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Linux Foundation Certified Kubernetes Security Specialist (CKS)

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Linux Foundation Certified Kubernetes Security Specialist (CKS) Exam Voucher

The CKS exam ensures candidates can effectively secure Kubernetes environments across the full lifecycle—from code to runtime—equipping professionals with the expertise needed to protect containerized applications in production.

Certification Name: Certified Kubernetes Security Specialist (CKS)
Administered By: The Linux Foundation
Exam Format: Online, proctored, performance-based exam
Duration: 2 hours
Languages: Primarily English
Prerequisites: Active Certified Kubernetes Administrator (CKA) certification

Exam Objectives:
The CKS exam is designed to validate the skills required to secure container-based applications and Kubernetes platforms during build, deployment, and runtime. It focuses on practical, hands-on tasks based on real-world scenarios that Kubernetes security professionals are likely to face.

  • Cluster Setup (10%): Focuses on securing a Kubernetes cluster, including TLS certificates, API server configuration, RBAC policies, and secrets management.

  • Cluster Hardening (15%): Covers security contexts, Pod Security Standards, network policies, and minimizing attack surfaces.

  • System Hardening (15%): Involves Linux security mechanisms such as AppArmor, seccomp, and audit logs, as well as OS-level hardening techniques.

  • Minimize Microservice Vulnerabilities (20%): Deals with image scanning, secure base images, and reducing container vulnerabilities during the development phase.

  • Supply Chain Security (20%): Emphasizes software provenance, container signing, and verification using tools like cosign and SLSA frameworks.

  • Monitoring, Logging, and Runtime Security (20%): Includes runtime threat detection, audit logging, behavioral analytics, and monitoring tool integrations.

Platform Choices: Candidates perform tasks in a command-line environment using a live Kubernetes cluster. The exam is distribution-agnostic but assumes familiarity with Kubernetes and Linux security concepts.

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