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Pass Guaranteed Quiz Linux Foundation - Trustable CKS - Cert Certified Kubernetes Security Specialist (CKS) ExamThere is no doubt that obtaining this CKS certification is recognition of their ability so that they can find a better job and gain the social status that they want. Most people are worried that it is not easy to obtain the certification of CKS, so they dare not choose to start. We are willing to appease your troubles and comfort you. We are convinced that our CKS test material can help you solve your problems. Compared to other learning materials, our CKS exam qeustions are of higher quality and can give you access to the CKS certification that you have always dreamed of. Linux Foundation Certified Kubernetes Security Specialist (CKS) Sample Questions (Q30-Q35):NEW QUESTION # 30
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 # 31
You have a Kubernetes cluster with a Deployment named 'secure-app-deployment running a sensitive application. You want to ensure that only authorized users can access the application's pods and its sensitive data.
How would you use Role-Based Access Control (RBAC) to restrict access to the 'secure-app-deployment' and its resources? Answer:
Explanation:
Solution (Step by Step) :
1. Create a Service Account for the Application:
2. Create a Role for the Service Account
NEW QUESTION # 32
You have a Kubernetes cluster running a highly sensitive application. You need to ensure that the application's data is encrypted at rest and in transit. What security measures would you implement to achieve this? Answer:
Explanation:
Solution (Step by Step):
Data Encryption at Rest:
1. Volume Encryption:
- Kubernetes Persistent Volumes (PVs): Use volume encryption on the underlying storage system (e.g., EBS, GCE PD) to encrypt data at rest. This ensures tnat the data stored in the PV is encrypted even if tne underlying volume iS stolen or accessed Without authorization.
- Container Storage Interface (CSI): If using CSI drivers, utilize their volume encryption capabilities (if supported) to encrypt data on the storage volume.
2. Secret Encryptiom
- Kubernetes Secrets: Encrypt sensitive data stored in Secrets using tools like HashiCorp Vault, AWS KMS, or Google Cloud KMS. This prevents unauthorized access to sensitive information like API keys, passwords, and certificates.
Data Encryption in Transit:
1. TLS/SSL:
- Network Communication: Encrypt all network communication using TLS/SSL between pods, services, and external applications. This prevents eavesdropping and data interception.
- Service Mesn: Utilize a service mesh like Istio or Linkerd that automatically enforces TLS/SSL for inter-pod communication. This Simplifies the configuration and management of TLS.
2. Network Policy:
- Restrict Network Access: Implement NetworkPolicy to restrict inbound and outbound traffic to the pods running the sensitive application. This minimizes the attack surface and prevents unauthorized access to the application's network interfaces.
Additional Security Measures:
1. Pod Security Policies (PSP): Use PSPs to restrict the capabilities of pods running the sensitive application. This limits the potential for unauthorized access to the host system or other resources.
2. Security Context: Use the 'securitycontext field for pods to control their security settings. For example, you can set the 'runAslJser' and
'runAsGroups to ensure that the pod runs as a non-root user.
Example Configuration:
Important Notes: - Choose the appropriate encryption solutions based on your cluster environment and security requirements. - Ensure the key management strategy is secure and compliant with your organization's policies. - Regularly audit and review security configurations to maintain a strong security posture.
NEW QUESTION # 33
SIMULATION
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.
A. Send us your feedback on it.
Answer: A
NEW QUESTION # 34
Context
A CIS Benchmark tool was run against the kubeadm-created cluster and found multiple issues that must be addressed immediately.
Task
Fix all issues via configuration and restart the affected components to ensure the new settings take effect.
Fix all of the following violations that were found against the API server:
Fix all of the following violations that were found against the Kubelet:
Fix all of the following violations that were found against etcd: Answer:
Explanation:
NEW QUESTION # 35
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