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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cluster Architecture, Installation & Configuration | 25% | - Understand CNI, CSI, CRI interfaces - Implement high availability control plane - Install components via Helm / Kustomize - Manage cluster lifecycle and upgrades - Work with CRDs and Operators - Create and manage clusters with kubeadm - Prepare infrastructure for cluster installation - Manage RBAC |
| Topic 2: Troubleshooting | 30% | - Worker node issues and recovery - Network connectivity and DNS resolution problems - Log collection and analysis - Pod and application failures - Control plane component failures - Cluster component health checks |
| Topic 3: Services & Networking | 20% | - CoreDNS and service discovery - Network policies - CNI configuration and troubleshooting - Service types: ClusterIP, NodePort, LoadBalancer, ExternalName - Ingress resources and controllers |
| Topic 4: Storage | 10% | - Volume types and access modes - Persistent Volumes (PV) and Persistent Volume Claims (PVC) - StorageClasses and dynamic provisioning - StatefulSet storage configuration |
| Topic 5: Workloads & Scheduling | 15% | - Configure applications with ConfigMaps and Secrets - Pod lifecycle, init containers, probes - Pod scheduling: node selector, affinity, taints/tolerations - Resource requests, limits and autoscaling - Deployments, rolling updates and rollbacks |
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NEW QUESTION # 14
Create a pod as follows:
* Name: mongo
* Using Image: mongo
* In a new Kubernetes namespace named
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 15
You are managing a Kubernetes cluster with a very specific RBAC setup.
- Users in the "engineering" group can create Pods in the "dev" namespace, but only if the Pod's name starts with "frontend".
- Users in the "security" group can view events in the "prod" namespace, but only if the event's reason is "Failed".
Create a YAML file to define a custom resource and define its permissions for the "engineering" and "security" groups.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 Create the "dev" and "prod" namespaces:
kubectl create namespace dev
kubectl create namespace prod
2. Define a Custom Resource Definition (CRD) for "pod-events":
3. Define the "engineering-pod-creation" role:
4. Create the "engineering-pod-creation" role binding:
5. Define the "security-event-view" role:
6. Create the "security-event-view" role binding:
7. Apply the YAML file to the cluster: kubectl apply -f rbac-config.yaml
NEW QUESTION # 16
You need to expose a service with multiple endpoints, each serving a specific path, using a single Ingress resource. Each endpoint is running on a different port, and you want to configure SSL termination for the entire Ingress. How would you achieve this?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define the Ingress Resource:
- Create an Ingress resource with the desired host and paths for each endpoint.
- Example:
- This configuration defines the host "example.com" and two paths: "/api" routed to "api-service" on port 8080 and "[blog" routed to "blog-service" on port 8081. 2. Create the TLS Secret: - Create a Secret containing your SSL certificate and private key for the domain "example.com". - Example:
- Replace " and with the actual content of your SSL certificate and private key. 3. Deploy the Services: - Ensure that the services "api-service" and "blog-service" are deployed and accessible on their respective ports (8080 and 8081 4. Apply the Ingress Configuration: - Apply the Ingress configuration using 'kubectl apply -f multiple-endpoints-ingress.yamP. 5. Verify the Ingress: - Access the Ingress using the defined host "example.com". - Check that requests to "/api" are routed to the "api-service" and requests to "[blog" are routed to the "blog- service", with SSL termination working as expected.
NEW QUESTION # 17
You have a Kubernetes cluster with a deployment named 'nginx-deployment' in the 'default' namespace. This deployment uses a container image 'nginx:latest'.
You want to define an admission webhook that enforces a policy to prevent deployments from using 'nginx:latest' and instead forces the use of a specific versioned image like 'nginx:l .20.1'. Create the webhook configuration and admission controller code that implements this policy.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Create a Webhook Configuration:
2. Create a Service for the Admission Webhook:
3. Create the Admission Controller Code: Example in Go:
4. Build and Deploy the Admission Controller: Build the Go code. Deploy the admission controller as a container in the Kubernetes cluster. Create the Service for the webhook. Create the WebhookConfiguration with the correct CA bundle for the admission controller. The webhook configuration defines the rules for the admission controller, including the resources, operations, and failure policy. The admission controller code handles the validation of the deployment object. It checks the image name and rejects deployments that use the 'nginx:latest' image. The Service exposes the admission controller to the Kubernetes API. The CA bundle is used to secure communication between the webhook and the Kubernetes API. Note: Replace with the actual CA bundle data. The admission controller code should be deployed and configured according to your specific environment and needs.,
NEW QUESTION # 18
Score: 4%
Context
You have been asked to create a new ClusterRole for a deployment pipeline and bind it to a specific ServiceAccount scoped to a specific namespace.
Task
Create a new ClusterRole named deployment-clusterrole, which only allows to create the following resource types:
* Deployment
* StatefulSet
* DaemonSet
Create a new ServiceAccount named cicd-token in the existing namespace app-team1.
Bind the new ClusterRole deployment-clusterrole lo the new ServiceAccount cicd-token , limited to the namespace app-team1.
Answer:
Explanation:
Solution:
Task should be complete on node k8s -1 master, 2 worker for this connect use command
[student@node-1] > ssh k8s
kubectl create clusterrole deployment-clusterrole --verb=create --resource=deployments,statefulsets, daemonsets kubectl create serviceaccount cicd-token --namespace=app-team1 kubectl create rolebinding deployment-clusterrole --clusterrole=deployment-clusterrole -- serviceaccount=default:cicd-token --namespace=app-team1
NEW QUESTION # 19
......
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