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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage | 10% | - Understand persistent volume claims primitive - Understand how to configure applications with persistent storage - Understand volume mode, access modes and reclaim policies - Understand Storage Classes and Persistent Volumes |
| Topic 2: Services & Networking | 20% | - Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Define and enforce Network Policies - Understand connectivity between Pods - Know how to use Ingress controllers and Ingress resources - Understand and use CoreDNS - Use the Gateway API to manage Ingress traffic |
| Topic 3: Workloads & Scheduling | 15% | - Understand how scheduler works - Use ConfigMaps and Secrets to configure applications - Understand Static Pods - Understand DaemonSets - Understand resource limits and requests - Understand Deployments and rolling update/rollback - Use label selectors to schedule Pods - Understand how to run multiple schedulers and configure scheduler policies |
| Topic 4: Cluster Architecture, Installation & Configuration | 25% | - Implement and configure a highly-available control plane - Manage role based access control (RBAC) - Manage the lifecycle of Kubernetes clusters - Use Helm and Kustomize to install cluster components - Understand extension interfaces (CNI, CSI, CRI, etc.) - Understand CRDs, install and configure operators - Prepare underlying infrastructure for installing a Kubernetes cluster - Create and manage Kubernetes clusters using kubeadm |
| Topic 5: Troubleshooting | 30% | - Manage container stdout & stderr logs - Understand how to monitor applications - Troubleshoot cluster component failure - Troubleshoot networking - Evaluate cluster and node logging - Troubleshoot application failure |
>> Guaranteed CKA Questions Answers <<
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NEW QUESTION # 29
Create a pod named kucc8 with a single app container for each of the following images running inside (there may be between 1 and 4 images specified):
nginx + redis + memcached.
Answer:
Explanation:
solution
NEW QUESTION # 30
Print all pod name and all image name and write it to a file
name "/opt/pod-details.txt"
Answer:
Explanation:
kubectl get pods -o=custom-columns='Pod Name:metadata.name','Image:spec.containers[*].image' > /opt/pod-details.txt
NEW QUESTION # 31
Score: 13%
Task
A Kubernetes worker node, named wk8s-node-0 is in state NotReady. Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.
Answer:
Explanation:
See the solution below.
Explanation
Solution:
sudo -i
systemctl status kubelet
systemctl start kubelet
systemctl enable kubelet
NEW QUESTION # 32
Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.
Answer:
Explanation:
NEW QUESTION # 33
How would you configure a PersistentVolumeClaim with a storage class for a specific type of storage, such as SSD or NVMe, and how would you specify the storage capacity?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Storage Class:
- Define a storage class that specifies the desired storage type (SSD or NVMe) and any other relevant parameters.
2. Define the PersistentVolumeClaim: - Create a PersistentVolumeClaim with the storage class you defined in the previous step. Specify the desired storage capacity using the 'resources.requests.storage' field.
3. Apply the Changes: - Apply the storage class and PersistentVolumeClaim using 'kubectl apply -f fast-storage.yaml' and 'kubectl apply -f my-pvc.yaml' - The storage class 'fast-storage' in this example specifies the use of AWS EBS volumes with the 'gp2' volume type (SSD) and encryption enabled. - The PersistentVolumeClaim is configured to use the 'fast-storage' class and requests IOGi of storage. This configuration ensures that the PVC provisioned for the pod uses the specified storage class (SSD in this case) and the requested storage capacity.
NEW QUESTION # 34
......
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