Biography

Linux Foundation KCSA최신업데이트버전덤프문제 & KCSA시험대비최신덤프공부

참고: Itexamdump에서 Google Drive로 공유하는 무료 2025 Linux Foundation KCSA 시험 문제집이 있습니다: https://drive.google.com/open?id=1lR8GxPJLFWILvc84YzdIbxXdPbPRuyvU

Itexamdump 의 학습가이드에는Linux Foundation KCSA인증시험의 예상문제, 시험문제와 답입니다. 그리고 중요한 건 시험과 매우 유사한 시험문제와 답도 제공해드립니다. Itexamdump 을 선택하면 Itexamdump 는 여러분을 빠른시일내에 시험관련지식을 터득하게 할 것이고Linux Foundation KCSA인증시험도 고득점으로 패스하게 해드릴 것입니다.

Linux Foundation KCSA 시험요강:

주제
소개

주제 1

• Platform Security: This section of the exam measures the skills of a Cloud Security Architect and encompasses broader platform-wide security concerns. This includes securing the software supply chain from image development to deployment, implementing observability and service meshes, managing Public Key Infrastructure (PKI), controlling network connectivity, and using admission controllers to enforce security policies.

주제 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.

주제 3

• Compliance and Security Frameworks: This section of the exam measures the skills of a Compliance Officer and focuses on applying formal structures to ensure security and meet regulatory demands. It covers working with industry-standard compliance and threat modeling frameworks, understanding supply chain security requirements, and utilizing automation tools to maintain and prove an organization's security posture.

 

>> Linux Foundation KCSA최신 업데이트버전 덤프문제 <<

KCSA시험대비 최신 덤프공부 & KCSA최신 업데이트버전 덤프공부자료

Linux Foundation인증 KCSA시험을 패스하고 싶다면Itexamdump에서 출시한Linux Foundation인증 KCSA덤프가 필수이겠죠. Linux Foundation인증 KCSA시험을 통과하여 원하는 자격증을 취득하시면 회사에서 자기만의 위치를 단단하게 하여 인정을 받을수 있습니다.이 점이 바로 많은 IT인사들이Linux Foundation인증 KCSA시험에 도전하는 원인이 아닐가 싶습니다. Itexamdump에서 출시한Linux Foundation인증 KCSA덤프 실제시험의 거의 모든 문제를 커버하고 있어 최고의 인기와 사랑을 받고 있습니다. 어느사이트의Linux Foundation인증 KCSA공부자료도Itexamdump제품을 대체할수 없습니다.학원등록 필요없이 다른 공부자료 필요없이 덤프에 있는 문제만 완벽하게 공부하신다면Linux Foundation인증 KCSA시험패스가 어렵지 않고 자격증취득이 쉬워집니다.

최신 Kubernetes and Cloud Native KCSA 무료샘플문제 (Q28-Q33):

질문 # 28
Is it possible to restrict permissions so that a controller can only change the image of a deployment (without changing anything else about it, e.g., environment variables, commands, replicas, secrets)?

• A. Yes, by granting permission to the /image subresource.
• B. Yes, with a 'managed fields' annotation.
• C. Not with RBAC, but it is possible with an admission webhook.
• D. No, because granting access to the spec.containers.image field always grants access to the rest of the spec object.

정답：C

설명：
* RBAC in Kubernetesis coarse-grained: it controlsverbs(get, update, patch, delete) onresources(e.g., deployments), butnot individual fieldswithin a resource.
* There isno /image subresource for deployments(there is one for pods but only for ephemeral containers).
* Therefore,RBAC cannot restrict changes only to the image field.
* Admission Webhooks(mutating/validating)canenforce fine-grained policies (e.g., deny updates that change anything other than spec.containers[*].image).
* Exact extract (Kubernetes Docs - Admission Webhooks):
* "Admission webhooks can be used to enforce custom policies on objects being admitted." References:
Kubernetes Docs - RBAC: https://kubernetes.io/docs/reference/access-authn-authz/rbac/ Kubernetes Docs - Admission Webhooks: https://kubernetes.io/docs/reference/access-authn-authz
/extensible-admission-controllers/

 

질문 # 29
To restrict the kubelet's rights to the Kubernetes API, whatauthorization modeshould be set on the Kubernetes API server?

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

정답：A

설명：
* 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.

 

질문 # 30
A Kubernetes cluster tenant can launch privileged Pods in contravention of therestricted Pod Security Standardmandated for cluster tenants and enforced by the built-inPodSecurity admission controller.
The tenant has full CRUD permissions on the namespace object and the namespaced resources. How did the tenant achieve this?

• A. By using higher-level access credentials obtained reading secrets from another namespace.
• B. By deleting the PodSecurity admission controller deployment running in their namespace.
• C. By tampering with the namespace labels.
• D. The scope of the tenant role means privilege escalation is impossible.

정답：C

설명：
* ThePodSecurity admission controllerenforces Pod Security Standards (Baseline, Restricted, Privileged)based on namespace labels.
* If a tenant has full CRUD on the namespace object, they canmodify the namespace labelsto remove or weaken the restriction (e.g., setting pod-security.kubernetes.io/enforce=privileged).
* This allows privileged Pods to be admitted despite the security policy.
* Incorrect options:
* (A) is false - namespace-level access allows tampering.
* (C) is invalid - PodSecurity admission is not namespace-deployed, it's a cluster-wide admission controller.
* (D) is unrelated - Secrets from other namespaces wouldn't directly bypass PodSecurity enforcement.
References:
Kubernetes Documentation - Pod Security Admission
CNCF Security Whitepaper - Admission control and namespace-level policy enforcement weaknesses.

 

질문 # 31
Which of the following statements best describes the role of the Scheduler in Kubernetes?

• A. The Scheduler is responsible for managing the deployment and scaling of applications in the Kubernetes cluster.
• B. The Scheduler is responsible for ensuring the security of the Kubernetes cluster and its components.
• C. The Scheduler is responsible for monitoring and managing the health of the Kubernetes cluster.
• D. The Scheduler is responsible for assigning Pods to nodes based on resource availability and other constraints.

정답：D

설명：
* TheKubernetes Schedulerassigns Pods to nodes based on:
* Resource requests & availability (CPU, memory, GPU, etc.)
* Constraints (affinity, taints, tolerations, topology, policies)
* Exact extract (Kubernetes Docs - Scheduler):
* "The scheduler is a control plane process that assigns Pods to Nodes. Scheduling decisions take into account resource requirements, affinity/anti-affinity, constraints, and policies."
* Other options clarified:
* A: Monitoring cluster health is theController Manager's/kubelet's job.
* B: Security is enforced throughRBAC, admission controllers, PSP/PSA, not the scheduler.
* C: Deployment scaling is handled by theController Manager(Deployment/ReplicaSet controller).
References:
Kubernetes Docs - Scheduler: https://kubernetes.io/docs/concepts/scheduling-eviction/kube-scheduler/

 

질문 # 32
Which of the following statements correctly describes a container breakout?

• A. A container breakout is the process of escaping the container and gaining access to the Pod's network traffic.
• B. A container breakout is the process of escaping the container and gaining access to the host operating system.
• C. A container breakout is the process of escaping a container when it reaches its resource limits.
• D. A container breakout is the process of escaping the container and gaining access to the cloud provider's infrastructure.

정답：B

설명：
* Container breakoutrefers to an attacker escaping container isolation and reaching thehost OS.
* Once the host is compromised, the attacker can accessother containers, Kubernetes nodes, or escalate further.
* Exact extract (Kubernetes Security Docs):
* "If an attacker gains access to a container, they may attempt a container breakout to gain access to the host system."
* Other options clarified:
* A: Network access inside a Pod # breakout.
* B: Resource exhaustion is aDoS, not a breakout.
* C: Cloud infrastructure compromise is possibleafterhost compromise, but not the definition of breakout.
References:
Kubernetes Security Concepts: https://kubernetes.io/docs/concepts/security/ CNCF Security Whitepaper (Threats section):https://github.com/cncf/tag-security

 

질문 # 33
......

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