | 20% | - Demonstrate basic understanding of NetworkPolicies - Provide and troubleshoot access to applications via services - Use Ingress rules to expose applications |
| Topic 2: Application Environment, Configuration and Security | 25% | - SecurityContexts - Understand authentication, authorization and admission control - ConfigMaps and Secrets - Discover and use resources that extend Kubernetes (CRD, Operators) - ServiceAccounts - Understanding and defining resource requirements, limits and quotas |
| Topic 3: Application Deployment | 20% | - Use Kubernetes primitives to implement common deployment strategies (e.g., blue/green or canary) - Kustomize - Understand Deployments and how to perform rolling updates - Use the Helm package manager to deploy existing packages |
| Topic 4: Application Observability and Maintenance | 15% | - Implement probes and health checks - Utilize container logs - Understand API deprecation policies - Debugging in Kubernetes - Use built-in CLI tools to monitor Kubernetes applications |
| Topic 5: Application Design and Build | 20% | - Define, build and modify container images - Choose and use the right workload resource (Deployment, DaemonSet, CronJob, etc.) - Utilize persistent and ephemeral volumes - Understand multi-container Pod design patterns (e.g., sidecar, init and others) |
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NEW QUESTION # 52 
Task:
1) First update the Deployment cka00017-deployment in the ckad00017 namespace:
*To run 2 replicas of the pod
*Add the following label on the pod:
Role userUI
2) Next, Create a NodePort Service named cherry in the ckad00017 nmespace exposing the ckad00017- deployment Deployment on TCP port 8888 See the solution below.
Answer:
Explanation:
Solution:
NEW QUESTION # 53
You are deploying a new microservice called 'payment-service' that requires access to a confidential data volume mounted at /sensitive- data'. This volume is mounted as a Secret in Kubernetes. The 'payment-service' container should only be allowed to access this volume. You need to configure the PodSecurityPolicy to enforce this access restriction.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
I). Create a PodSecurityPoIicy:
- Create a YAML file for your P0dSecurityP01icy.
- Define the 'apiVersion' and 'kind'
- Add a 'metadata' section with a unique name for the policy (e.g., 'payment-service-psp').
- In the 'spec' section:
- Set 'runAsUser' to ' RunAsAny' to allow any user ID.
- Set readOnlyRootFilesystem' to 'talse' to allow modifications within the container.
- Set 'hostNetworR to 'false' to avoid using the host's network.
- Set 'allowPrivilegeEscalatiorU to 'false' to prevent privilege escalation.
- In the 'volumes' sectiom
- Define 'hostPath' as the allowed volume type with the specified path "Isensitive-data'
2. Apply the PodSecurityPolicy: - Use ' kubectl apply -f payment-service-psp.yamr to create the PodSecurityPoIicy in your cluster. 3. Create a ServiceAccount: - Create a new ServiceAccount tor the 'payment-service deployment. - Apply the ServiceAccount YAML file using 'kubectl apply -f payment-service-sa_yamr 4. Bind the PodSecurityPolicy to the ServiceAccount: - Create a RoleBinding to bind the 'payment-service-psp' to the 'payment-service' ServiceAccount - Apply the RoleBinding YAML file using "kubectl apply -f payment-service-rb.yaml'
5. Deploy the Payment Service: - Create the 'payment-service' Deployment configuration. - Specify the 'payment-service' ServiceAccount in the field. - Define the 'volumeMount tor the 'sensitive-data' volume and specify the corresponding 'volume' in the 'volumes' section. - Ensure the volume is mounted as a Secret from the 'default' namespace.
- The PodSecurityPolicy restricts the benavior of pods and their containers. - 'runAslJser' , 'readOnlyRootFilesystem', 'hostNetwork' , and sallowPrivilegeEscalation' define various security constraints for the container. - The 'volumes' section specifies allowed volume types (e.g., 'hostPath') and paths. - The ServiceAccount binds the PodSecurityPolicy to the deployment. - The ROIeBinding assigns the PodSecurityPolicy to the ServiceAccount, effectively enforcing the specified constraints. This configuration ensures that only the payment-service' deployment can access the confidential data volume mounted as a Secret in Kubernetes.
NEW QUESTION # 54 
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:
Solution:
NEW QUESTION # 55
You are building a web application that requires environment-specific configurations, such as database connection details and API keys. You want to use ConfigMaps to manage these configurations in a secure and efficient way You have the following environment variables defined in your deployment YAML:
Create a ConfigMap named 'my-app-config' containing the following data: - 'database host: 'db.example.com' - 'api_key':
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create the ConfigMap:
2. Apply the ConfigMap: bash kubectl apply -f my-app-config.yaml 3. Verify the ConfigMap: bash kubectl get configmap my-app-config -o yaml This command will display the created ConfigMap and its contents. 4. Deploy the Deployment: bash kubectl apply -f deploymentyaml The deployment Will now use the values from the ConfigMap to populate the environment variables within the containers. 5. Check the Pods: bash kubectl get pods -l app=my-app -o wide 6. Confirm Environment Variables: bash kubectl exec -it bash -c 'env' Replace with the name of one of the pods. This command will display the environment variables set within the container, including 'DATABASE HOST and 'API KEY'. Note: You should replace with your actual API key in the ConfigMap. This ensures that sensitive information is stored in a separate configuration file and not directly in the deployment YAML file.
NEW QUESTION # 56
You have a Kubernetes deployment tnat uses a ConfigMap to provide configuration settings to your application. You need to update tne ConfigMap with new settings without restarting the deployment.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Update the ConfigMap:
- Create or update your ConfigMap YAML file, for example, Sapp-config.yaml':
- Replace and 'debug' with the desired new values. 2. Apply the Updated ConfigMap: - Apply the updated ConfigMap using: bash kubectl apply -f app-config.yaml 3. Verify the Update: - Check the updated ConfigMap using: bash kubectl get configmap app-config -o yaml - Confirm that the new settings are reflected in the ConfigMap. 4. (Optional) Monitor Application Logs: - If your application is logging configuration values, you can check the logs to ensure it's now using the updated settings.
NEW QUESTION # 57
......
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