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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cluster Setup | 15% | - Secure installation configuration - Hardening cluster components |
| Topic 2: Supply Chain Security | 20% | - Secure CI/CD practices - Image scanning and verification |
| Topic 3: Minimizing Microservice Vulnerabilities | 20% | - Container isolation and security contexts - Pod security standards |
| Topic 4: System Hardening | 15% | - Host security controls - Kernel and node security configuration |
| Topic 5: Cluster Hardening | 15% | - API server security - Authentication and authorization |
| Topic 6: Monitoring, Logging and Runtime Security | 15% | - Audit logging and monitoring - Runtime threat detection |
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NEW QUESTION # 65
You are managing a Kubernetes cluster With several applications running within pods. Your security policy mandates that all pods should run with the 'privileged' flag set to 'false' , while allowing a few pods to run with privileged access for specific tasks. How would you implement this policy by leveraging the Kubernetes security best practices?
Answer:
Explanation:
Solution (Step by Step) :
1. Create a Security Context Constraint (SCC): Create a new SCC named 'non-privileged-sce with the following configuration:
- 'allowPrivilegeEscalation': 'false' (Prevents pods from elevating privileges even if they run with privileged containers)
- 'privileged': 'false' (Disallows containers from running with privileged access)
- 'runAsLJser': ' 1000' (Assigns a specific non-root user ID for containers)
- 'readOnlyRootFilesystem': 'true' (Prevents containers from modifying the host's root filesystem)
- 'seccompProfile': 'localhost/unconfined' (Specifies a seccomp profile for restricting system calls)
2. Apply the SCC: Apply the SCC using 'kuoectl apply -f non-privileged-scc.yaml 3. Create a Second SCC for Privileged Pods: Create a new SCC named 'privileged-sce with the following configuratiom - 'allowPrivilegeEscalation': 'trues - 'privileged': 'true' - 'runAsuser': - 'readOnlyRootFilesystem': 'false' - 'seccompprofile': 'localhost/unconfined'
4. Apply the Privileged SCC: Apply the SCC using 'kubectl apply -f privileged-scc.yaml 5. Update Your Deployment Configurations: - For deployments requiring privileged access, include 'securityContext.securityContextConstraints: privileged-sce within the pod specification. - For all other deployments, include 'securityContext.securityContextConstraints: non-prjvileged-scc' within the pod specification.
6. Restrict Access to SCCs: You can funer enhance security by configuring which users or service accounts can use each SCC. This can be done by using Role-Based Access Control (RBAC) to grant permissions to specific user accounts or service accounts for the SCCs.
This approach ensures that the majority of pods operate with minimal privileges, enhancing security, while allowing a few essential deployments to run with elevated access. Remember to constantly review and update your security policies as your cluster and applications evolve.
NEW QUESTION # 66
Your organization runs a Kubemetes cluster with sensitive dat
a. You want to implement a comprehensive security strategy that involves both Kubernetes features and external security tools. Describe the security best practices and tools you would use to secure the cluster and its applications.
Answer:
Explanation:
Solution (Step by Step) :
1. Kubernetes Security Best Practices:
- Namespaces Use namespaces to isolate applications and prevent cross-contamination
- Pod Security Policies (PSPs): Implement PSPs to restrict capabilities and resources for pods.
- Network Policies: Define network policies to control communication between pods and limit external access.
- RBAC (Role-Based Access Control): Use RBAC to control access to cluster resources based on roles and permissions.
- Service Accounts: Create service accounts with limited privileges for each application.
- Resource Quotas Set resource quotas to limit resource consumption and prevent one application from impacting others.
- Pod Disruption Budgets (PDBs): Ensure availability and resilience by setting up PDBs.
- Security Context: use security context to configure pod security settings at the pod level.
- Least Privilege: Follow the principle of least privilege, granting only the necessary permissions to applications.
2. External Security Tools:
- Vulnerability Scanners: Use vulnerability scanners like Aqua Security, Snyk, and Anchore to identify and remediate vulnerabilities in containers and applications.
- Container Security Platforms: Implement container security platforms like Twistlock, Aqua Security, and Docker Security Scanning for comprehensive
security analysis and runtime protection.
- Network Security Monitoring: Use network security monitoring tools like Wireshark, tcpdump, and Zeek to monitor network traffic for suspicious activity.
- Security Information and Event Management (SIEM): Deploy a SIEM solution like Splunk, Elasticsearch, or Graylog to centralize security logs and
events, enabling real-time threat detection and incident response.
- Intrusion Detection Systems (IDS): Use IDS solutions like Suricata, Snort, and Bro to detect malicious activity within the cluster network.
- Security Orcnestration and Automation (SOAR): Implement SOAR tools like Phantom, Demisto, and ServiceNow to automate security tasks, incident
response, and threat hunting.
3. Other Security Considerations:
- Encryption at Rest: Encrypt sensitive data stored within the cluster, including databases, persistent volumes, and configuration files.
- Encryption in Transit use TLS/SSL to secure communication between cluster components and external services.
- Regular Security Audits: Conduct regular security audits to identity and remediate potential vulnerabilities and ensure that security controls are effective.
- Penetration Testing: Perform penetration testing to evaluate the security posture of the cluster and applications from an attackers perspective.
- Incident Response Planning: Develop a comprehensive incident response plan to handle security incidents efficiently and effectively.
By implementing these security best practices and using a combination of Kubernetes features and external security tools, you can create a more secure and resilient Kubernetes environment to protect sensitive data and applications.
NEW QUESTION # 67
Service is running on port 389 inside the system, find the process-id of the process, and stores the names of all the open-files inside the /candidate/KH77539/files.txt, and also delete the binary.
Answer: A
NEW QUESTION # 68
Secrets stored in the etcd is not secure at rest, you can use the etcdctl command utility to find the secret value for e.g:-
Answer: A
Explanation:
Output
Using the Encryption Configuration, Create the manifest, which secures the resource secrets using the provider AES-CBC and identity, to encrypt the secret-data at rest and ensure all secrets are encrypted with the new configuration.
NEW QUESTION # 69
You have a Kubernetes cluster with a Deployment running a web application. The application relies on a third-party library that was recently discovered to have a critical security vulnerability. You need to patch the vulnerability by updating the container image with the latest version of the library. However, you are not allowed to rebuild the entire image due to strict image size constraints.
Answer:
Explanation:
Solution (Step by Step) :
1. Identify the Vulnerable Library:
- Determine the specific third-party library that has the vulnerability.
2. Patch the Library in a Sidecar Container:
- Create a new container image that only contains the patched version of the vulnerable library.
- Add a sidecar container to your Deployment YAML that runs the patched library container.
- Ensure that the sidecar container is configured to run alongside the main application container.
3. Update the Deployment - Apply the updated Deployment YAML to your Kubernetes cluster. - The sidecar container will be deployed alongside the main application container, effectively patching the vulnerability without rebuilding the entire application image.
NEW QUESTION # 70
......
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2026 Latest ValidVCE CKS PDF Dumps and CKS Exam Engine Free Share: https://drive.google.com/open?id=1gAc8cmrEdusMDXOl-z2YQ6gQo7FpspfJ