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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cluster Architecture, Installation & Configuration | 25% | - Understand extension interfaces (CNI, CSI, CRI, etc.) - Manage the lifecycle of Kubernetes clusters - Implement and configure a highly-available control plane - Use Helm and Kustomize to install cluster components - Create and manage Kubernetes clusters using kubeadm - Understand CRDs, install and configure operators - Prepare underlying infrastructure for installing a Kubernetes cluster - Manage role based access control (RBAC) |
| Topic 2: Storage | 10% | - Understand Storage Classes and Persistent Volumes - Understand persistent volume claims primitive - Understand how to configure applications with persistent storage - Understand volume mode, access modes and reclaim policies |
| Topic 3: Workloads & Scheduling | 15% | - Understand DaemonSets - Use label selectors to schedule Pods - Understand Deployments and rolling update/rollback - Use ConfigMaps and Secrets to configure applications - Understand resource limits and requests - Understand how to run multiple schedulers and configure scheduler policies - Understand Static Pods - Understand how scheduler works |
| Topic 4: Services & Networking | 20% | - Understand and use CoreDNS - Use the Gateway API to manage Ingress traffic - Define and enforce Network Policies - Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Know how to use Ingress controllers and Ingress resources - Understand connectivity between Pods |
| Topic 5: Troubleshooting | 30% | - Troubleshoot application failure - Understand how to monitor applications - Evaluate cluster and node logging - Troubleshoot networking - Manage container stdout & stderr logs - Troubleshoot cluster component failure |
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NEW QUESTION # 15
Scale down the deployment to 1 replica
Answer:
Explanation:
kubectl scale deployment webapp -replicas=1 //Verify kubectl get deploy kubectl get po,rs
NEW QUESTION # 16
Score:7%
Task
Create a new PersistentVolumeClaim
* Name: pv-volume
* Class: csi-hostpath-sc
* Capacity: 10Mi
Create a new Pod which mounts the PersistentVolumeClaim as a volume:
* Name: web-server
* Image: nginx
* Mount path: /usr/share/nginx/html
Configure the new Pod to have ReadWriteOnce access on the volume.
Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.
Answer:
Explanation:
Solution:
vi pvc.yaml
storageclass pvc
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pv-volume
spec:
accessModes:
- ReadWriteOnce
volumeMode: Filesystem
resources:
requests:
storage: 10Mi
storageClassName: csi-hostpath-sc
# vi pod-pvc.yaml
apiVersion: v1
kind: Pod
metadata:
name: web-server
spec:
containers:
- name: web-server
image: nginx
volumeMounts:
- mountPath: "/usr/share/nginx/html"
name: my-volume
volumes:
- name: my-volume
persistentVolumeClaim:
claimName: pv-volume
# craete
kubectl create -f pod-pvc.yaml
#edit
kubectl edit pvc pv-volume --record
NEW QUESTION # 17
Score: 4%
Task
Scale the deployment presentation to 6 pods.
Answer:
Explanation:
Solution:
kubectl get deployment
kubectl scale deployment.apps/presentation --replicas=6
NEW QUESTION # 18
Set the node named ek8s-node-1 as unavailable and reschedule all the pods running on it.
Answer:
Explanation:
NEW QUESTION # 19
Create an nginx pod and load environment values from the above configmap "keyvalcfgmap" and exec into the pod and verify the environment variables and delete the pod
Answer: A
NEW QUESTION # 20
......
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