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| Section | Weight | Objectives |
|---|---|---|
| Workloads & Scheduling | 15% | - Pod scheduling: node selector, affinity, taints/tolerations - Deployments, rolling updates and rollbacks - Pod lifecycle, init containers, probes - Resource requests, limits and autoscaling - Configure applications with ConfigMaps and Secrets |
| Cluster Architecture, Installation & Configuration | 25% | - Manage cluster lifecycle and upgrades - Implement high availability control plane - Create and manage clusters with kubeadm - Work with CRDs and Operators - Prepare infrastructure for cluster installation - Manage RBAC - Install components via Helm / Kustomize - Understand CNI, CSI, CRI interfaces |
| Services & Networking | 20% | - CoreDNS and service discovery - Ingress resources and controllers - Service types: ClusterIP, NodePort, LoadBalancer, ExternalName - CNI configuration and troubleshooting - Network policies |
| Troubleshooting | 30% | - Log collection and analysis - Control plane component failures - Pod and application failures - Worker node issues and recovery - Network connectivity and DNS resolution problems - Cluster component health checks |
| Storage | 10% | - StorageClasses and dynamic provisioning - Volume types and access modes - Persistent Volumes (PV) and Persistent Volume Claims (PVC) - StatefulSet storage configuration |
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NEW QUESTION # 41
Create a redis pod, and have it use a non-persistent storage
Note: In exam, you will have access to kubernetes.io site,
Refer : https://kubernetes.io/docs/tasks/configure-pod-container/configurevolume-storage/
Answer: A
NEW QUESTION # 42
Resume the rollout of the deployment
Answer:
Explanation:
kubectl rollout resume deploy webapp
NEW QUESTION # 43
You have a Deployment named 'redis-deployment' running a Redis server. You need to configure Redis with a specific configuration file stored in a ConfigMap named 'redis-config'. The configuration file includes sensitive information like the Redis password. How do you ensure that the sensitive information remains secure while still being accessible to the Redis container?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create the ConfigMap:
- Create a ConfigMap named 'redis-config' containing the Redis configuration file (e.g., 'redis.conf). This configuration file might contain the password as a plain-text value.
- Use 'kubectl create configmap' with the '-from-file' flag:
kubectl create configmap redis-config --from-file=redis.conf
2. Use a Secret for Sensitive Data:
- Create a Secret named 'redis-password' to store the Redis password securely. Use 'kubectl create secret generic' with '--from-literal' kubectl create secret generic redis-password --from-literal=redis-password="your_redis_password"
3. Modify the ConfigMap:
- Modify the 'redis-config' ConfigMap by replacing the plain-text password in the 'redis.conf' with a placeholder or environment variable reference. This is done to prevent the password from being exposed in plain text within the ConfigMap. For example:
kubectl patch configmap redis-config -p '{"data": {"redis.conf': "requirepass ${REDIS PASSWORD}"}}'
4. Configure the Deployment:
- Modify the 'redis-deployment' Deployment to mount both the 'redis-config' ConfigMap and 'redis-password' Secret as volumes in the Pod template.
- Use 'volumeMountS to specify the mount paths and 'volumes' to define the volume sources:
5. Apply the Changes: - Apply the modified Deployment YAML using 'kubectl apply -f redis-deployment.yaml' 6. Verify the Configuration: - Verify that the Redis container is using the secure password from the Secret by accessing the Redis instance and attempting to authenticate.
NEW QUESTION # 44
List all persistent volumes sorted bycapacity, saving the fullkubectloutput to
/opt/KUCC00102/volume_list. Usekubectl 's own functionality forsorting the output, and do not manipulate it any further.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 45
You have a Kubernetes cluster with a multi-tenant setup where different teams manage their own applications. You need to enforce a policy where only developers from the "engineering" team can create deployments for applications within the "dev" namespace. How would you implement this using RBAC?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
Step 1: Create a Role for the "engineering" team
Step 2: Create a RoleBinding to assign the role to the "engineering" team
- The Role defines the permissions for the "engineering" team, allowing them to create deployments in the "dev" namespace. - The RoleBinding associates the "engineering-role" with the user "john.doe@example.com" (representing a developer from the "engineering" team). Step 3: Validate the setup - A developer from the "engineering" team should be able to create deployments in the "dev" namespace. - Other users or teams without the appropriate permissions should be prevented from creating deployments in the "dev" namespace.
NEW QUESTION # 46
......
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