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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage | 10% | - Volume types and access modes - StatefulSet storage configuration - StorageClasses and dynamic provisioning - Persistent Volumes (PV) and Persistent Volume Claims (PVC) |
| Topic 2: Workloads & Scheduling | 15% | - Pod lifecycle, init containers, probes - Configure applications with ConfigMaps and Secrets - Pod scheduling: node selector, affinity, taints/tolerations - Resource requests, limits and autoscaling - Deployments, rolling updates and rollbacks |
| Topic 3: Cluster Architecture, Installation & Configuration | 25% | - Understand CNI, CSI, CRI interfaces - Install components via Helm / Kustomize - Create and manage clusters with kubeadm - Prepare infrastructure for cluster installation - Work with CRDs and Operators - Manage RBAC - Implement high availability control plane - Manage cluster lifecycle and upgrades |
| Topic 4: Troubleshooting | 30% | - Pod and application failures - Cluster component health checks - Log collection and analysis - Worker node issues and recovery - Network connectivity and DNS resolution problems - Control plane component failures |
| Topic 5: Services & Networking | 20% | - Service types: ClusterIP, NodePort, LoadBalancer, ExternalName - CNI configuration and troubleshooting - Network policies - Ingress resources and controllers - CoreDNS and service discovery |
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NEW QUESTION # 76
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.
You can ssh to the failed node using:
[student@node-1] $ | ssh Wk8s-node-0
You can assume elevated privileges on the node with the following command:
[student@w8ks-node-0] $ | sudo -i
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 77
What file type upload is supported as part of the basic WildFire service?
Answer: D
NEW QUESTION # 78
You need to create a new role that allows users to create and delete pods, but only in the
'production' namespace. How would you define this role using the 'kubectl' command?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Role YAML file:
2. Apply the Role to the cluster: kubectl apply -f pod-admin . yaml 3. Create a RoleBinding to associate the Role with a user or group:
The 'Role' resource defines a set of permissions for a specific namespace. The 'rules' field defines the actions allowed for the role, specifying the API groups, resources, and verbs. The 'apiGroups' field lists the Kubernetes API groups relevant to the permissions. The 'resources' field specifies the Kubernetes resources that the user can access. The 'verbs' field lists the allowed actions for the specified resources. The 'RoleBinding' associates the created 'Role' with a specific user or group, granting them the specified permissions. In this case, the role is named "pod-admin" and is scoped to the 'production' namespace. The role allows users to create and delete pods, as well as perform other actions on related resources. This example demonstrates how to manage Role-Based Access Control (RBAC) in Kubernetes. You can adjust the permissions and bindings to fit your specific security requirements.,
NEW QUESTION # 79
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
Finally, using kubectl edit or kubectl patch PersistentVolumeClaim to a capacity of 70Mi and record that change.
Answer:
Explanation:
See the solution below.
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 # 80
List all persistent volumes sorted by capacity, saving the full kubectl output to /opt/KUCC00102/volume_list.
Use kubectl 's own functionality for sorting the output, and do not manipulate it any further.
Answer:
Explanation:
NEW QUESTION # 81
......
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