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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Services & Networking | 20% | - Ingress configuration - Network policies - Services (ClusterIP, NodePort, LoadBalancer) |
| Topic 2: Cluster Architecture, Installation & Configuration | 25% | - Cluster installation and configuration - Kubernetes architecture components - High availability setup |
| Topic 3: Troubleshooting | 30% | - Cluster component troubleshooting - Application and networking debugging |
| Topic 4: Workloads & Scheduling | 15% | - Scheduling constraints - Deployments and rolling updates - ConfigMaps and Secrets |
| Topic 5: Storage | 10% | - PersistentVolumes and PersistentVolumeClaims - Storage classes |
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NEW QUESTION # 28
You are setting up RBAC for a Kubernetes cluster with three namespaces: "development", "staging", and "production". You need to create a role binding that allows developers in the "development" namespace to create deployments, pods, and services, but only within their own namespace.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 Create a Role for Developers:
2. Create a Role Binding for Developers:
3. Replace 'developer-user' with the actual username of a developer. 4. Repeat steps 1-3 for other namespaces ("staging" and "production") with appropriate resource permissions and user names. 5. Verify the RBAC configuration: - Check that the roles and rolebindings are created successfully using 'kubectl get roles' and 'kubectl get rolebindings'. - Test the permissions by creating a pod, deployment, or service as a developer user in their respective namespaces. 6. If you encounter issues, review the configuration carefully, making sure the namespaces, roles, role bindings, and user names are correct.
NEW QUESTION # 29
You are deploying a microservices application on Kubernetes where each service has its own dedicated namespace. You want to implement a robust network security policy that allows communication between specific services only. How can you achieve this using NetworkPolicies?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define Network Policies for Each Service:
- For each service, create a NetworkPolicy that defines the allowed ingress and egress traffic.
- Example for service "service-A":
2. Apply Network Policies: - Apply the NetworkPolicies to the respective namespaces using 'kubectl apply -f networkpolicy.yaml'
NEW QUESTION # 30
Scale the deployment webserver to 6 pods.
Answer:
Explanation:
NEW QUESTION # 31
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 # 32
Get list of PVs and order by size and write to file "/opt/pvstorage.txt"
Answer:
Explanation:
kubectl get pv --sort-by=.spec.capacity.storage > /opt/pv storage.txt
NEW QUESTION # 33
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