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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshooting | 30% | - Cluster component troubleshooting - Application and networking debugging |
| Topic 2: Workloads & Scheduling | 15% | - Deployments and rolling updates - Scheduling constraints - ConfigMaps and Secrets |
| Topic 3: Storage | 10% | - Storage classes - PersistentVolumes and PersistentVolumeClaims |
| Topic 4: Cluster Architecture, Installation & Configuration | 25% | - High availability setup - Cluster installation and configuration - Kubernetes architecture components |
| Topic 5: Services & Networking | 20% | - Services (ClusterIP, NodePort, LoadBalancer) - Ingress configuration - Network policies |
>> CKA Latest Practice Materials <<
The Certified Kubernetes Administrator (CKA) Program Exam (CKA) is one of the popular exams of Linux Foundation CKA. It is designed for Linux Foundation aspirants who want to earn the Certified Kubernetes Administrator (CKA) Program Exam (CKA) certification and validate their skills. The CKA test is not an easy exam to crack. It requires dedication and a lot of hard work. You need to prepare well to clear the Certified Kubernetes Administrator (CKA) Program Exam (CKA) test on the first attempt. One of the best ways to prepare successfully for the CKA examination in a short time is using real CKA Exam Dumps.
NEW QUESTION # 26
Create a configmap called myconfigmap with literal value
appname=myapp
Answer: B
NEW QUESTION # 27
Create a deployment as follows:
* Name: nginx-app
* Using container nginx with version 1.11.10-alpine
* The deployment should contain 3 replicas
Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update.
Finally, rollback that update to the previous version 1.11.10-alpine.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 28
Get the pods with labels env=dev and env=prod and output the labels as well
Answer:
Explanation:
kubectl get pods -l 'env in (dev,prod)' --show-labels
NEW QUESTION # 29
You need to deploy a microservice application that uses a custom DNS service for internal communication between microservices. This DNS service is not a standard Kubernetes DNS service. How would you configure Kubernetes to use your custom DNS service for the internal communication of your application?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a ConfigMap for DNS Configuration:
- Create a ConfigMap to store the DNS configuration details for your custom DNS service.
- Example:
- Replace '10.0.0.1 ,10.0.0.2 with the IP addresses of your custom DNS servers and 'my-app.svc.cluster.local' with the search domain for your application. 2. Create a DaemonSet for DNS Configuration: - Create a DaemonSet that will inject the custom DNS configuration into all pods in your cluster. - Example:
- This DaemonSet will use a 'busybox' container to write the DNS configuration from the 'custom-dns-config' ConfigMap to the '/etc/resolv.conf file in every pod. 3. Deploy your Application: - Deploy your microservice application with the appropriate labels to ensure that the DaemonSet injects the custom DNS configuration into your application's pods. 4. Verify DNS Resolution: - Verify that your application's pods can resolve internal DNS names using your custom DNS service. - Example: - You can use the 'nslookup command within a pod to test DNS resolution. 5. Configure Security: - Implement appropriate security measures to protect your custom DNS service and prevent unauthorized access to your application's internal services. - Example: - Consider using a firewall to restrict access to the custom DNS servers. - Configure access control lists to limit access to the DNS service.
NEW QUESTION # 30
List pod logs named "frontend" and search for the pattern "started" and write it to a file "/opt/error-logs" See the solution below.
Answer:
Explanation:
Kubectl logs frontend | grep -i "started" > /opt/error-logs
NEW QUESTION # 31
......
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