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Linux Foundation KCSA Exam Syllabus Topics:

Topic	Details
Topic 1	Kubernetes Threat Model: This section of the exam measures the skills of a Cloud Security Architect and involves identifying and mitigating potential threats to a Kubernetes cluster. It requires understanding common attack vectors like privilege escalation, denial of service, malicious code execution, and network-based attacks, as well as strategies to protect sensitive data and prevent an attacker from gaining persistence within the environment.
Topic 2	Kubernetes Cluster Component Security: This section of the exam measures the skills of a Kubernetes Administrator and focuses on securing the core components that make up a Kubernetes cluster. It encompasses the security configuration and potential vulnerabilities of essential parts such as the API server, etcd, kubelet, container runtime, and networking elements, ensuring each component is hardened against attacks.
Topic 3	Overview of Cloud Native Security: This section of the exam measures the skills of a Cloud Security Architect and covers the foundational security principles of cloud-native environments. It includes an understanding of the 4Cs security model, the shared responsibility model for cloud infrastructure, common security controls and compliance frameworks, and techniques for isolating resources and securing artifacts like container images and application code.
Topic 4	Kubernetes Security Fundamentals: This section of the exam measures the skills of a Kubernetes Administrator and covers the primary security mechanisms within Kubernetes. This includes implementing pod security standards and admissions, configuring robust authentication and authorization systems like RBAC, managing secrets properly, and using network policies and audit logging to enforce isolation and monitor cluster activity.

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Linux Foundation Kubernetes and Cloud Native Security Associate Sample Questions (Q38-Q43):

NEW QUESTION # 38
Why does the defaultbase64 encodingthat Kubernetes applies to the contents of Secret resources provide inadequate protection?

A. Base64 encoding is vulnerable to brute-force attacks.
B. Base64 encoding is not supported by all Secret Stores.
C. Base64 encoding relies on a shared key which can be easily compromised.
D. Base64 encoding does not encrypt the contents of the Secret, only obfuscates it.

Answer: D

Explanation:
* Kubernetes stores Secret data asbase64-encoded stringsin etcd by default.
* Base64 is not encryption- it is a simple encoding scheme that merelyobfuscatesdata for transport and storage. Anyone with read access to etcd or the Secret manifest can easily decode the value back to plaintext.
* For actual protection, Kubernetes supportsencryption at rest(via encryption providers) and external Secret management (Vault, KMS, etc.).
References:
Kubernetes Documentation - Secrets
CNCF Security Whitepaper - Data protection section: highlights that base64 encoding does not protect data and encryption at rest is recommended.

NEW QUESTION # 39
To restrict the kubelet's rights to the Kubernetes API, whatauthorization modeshould be set on the Kubernetes API server?

A. Webhook
B. kubelet
C. Node
D. AlwaysAllow

Answer: C

Explanation:
* TheNode authorization modeis designed to specifically limit what kubelets can do when they connect to the Kubernetes API server.
* It authorizes requests from kubelets based on the Pods scheduled to run on their nodes, ensuring kubelets cannot interact with resources beyond their scope.
* Incorrect options:
* (B)AlwaysAllowallows unrestricted access (insecure).
* (C) No kubelet authorization mode exists.
* (D)Webhookmode delegates authorization decisions to an external service, not specifically for kubelets.
References:
Kubernetes Documentation - Node Authorization
CNCF Security Whitepaper - Access control: kubelet authorization and Node authorizer.

NEW QUESTION # 40
A user runs a command with kubectl to apply a change to a deployment. What is the first Kubernetes component that the request reaches?

A. Kubernetes Controller Manager
B. kubelet
C. Kubernetes Scheduler
D. Kubernetes API Server

Answer: D

Explanation:
* Allkubectl requestsgo to theKubernetes API Server.
* The API server is thefront-end of the control planeand validates/authenticates requests before other components act.
* Exact extract (Kubernetes Docs - Components):
* "The API server is a component of the Kubernetes control plane that exposes the Kubernetes API. It is the front end for the Kubernetes control plane."
* Other options clarified:
* Controller Manager: reconciles state after API Server processes the request.
* Scheduler: assigns Pods to nodes after API Server accepts workload objects.
* kubelet: node agent, only communicates after API Server updates desired state.
References:
Kubernetes Docs - Components: https://kubernetes.io/docs/concepts/overview/components/

NEW QUESTION # 41
What is a multi-stage build?

A. A build process that involves multiple repositories for storing container images.
B. A build process that involves multiple stages of image creation, allowing for smaller, optimized images.
C. A build process that involves multiple containers running simultaneously to speed up the image creation.
D. A build process that involves multiple developers collaborating on building an image.

Answer: B

Explanation:
* Multi-stage buildsare a Docker/Kaniko feature that allows building images in multiple stages # final image contains only runtime artifacts, not build tools.
* This reducesimage size, attack surface, and security risks.
* Exact extract (Docker Docs):
* "Multi-stage builds allow you to use multiple FROM statements in a Dockerfile. You can copy artifacts from one stage to another, resulting in smaller, optimized images."
* Clarifications:
* A: Collaboration is not the definition.
* B: Multiple repositories # multi-stage builds.
* C: Build concurrency # multi-stage builds.
References:
Docker Docs - Multi-Stage Builds: https://docs.docker.com/develop/develop-images/multistage-build/

NEW QUESTION # 42
What is the purpose of the Supplier Assessments and Reviews control in the NIST 800-53 Rev. 5 set of controls for Supply Chain Risk Management?

A. To evaluate and monitor existing suppliers for adherence to security requirements.
B. To conduct regular audits of suppliers' financial performance.
C. To identify potential suppliers for the organization.
D. To establish contractual agreements with suppliers.

Answer: A

Explanation:
* In NIST SP 800-53 Rev. 5,SR-6: Supplier Assessments and Reviewsrequires evaluating and monitoring suppliers' security and risk practices.
* Exact extract (NIST SP 800-53 Rev. 5, SR-6):
* "The organization assesses and monitors suppliers to ensure they are meeting the security requirements specified in contracts and agreements."
* This is aboutongoing monitoringof supplier adherence, not financial audits, not contract creation, and not supplier discovery.
References:
NIST SP 800-53 Rev. 5, Control SR-6 (Supplier Assessments and Reviews): https://csrc.nist.gov/publications
/detail/sp/800-53/rev-5/final

NEW QUESTION # 43
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Valid KCSA Exam Simulator & Exam KCSA Course

Linux Foundation KCSA Exam Syllabus Topics:

Exam Linux Foundation KCSA Course | KCSA New Exam Camp

Linux Foundation Kubernetes and Cloud Native Security Associate Sample Questions (Q38-Q43):

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