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| Section | Weight | Objectives |
|---|---|---|
| Services & Networking | 20% | - Ingress resources and controllers - CNI configuration and troubleshooting - Network policies - CoreDNS and service discovery - Service types: ClusterIP, NodePort, LoadBalancer, ExternalName |
| Storage | 10% | - StatefulSet storage configuration - Persistent Volumes (PV) and Persistent Volume Claims (PVC) - StorageClasses and dynamic provisioning - Volume types and access modes |
| Troubleshooting | 30% | - Pod and application failures - Worker node issues and recovery - Network connectivity and DNS resolution problems - Control plane component failures - Log collection and analysis - Cluster component health checks |
| Cluster Architecture, Installation & Configuration | 25% | - Manage RBAC - Create and manage clusters with kubeadm - Install components via Helm / Kustomize - Manage cluster lifecycle and upgrades - Implement high availability control plane - Work with CRDs and Operators - Prepare infrastructure for cluster installation - Understand CNI, CSI, CRI interfaces |
| Workloads & Scheduling | 15% | - Deployments, rolling updates and rollbacks - Pod lifecycle, init containers, probes - Resource requests, limits and autoscaling - Configure applications with ConfigMaps and Secrets - Pod scheduling: node selector, affinity, taints/tolerations |
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NEW QUESTION # 63
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 # 64
Check the history of deployment
Answer:
Explanation:
kubectl rollout history deployment webapp
NEW QUESTION # 65
You are running an application that is highly sensitive and requires strict access control. You need to configure the service to allow access only from a specific pod in the same namespace.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a NetworkPolicy:
- Define a NetworkPolicy that allows access from the specific pod to the service.
2. Apply the NetworkPolicy: - Apply the YAML file using 'kubectl apply -f networkpolicy.yaml'. 3. Verify the NetworkPolicy: - Check the status of the NetworkPolicy using 'kubectl get networkpolicies allow-specific-pod -n 4. Test the Access: - Attempt to access the service from the 'allowed-pod'. You should be able to access it. - Attempt to access the service from other pods in the same namespace. You should not be able to access it. Note: Replace " with the actual namespace where your service and allowed pod are located.
NEW QUESTION # 66
Score: 5%
Task
Monitor the logs of pod bar and:
* Extract log lines corresponding to error file-not-found
* Write them to /opt/KUTR00101/bar
Answer:
Explanation:
Solution:
kubectl logs bar | grep 'unable-to-access-website' > /opt/KUTR00101/bar cat /opt/KUTR00101/bar
NEW QUESTION # 67
You are tasked with securing a Kubernetes cluster by implementing RBAC. Your cluster has two namespaces: 'dev' and 'prod'. You need to create a role that allows users in the 'dev' namespace to create, delete, and list deployments, but only read-only access to deployments in the 'prod' namespace. Additionally, these users should have access to create and manage ConfigMaps within both namespaces.
Create the necessary RBAC resources (Role, RoleBinding) to implement this access control policy.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
Step 1: Create a Role for the 'dev' namespace.
Step 2: Create a Role for the 'prod' namespace.
Step 3: Create a RoleBinding in the 'dev' namespace.
Step 4: Create a RoleBinding in the 'prod' namespace.
Step 5: Apply the YAML files to the cluster.
Now, the 'dev-user' can create, delete, and list deployments within the 'dev' namespace. They can only view deployments in the 'prod' namespace. They can also create and manage ConfigMaps in both namespaces.
NEW QUESTION # 68
......
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