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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Minimize Microservice Vulnerabilities | 20% | - Isolation & multi-tenancy - Secret management - Pod Security Standards - Security contexts - OPA/Gatekeeper implementation |
| Topic 2: Supply Chain Security | 20% | - Signed artifacts & verification - Permitted registries - Image security & scanning - Static analysis tools - SBOM & CI/CD security |
| Topic 3: Cluster Setup | 15% | - Network security policies - CIS benchmark compliance - Secure Ingress configuration - Node metadata protection - Binary verification |
| Topic 4: Cluster Hardening | 15% | - RBAC configuration - Service account security - API access restriction - Component updates & vulnerability mitigation |
| Topic 5: System Hardening | 10% | - Kernel hardening (AppArmor, seccomp) - Minimize OS attack surface - Network access control - Least privilege IAM |
| Topic 6: Monitoring, Logging and Runtime Security | 20% | - Container immutability - Behavioral analytics - Threat detection (Falco) - Incident investigation - Audit log configuration |
>> CKS Reliable Test Syllabus <<
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NEW QUESTION # 55
You are managing a Kubernetes cluster that uses a private Docker registry for storing container images. You need to secure the registry by restricting access to authorized users and teams. Design a solution using role-based access control (RBAC) to enforce the following policies:
- Developers in the "dev" team should be allowed to push and pull images to the registry.
- Operations team members should only be allowed to pull images.
- Security team members should have read-only access to the registry's metadata
Answer:
Explanation:
Solution (Step by Step) :
1. Create a Service Account for each team:
- Dev Team:
- Operations Team:
- Security Team:
- Apply these ServiceAccount YAML files to the cluster using 'kubectl apply -f sa.yaml'. 2. Create a Role for each team: - Dev Team Role:
- Operations Team Role:
- Security Team Role:
- Apply these Role YAML files to the cluster using 'kubectl apply -f roles-yaml'. 3. Bind the Roles to Service Accounts: - Dev Team:
- Operations Team:
- security Team:
- Apply these RoleBinding YAML files to the cluster using 'kubectl apply -f rolebindings.yamr 4. Configure the Registry: - Ensure that your private Docker registry is configured to authenticate users and teams based on the specified RBAC rules. This may involve using a registry-specific Plugin or configuration file. 5. Test the Setup: - Use the created Service Accounts to access the registry. - Verify that each team nas the expected permissions and limitations. - For example, try pushing an image using the 'dev-sa' account and verify it is successful. Then, attempt to push an image using the Sops-sa- account and verify it is unsuccessful due to the missing permission.
NEW QUESTION # 56
You have a Kubernetes cluster with a Deployment named 'my-app' that exposes a service on port 80. You want to enforce a policy that allows only traffic from pods With a specific label to access this service.
Answer:
Explanation:
Solution (Step by Step) :
1. Create a NetworkPolicy:
- Define a NetworkPolicy resource with a 'podSelector' that matches the 'my-app' Deployment.
- Create an 'ingress' rule that allows traffic only from pods with the specific label.
- Use the 'from' field to specify the label selector.
- Ensure that the port 80 is included in the 'ports' field.
2. Apply the NetworkPolicy: - Apply the YAML file using 'kubectl apply -f my-app-label-policy-yamr 3. Verify the NetworkPolicy: - Use 'kubectl get networkpolicies' to list the available network policies. - Use 'kubectl describe networkpolicy my-app-label-policy' to view the details ot the applied policy. 4. Test the NetworkPolicy: - Deploy a pod with the label 'allowed: true' and attempt to access the service on port 80. Verify that the connection is successful. - Deploy a pod without the label 'allowed: true' and attempt to access the service on port 80. Verify that the connection is denied.
NEW QUESTION # 57
In your Kubernetes cluster, you have a sensitive pod named "sensitive-pod" that you want to isolate from other workloads on the same node. Describe the steps you would take to create a dedicated namespace and restrict the "sensitive-pod" deployment to only run on nodes labeled with a specific label.
Answer:
Explanation:
Solution (Step by Step) :
1. Create a Dedicated Namespace:
- Create a new namespace for the sensitive pod using 'kubectl create namespace sensitive-namespace'
2. Label Nodes:
- Label the nodes where you want the sensitive pod to run with a specific label. For example, label the nodes as 'sensitive=true' using the following command.
bash
kubectl label nodes sensitive-true
- Replace with the actual name of the node you want to label.
3. Create Node Affinity in Deployment:
- Create or update the deployment for "sensitive-pod" with a 'nodeAffinity' rule that restricts the pod to nodes with the 'sensitive=true' label.
4. Deploy the Pod in the New Namespace. - Deploy the "sensitive-pod" deployment into the 'sensitive-namespace' namespace using 'kubectl apply -f sensitive-pod-yaml - The deployment will only be scheduled on nodes with the 'sensitive=true' label.
NEW QUESTION # 58
You have an application running in a Kubernetes cluster that requires access to a database hosted in a different namespace. You want to implement a secure mecnanism to allow the application to access the database witnout granting it access to all resources in the database namespace.
Answer:
Explanation:
Solution (Step by Step) :
1. Create a Service Account in the Application Namespace:
- In the application's namespace, create a service account named 'db-access-sa'
2. Create a Role in the Database Namespace:
- In the database namespace, create a custom role named 'db-access-role' that grants only the required permissions to the database.
- For example, you might grant access to specific database tables, views, or stored procedures.
- Create a custom role named 'db-access-role' in the namespace where your database is running to grant only read permissions to the database.
3. Create a ROIeBinding in the Database Namespace: - In the database namespace, create a role binding named 'db-access-binding' that associates the 'db-access-sa' service account (from the application's namespace) with the 'db-access-role'.
4. Configure Your Application: - Configure your application deployment to use the 'db-access-sa' service account. - Use the Kubernetes API to connect to the database using the provided credentials or secrets.
NEW QUESTION # 59
Create a network policy named restrict-np to restrict to pod nginx-test running in namespace testing.
Only allow the following Pods to connect to Pod nginx-test:-
1. pods in the namespace default
2. pods with label version:v1 in any namespace.
Make sure to apply the network policy.
Answer: A
NEW QUESTION # 60
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