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| Section | Weight | Objectives |
|---|---|---|
| Services and Networking | 20% | - Demonstrate basic understanding of NetworkPolicies - Provide and troubleshoot access to applications via services - Use Ingress rules to expose applications |
| Application Deployment | 20% | - Understand Deployments and how to perform rolling updates - Use the Helm package manager to deploy existing packages - Use Kubernetes primitives to implement common deployment strategies (e.g., blue/green or canary) - Kustomize |
| Application Observability and Maintenance | 15% | - Utilize container logs - Implement probes and health checks - Understand API deprecation policies - Use built-in CLI tools to monitor Kubernetes applications - Debugging in Kubernetes |
| Application Design and Build | 20% | - Choose and use the right workload resource (Deployment, DaemonSet, CronJob, etc.) - Define, build and modify container images - Utilize persistent and ephemeral volumes - Understand multi-container Pod design patterns (e.g., sidecar, init and others) |
| Application Environment, Configuration and Security | 25% | - Understanding and defining resource requirements, limits and quotas - ServiceAccounts - Understand authentication, authorization and admission control - ConfigMaps and Secrets - Discover and use resources that extend Kubernetes (CRD, Operators) - SecurityContexts |
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NEW QUESTION # 231
You must connect to the correct host . Failure to do so may result in a zero score.
[candidate@base] $ ssh ckad00021
Task
Create a Cronjob named grep that executes a Pod running the following single container:
name: busybox
image: busybox:stable
command: ["grep", "-i", "nameserv
er", "/etc/resolv.conf"]
Configure the CronJob to:
* execute Once every 30 minutes
* keep 96 completed Job
* keep 192 failed Job
* never restart podsterminate pods after 8 seconds
Manually create and execute once job
named grep-test from the grep Cronjob
Answer:
Explanation:
See the Explanation below for complete solution.
Explanation:
ssh ckad00021
Below is the clean, CKAD-friendly way (YAML + apply + verify + manual job).
1) Create the CronJob grep
Create a file (anywhere, e.g. in your home):
cat <<'EOF' > grep-cronjob.yaml
apiVersion: batch/v1
kind: CronJob
metadata:
name: grep
spec:
schedule: "*/30 * * * *"
successfulJobsHistoryLimit: 96
failedJobsHistoryLimit: 192
jobTemplate:
spec:
activeDeadlineSeconds: 8
template:
spec:
restartPolicy: Never
containers:
- name: busybox
image: busybox:stable
command: ["grep", "-i", "nameserver", "/etc/resolv.conf"]
EOF
Apply it:
kubectl apply -f grep-cronjob.yaml
Verify:
kubectl get cronjob grep
kubectl describe cronjob grep
Confirm the key fields quickly:
kubectl get cronjob grep -o jsonpath='{.spec.schedule}{"\n"}{.spec.successfulJobsHistoryLimit}{"\n"}{.spec.
failedJobsHistoryLimit}{"\n"}'
kubectl get cronjob grep -o jsonpath='{.spec.jobTemplate.spec.activeDeadlineSeconds}{"\n"}{.spec.
jobTemplate.spec.template.spec.restartPolicy}{"\n"}'
2) Manually create and execute the one-off Job grep-test from the CronJob Create the Job from the CronJob:
kubectl create job --from=cronjob/grep grep-test
Watch it:
kubectl get jobs grep-test
kubectl get pods -l job-name=grep-test
Get logs (most important proof):
POD=$(kubectl get pods -l job-name=grep-test -o jsonpath='{.items[0].metadata.name}') kubectl logs "$POD" You should see one or more nameserver ... lines from /etc/resolv.conf.
NEW QUESTION # 232
You are tasked With setting up a Kubernetes cluster With a service that exposes a web application, along with a database running as a stateful set The application needs to access the database through an internal IP address, but the database should not be accessible from outside the cluster. What are the steps involved to configure this, and what components should be used to achieve this setup?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
I). Create the Database StatefuISet:
- Define a StatefulSet for your database, ensuring it uses a persistent volume to store its data.
- Specify the database image and any necessary configuration.
- Configure a service of type 'ClusterlP' for the database, accessible only within the cluster
2. Create the Application Deployment: - Create a Deployment for your web application, specifying the application image and required ports. - Add an environment variable to the application container to define tne database connection string, using the database service's ClusterlP.
3. Create the Application Service: - Create a service of type 'LoadBalancers (or 'NodePort' if using a cloud provider) for your web application, exposing it to the outside world. - Ensure the service points to the application deployment.
4. Verify the Setup: - Ensure all resources are created successfully by running 'kubectl get all' - Access the web application through the external IP address exposed by the LoadBalancer service. - Verify that tne application can connect to the database. By following these steps, you've created a secure setup where the database is only accessible from within the cluster, while your web application can communicate With the database and expose its services to the outside world. , You have a Kubernetes cluster with multiple namespaces: 'dev', 'staging', and 'production'. You need to implement a network policy that allows pods in the 'dev' namespace to access services running in the 'staging' namespace. POdS in the 'dev' namespace should only be allowed to connect to ports 80 and 443 on the services in the 'staging' namespace. Implement the network policy configuration. A. See the solution below with Step by Step Explanation. Answer: A
NEW QUESTION # 233
You need to implement a strategy to manage and control the access of pods to specific resources in your Kubernetes cluster. Explain how you would use PodSecurityPolicies to enforce fine-grained access control.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a PodSecurityPolicy:
- Create a new YAML file (e.g., 'pod-security-policy.yaml') to define your PodSecurityPolicy.
- Specify the name of the PodSecurityPolicy and the namespace where it will be applied.
- Define the security policies for the PodSecurityPolicy. You can use the 'kubectl create -f pod-security- policy.yamP command to apply the PodSecurityPolicy.
3. Apply the PodSecurityPolicy to Deployments: - Update the 'podSecurityContext' field in your Deployment YAML to specify the PodSecurityPolicy.
4. Verify the PodSecurityPolicy: - Use the 'kubectl get podsecuritypolicy' command to list the applied PodSecurityPolicies and confirm their status. 5. Test the Restrictions: - Try to create pods that violate the rules defined in the PodSecurityPolicy. - Verify that the PodSecurityPolicy is effectively preventing the creation of pods that do not meet the defined security policies.,
NEW QUESTION # 234 
Task:
Modify the existing Deployment named broker-deployment running in namespace quetzal so that its containers.
1) Run with user ID 30000 and
2) Privilege escalation is forbidden
The broker-deployment is manifest file can be found at:
Answer:
Explanation:
See the solution below.
Explanation
Solution:
Text Description automatically generated
NEW QUESTION # 235
You are building a web application with two microservices: a frontend service ('frontend') and a backend service ( ' backend'). The frontend service requires access to the backend service, which iS exposed on port 8080 within the Kubernetes cluster. How would you configure an Ingress resource to direct traffic to the correct service based on the hostname, ensuring that the frontend service can access the backend service internally without exposing the backend service to the public internet?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Service tor the Backend Service:
- Define a Service for the 'backend' service, exposing it internally within the Kubernetes cluster on port 8080.
2. Configure the Ingress Resource: - Create an Ingress resource that directs traffic to the frontend service based on the hostname, allowing the frontend service to access the backend service internally without exposing it to the public internet - Define the Ingress rule to map the hostname 'frontend-example.com' to the 'frontend' service on port 80. - Configure an Ingress rule to enable access to the 'backend' service on port 8080 using the hostname 'internal-backend-example-com' within the Kubernetes cluster.
3. Create a Secret for the Frontend TLS Certificate: - Create a Secret in Kubernetes to store the TLS certificate and key for the frontend service.
4. Apply the Resources: - Apply the Service, Ingress, and Secret YAML files to your Kubernetes cluster using 'kubectl apply -f 5. Access the Frontend Service: - Access the frontend service using the hostname 'frontend-example.com'. The frontend service can now access the backend service internally using the hostname 'internal-backend-example-com' without exposing the backend service to the public internet.]
NEW QUESTION # 236
......
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2026 Latest Test4Sure CKAD PDF Dumps and CKAD Exam Engine Free Share: https://drive.google.com/open?id=1yR6xYkEmx1PHLm-XXeDY-czoVt_NAoey