CKS Certified Kubernetes Security Specialist Exam Topics and Questions
These Linux Foundation Certified Kubernetes Security Specialist (CKS) exam topics are organized according to official exam domains to help candidates quickly verify coverage and focus on assessment rather than theory. Each domain is paired with topic-wise CKS sample questions that reflect how objectives are tested in the actual exam. This structure enables efficient review, targeted self-assessment, and rapid identification of weak areas when preparing for the Linux Foundation Certified Kubernetes Security Specialist certification exam.
Let's Practice Free Linux Foundation CKS Questions Aligned with Official Exam Topics
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Updated
21 Aug, 2026
6 Topics
Topic Content
Cluster Setup encompasses implementing network security policies to restrict access at the cluster level, utilizing CIS benchmarks to evaluate and validate the security configuration of critical Kubernetes components including etcd, kubelet, kubedns, and kubeapi. It involves properly configuring Ingress objects with appropriate security controls to manage external traffic safely, while protecting sensitive node metadata and endpoints from unauthorized access. Additionally, this topic covers minimizing reliance on and restricting access to graphical user interface elements to reduce potential attack surfaces, and...
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Sample Questions for
Topic 1 : Cluster Setup
Q1
Create a RuntimeClass named gvisor-rc using the prepared runtime handler named runsc.
Create a Pods of image Nginx in the Namespace server to run on the gVisor runtime class
Topic Content
Cluster Hardening encompasses securing Kubernetes environments through multiple critical practices. First, restrict access to the Kubernetes API by implementing network policies and authentication mechanisms to prevent unauthorized connections. Second, implement Role Based Access Control RBAC to limit user and service permissions to only what is necessary, thereby minimizing the attack surface and exposure to potential threats. Third, exercise caution when managing service accounts by disabling default service accounts that are not in use and assigning minimal required permissions to newly...
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Sample Questions for
Topic 2 : Cluster Hardening
Q2
Create a RuntimeClass named untrusted using the prepared runtime handler named runsc.
Create a Pods of image alpine:3.13.2 in the Namespace default to run on the gVisor runtime class.
Topic Content
System Hardening encompasses the strategic reduction of vulnerabilities and potential attack vectors within computing environments. This involves minimizing the host operating system footprint by removing unnecessary services, applications, and features to decrease the overall attack surface available to potential threats. Identity and Access Management IAM roles should be carefully configured and limited to only those permissions absolutely required for legitimate operations, following the principle of least privilege. External network access must be restricted and controlled through proper firewall configurations, network...
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Topic Content
Securing microservices in Kubernetes environments requires implementing multiple layers of protection to reduce vulnerabilities and prevent unauthorized access. This includes establishing OS-level security boundaries through Pod Security Policies PSP, Open Policy Agent OPA, and security contexts to enforce strict access controls and resource limitations. Proper management of Kubernetes secrets ensures sensitive data such as credentials and API keys are encrypted and securely stored rather than exposed in configuration files. In multi-tenant environments, container runtime sandboxes like gVisor and Kata Containers...
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Topic Content
Supply Chain Security encompasses critical practices for protecting containerized environments throughout the software delivery pipeline. Organizations should minimize base image footprint to reduce attack surface and potential vulnerabilities. Implementing a secure supply chain requires whitelisting allowed registries and establishing image signing and validation mechanisms to ensure only trusted images are deployed. Static analysis tools should be applied to user workloads including Kubernetes resources and Dockerfiles to identify misconfigurations and security issues before deployment. Regular vulnerability scanning of container images against...
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Topic Content
Monitoring, Logging and Runtime Security encompasses the implementation of behavioral analytics to examine syscall, process, and file activities across host and container environments for identifying malicious behavior. This domain requires the ability to detect threats spanning physical infrastructure, applications, networks, data, users, and workloads while maintaining visibility across all attack phases regardless of origin or propagation method. Practitioners must conduct deep analytical investigations to identify and isolate malicious actors within their operational environment. Additionally, this area covers the enforcement of...
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