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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Minimize Microservice Vulnerabilities | 20% | - Security contexts - OPA/Gatekeeper implementation - Isolation & multi-tenancy - Pod Security Standards - Secret management |
| Topic 2: Supply Chain Security | 20% | - Permitted registries - Signed artifacts & verification - Image security & scanning - Static analysis tools - SBOM & CI/CD security |
| Topic 3: System Hardening | 10% | - Kernel hardening (AppArmor, seccomp) - Least privilege IAM - Network access control - Minimize OS attack surface |
| Topic 4: Monitoring, Logging and Runtime Security | 20% | - Incident investigation - Behavioral analytics - Audit log configuration - Container immutability - Threat detection (Falco) |
| Topic 5: Cluster Setup | 15% | - Node metadata protection - Network security policies - Binary verification - CIS benchmark compliance - Secure Ingress configuration |
| Topic 6: Cluster Hardening | 15% | - API access restriction - Service account security - Component updates & vulnerability mitigation - RBAC configuration |
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NEW QUESTION # 13
Your organization has a policy requiring all Kubernetes deployments to utilize Pod Security Policies (PSPs) to enforce security best practices. You're responsible for creating a PSP that enforces the following:
- Only allows containers with a specific security context (privileged: false, runAsUser: 1000, readOnlyRootFilesystem: true)
- Restricts access to most resources by denying the 'hostPort and 'hostNetwork' capabilities.
- Prohibits the use of privileged containers.
Implement the required PSP configuration
Answer:
Explanation:
Solution (Step by Step) :
1. Create a PodSecurityPolicy:
- Define a PodSecurityP01icy named 'secure-policy' that enforces the specified security restrictions.
2. Create a PodSecurityPolicy8inding: - Bind the 'secure-policy' to a namespace or specific deployments. - This ensures that the PSP is enforced for deployments Within the bound scope.
3. Deploy the PSP: - Apply the 'secure-policy.yaml and 'secure-policy-binding.yaml files to the cluster - This will activate the PSP and enforce the defined security rules. 4. Validate PSP Enforcement - Attempt to create a deployment that violates the PSP rules. - Verifry that the deployment creation fails due to the PSP enforcement.
NEW QUESTION # 14
You are working on a Kubernetes cluster that hosts a critical microservices application. You have identified that the application is vulnerable to a known attack vector through a specific service called "payment-service." You need to quickly implement a security measure to mitigate this attack vector while minimizing the impact on other services.
How can you use a network policy to isolate the "payment-service" from the rest of the cluster and prevent the attack without disrupting the normal functioning of other microservices?
Answer:
Explanation:
Solution (Step by Step) :
1. Identify the specific traffic flows:
- Analyze the network traffic of the "payment-service" to understand the communication patterns it uses.
- Determine which services are essential for the "payment-service" to operate correctly.
- Identify the specific ports and protocols used by the "payment-service" to communicate with those services.
2. Define the network policy:
- Create a network policy specifically for the "payment-service."
- Allow only the necessary traffic flows to and from the "payment-service."
- Block any other traffic, including potential attack vectors.
3. Deploy and test the policy:
- Apply the network policy to the cluster.
- Monitor the "payment-service" closely to ensure it continues to operate correctly.
- Test the policy with simulated attacks to confirm its effectiveness.
Example Network Policy:
This policy allows the "payment-service" to communicate only With "order-service" and "database" services while blocking all other traffic. This allows the service to continue operating normally while isolating it from the rest of the cluster and mitigating the potential attack vector.
NEW QUESTION # 15
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 # 16
You are deploying a Kubernetes cluster on AWS using EKS. verify the authenticity and integrity of the AWS CLI and EKS platform binaries before interacting with your cluster:
Answer:
Explanation:
Solution (Step by Step):
I). Install the AWS CLI: Download and install the AWS CLI from the official website ([https://aws.amazon.com/clif](https://www.google.com/url?
sa=E&source=gmail&q=https://aws.amazon.com/cli/)).
2. Verify the AWS CLI installation: Use the aws -version' command to check the version and ensure it is installed correctly.
3. Configure AWS credentials: Configure your AWS credentials using the saws configure' command.
4. Verify the EKS API server endpoint: Use the 'aws eks describe-cluster command to retrieve the API server endpoint for your EKS cluster_ Verity
that the endpoint matches the expected format and domain name for your region.
bash
aws ekS describe-cluster -name my-cluster -query "cluster. endpoint" -output text
5. Verify the authenticity of the EKS API server certificate: Retrieve the EKS API server certificate using the 'openssl s_client command and verity the certificate chain and issuer.
bash
openssl s_client -connect :443 /dev/null | openssl x509 -in - -text -noout
6. (Optional) Use the AWS CLI to further validate EKS components: You can use the AWS CLI to check the status and configuration of other EKS components, such as the control plane, worker nodes, and networking.
NEW QUESTION # 17
SIMULATION
Given an existing Pod named nginx-pod running in the namespace test-system, fetch the service-account-name used and put the content in /candidate/KSC00124.txt Create a new Role named dev-test-role in the namespace test-system, which can perform update operations, on resources of type namespaces.
Create a new RoleBinding named dev-test-role-binding, which binds the newly created Role to the Pod's ServiceAccount ( found in the Nginx pod running in namespace test-system).
Answer: A
NEW QUESTION # 18
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