100% Pass Quiz 2026 Trustable CKS: Certified Kubernetes Security Specialist (CKS) New Test Camp

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The Certified Kubernetes Security Specialist (CKS) certification exam is a program offered by the Linux Foundation, which is designed to test the expertise of professionals in securing Kubernetes platforms. The CKS exam is an advanced-level certification, which requires the candidates to have a deep understanding of Kubernetes security and the ability to implement security best practices in a real-world environment. The CKS certification is recognized globally and is highly valued by employers and organizations.

Linux Foundation CKS (Certified Kubernetes Security Specialist) Exam is a certification program that validates an individual's knowledge and skills in securing containerized applications and Kubernetes environments. Certified Kubernetes Security Specialist (CKS) certification is designed for professionals who work with Kubernetes on a daily basis and are responsible for securing the cluster and its components. The CKS Exam Tests the candidates' knowledge of Kubernetes security features, best practices, and common vulnerabilities. Certified Kubernetes Security Specialist (CKS) certification is ideal for security professionals, DevOps engineers, system administrators, and developers who want to enhance their skills in securing Kubernetes clusters.

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CKS New Test Camp - 2026 First-grade Linux Foundation Practice CKS Tests

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The CKS Certification is a valuable asset for professionals seeking to advance their careers in the field of Kubernetes security. Certified Kubernetes Security Specialist (CKS) certification exam is an industry-recognized credential that demonstrates the candidate's proficiency in securing containerized applications and Kubernetes platforms. Certified Kubernetes Security Specialist (CKS) certification is also a testament to the candidate's commitment to continuous learning and professional development.

Linux Foundation Certified Kubernetes Security Specialist (CKS) Sample Questions (Q61-Q66):

NEW QUESTION # 61
Using the runtime detection tool Falco, Analyse the container behavior for at least 30 seconds, using filters that detect newly spawning and executing processes

A. store the incident file art /opt/falco-incident.txt, containing the detected incidents. one per line, in the format

Answer: A

Explanation:
[timestamp],[uid],[user-name],[processName]

NEW QUESTION # 62
You are setting up a Kubernetes cluster that requires strong security measures. You need to implement several security best practices, including.
- Pod Security Policy: Implement a default Pod Security Policy that restricts resource requests, limits privilege escalation, and disables container root access.
- Network Policy: Configure network policies to restrict communication between pods within the cluster, enforcing a principle of least privilege.
- Admission Controller: Use the 'PodSecurityPolicys admission controller to enforce the defined Pod Security Policy rules.
How would you set up a secure Kubernetes cluster, including the configuration of a default Pod Security Policy, network policies, and the 'PodSecuntyP01icy' admission controller, to enforce these security best practices?

Answer:

Explanation:
Solution (Step by Step) :
1. Create a Default Pod Security Policy:
- Create a YAML file named 'psp.yaml' with the following content:

2. Create Network Policies: - Create separate YAML files for each network policy you need. - For example, a policy to restrict communication between pods in the 'frontend' and 'backend' namespaces could be defined as:

3. Enable the 'PodSecurityPolicy' Admission Controller: - Modify the Kubernetes API server configuration (e.g., vetc'kubernetes/manifests/kube-apiserver.yaml') to enable the 'PodSecurityPolicy' admission controller: - Add the following line: '--admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,PodSecurityPolicy' 4. Apply the Configuration: - Apply the 'psp.yaml' and network policy files to the cluster using 'kubectl apply -f -yamr - Restart the Kubernetes API server for the changes to take effect. 5. Test the Configuration: - Try to create a pod that violates the Pod Security Policy rules. - You should see an error message indicating that the PodSecurityPolicy is preventing the pod creatiom - Test the network policies by attempting to communicate between pods and verifying that traffic is restricted according to the defined rules. 6. Monitor and Adjust - Monitor the cluster for any potential issues caused by the security policies. - Adjust the policies as needed based on evolving security requirements and application needs. Note: It's recommended to use a tool like 'kubectl apply -f -s to pipe the content of the YAML files to the command for applying the resources.

NEW QUESTION # 63
Explain the role of security contexts in Kubernetes and how you would use them to mitigate potential security risks associated with container images.

Answer:

Explanation:
Solution (Step by Step) :
1. understanding Security Contexts:
- Security Contexts in Kubernetes define the security attributes of a container, controlling its access to system resources and capabilities. They allow
you to enforce security policies and mitigate risks related to container images.
2. Key Security Context Settings:
- runASUser: Specifies the user ID under which the container will run. This can restrict access to files and resources that the container user might not need.
- runAsGroup: Similar to 'runAsUser, but for the group ID.
- fsGroup: Controls file system permissions. By setting this, you can grant specific access to certain files and directories.
- readOnlyRootFilesystem: Prevents the container from modifying the root file system
- privileged: Grants the container full root privileges. It should be avoided whenever possible.
- allowPfivilegeEscalatiom Controls whether the container can elevate its privileges.
- capabilities: Defines the Linux capabilities that the container is allowed to use. This can restrict access to specific system resources and operations.
- seLinuxOptions: Controls the benavior of the containers SELinux context. This can be used to enforce additional security policies based on SELinux.
3. Using Security Contexts for Image Security:
- Restricting Privileges: Set 'runAsUser', 'runAsGroup', 'privileged' , and 'allowPrivilegeEscalation' to limit the privileges of a container.
- Controlling File System Access: Utilize 'tsGroup' and readOnlyRootFilesystem' to restrict the containers ability to modify files and directories, minimizing the impact of potential vulnerabilities.
- Limiting Capabilities: Use the 'capabilities' field to selectively enable only the capabilities that the container needs to run. This can prevent malicious
code from accessing sensitive system resources.
- Enforcing SELinux Policies: Configure 'seLinuxOptionS to enforce stricter security policies that are aligned with your overall security requirements.
4. Example Security Context in Deployment YAML:

5. Best Practices: - Least Privilege Principle: Apply the least privilege principle to security contexts. Only grant containers the resources and capabilities they require. - Security Context Constraints: Define security context constraints (SCC) tor your cluster. SCCS entorce security policies across all pods. - Regular Auditing: Periodically review and adjust security context settings to ensure they align with your evolving security requirements. - Consider Security Tools: Use tools like Kubernetes Security Posture Management (KSPM) and security scanning solutions to help enforce and monitor security context configurations.

NEW QUESTION # 64
You must complete this task on the following cluster/nodes: Cluster: immutable-cluster Master node: master1 Worker node: worker1 You can switch the cluster/configuration context using the following command: [desk@cli] $ kubectl config use-context immutable-cluster Context: It is best practice to design containers to be stateless and immutable. Task: Inspect Pods running in namespace prod and delete any Pod that is either not stateless or not immutable. Use the following strict interpretation of stateless and immutable: 1. Pods being able to store data inside containers must be treated as not stateless. Note: You don't have to worry whether data is actually stored inside containers or not already. 2. Pods being configured to be privileged in any way must be treated as potentially not stateless or not immutable.

Answer:

Explanation:

Reference: https://kubernetes.io/docs/concepts/policy/pod-security-policy/ https://cloud.google.com/architecture/best-practices-for-operating-containers

NEW QUESTION # 65
Context
This cluster uses containerd as CRI runtime.
Containerd's default runtime handler is runc. Containerd has been prepared to support an additional runtime handler, runsc (gVisor).
Task
Create a RuntimeClass named sandboxed using the prepared runtime handler named runsc.
Update all Pods in the namespace server to run on gVisor.