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Our Linux Foundation Kubernetes and Cloud Native Security Associate KCSA questions PDF is a complete bundle of problems presenting the versatility and correlativity of questions observed in past exam papers. These questions are bundled into Linux Foundation Kubernetes and Cloud Native Security Associate PDF questions following the official study guide. Linux Foundation KCSA PDF Questions are a portable, printable document that simultaneously plays on multiple devices. Our Linux Foundation KCSA PDF questions consists of problems in all aspects, whether theoretical, practical, or analytical.

Linux Foundation Kubernetes and Cloud Native Security Associate Sample Questions (Q11-Q16):

NEW QUESTION # 11
To restrict the kubelet's rights to the Kubernetes API, whatauthorization modeshould be set on the Kubernetes API server?

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

Answer: D

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 # 12
A container image istrojanizedby an attacker by compromising the build server. Based on the STRIDE threat modeling framework, which threat category best defines this threat?

A. Tampering
B. Repudiation
C. Denial of Service
D. Spoofing

Answer: A

Explanation:
* In STRIDE,Tamperingis the threat category forunauthorized modification of data or code/artifacts. A trojanized container image is, by definition, an attacker'smodificationof the build output (the image) after compromising the CI/build system-i.e., tampering with the artifact in the software supply chain.
* Why not the others?
* Spoofingis about identity/authentication (e.g., pretending to be someone/something).
* Repudiationis about denying having performed an action without sufficient audit evidence.
* Denial of Servicetargets availability (exhausting resources or making a service unavailable).The scenario explicitly focuses on analtered imageresulting from a compromised build server-this squarely maps toTampering.
Authoritative references (for verification and deeper reading):
* Kubernetes (official docs)- Supply Chain Security (discusses risks such as compromised CI/CD pipelines leading to modified/poisoned images and emphasizes verifying image integrity/signatures).
* Kubernetes Docs#Security#Supply chain securityandSecuring a cluster(sections on image provenance, signing, and verifying artifacts).
* CNCF TAG Security - Cloud Native Security Whitepaper (v2)- Threat modeling in cloud-native and software supply chain risks; describes attackers modifying build outputs (images/artifacts) via CI
/CD compromise as a form oftamperingand prescribes controls (signing, provenance, policy).
* CNCF TAG Security - Software Supply Chain Security Best Practices- Explicitly covers CI/CD compromise leading tomaliciously modified imagesand recommends SLSA, provenance attestation, and signature verification (policy enforcement via admission controls).
* Microsoft STRIDE (canonical reference)- DefinesTamperingasmodifying data or code, which directly fits a trojanized image produced by a compromised build system.

NEW QUESTION # 13
What is the difference between gVisor and Firecracker?

A. gVisor is a user-space kernel that provides isolation and security for containers. At the same time, Firecracker is a lightweight virtualization technology for creating and managing secure, multi-tenant container and function-as-a-service (FaaS) workloads.
B. gVisor and Firecracker are both container runtimes that can be used interchangeably.
C. gVisor is a lightweight virtualization technology for creating and managing secure, multi-tenant container and function-as-a-service (FaaS) workloads. At the same time, Firecracker is a user-space kernel that provides isolation and security for containers.
D. gVisor and Firecracker are two names for the same technology, which provides isolation and security for containers.

Answer: A

Explanation:
* gVisor:
* Google-developed, implemented as auser-space kernelthat intercepts and emulates syscalls made by containers.
* Providesstrong isolationwithout requiring a full VM.
* Official docs: "gVisor is a user-space kernel, written in Go, that implements a substantial portion of the Linux system call interface."
* Source: https://gvisor.dev/docs/
* Firecracker:
* AWS-developed,lightweight virtualization technologybuilt on KVM, used in AWS Lambda and Fargate.
* Optimized for running secure, multi-tenant microVMs (MicroVMs) for containers and FaaS.
* Official docs: "Firecracker is an open-source virtualization technology that is purpose-built for creating and managing secure, multi-tenant container and function-based services."
* Source: https://firecracker-microvm.github.io/
* Key difference:gVisor # syscall interception in userspace kernel (container isolation). Firecracker # lightweight virtualization with microVMs (multi-tenant security).
* Therefore, optionAis correct.
References:
gVisor Docs: https://gvisor.dev/docs/
Firecracker Docs: https://firecracker-microvm.github.io/

NEW QUESTION # 14
Which standard approach to security is augmented by the 4C's of Cloud Native security?

A. Defense-in-Depth
B. Least Privilege
C. Secure-by-Design
D. Zero Trust

Answer: A

Explanation:
* The 4C's model (Cloud, Cluster, Container, Code) is presented in the official Kubernetes documentation as alayeredmodel that explicitly maps todefense-in-depth.
* Exact extracts from Kubernetes docs(security overview):
* "The 4C's of Cloud Native Security are Cloud, Clusters, Containers, and Code."
* "You can think of the 4C's asa layered approach to security; applying security measures at each layer reduces risk."
* "This layered approach is commonly known asdefense in depth."
References:
Kubernetes Docs - Security overview #The 4C's of Cloud Native Security: https://kubernetes.io/docs
/concepts/security/overview/#the-4cs-of-cloud-native-security

NEW QUESTION # 15
On a client machine, what directory (by default) contains sensitive credential information?

A. /etc/kubernetes/
B. /opt/kubernetes/secrets/
C. $HOME/.kube
D. $HOME/.config/kubernetes/

Answer: C

Explanation:
* Thekubectlclient uses configuration from$HOME/.kube/configby default.
* This file contains: cluster API server endpoint, user certificates, tokens, or kubeconfigs #sensitive credentials.
* Exact extract (Kubernetes Docs - Configure Access to Clusters):
* "By default, kubectl looks for a file named config in the $HOME/.kube directory. This file contains configuration information including user credentials."
* Other options clarified:
* A: /etc/kubernetes/ exists on nodes (control plane) not client machines.
* C: /opt/kubernetes/secrets/ is not a standard path.
* D: $HOME/.config/kubernetes/ is not where kubeconfig is stored by default.
References:
Kubernetes Docs - Configure Access to Clusters: https://kubernetes.io/docs/concepts/configuration/organize- cluster-access-kubeconfig/

NEW QUESTION # 16
......

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Samuel Ramirez Samuel Ramirez

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