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  2. Linux Foundation Certification
  3. CNPA Exam
  4. LinuxFoundation.CNPA.v2026-04-29.q28 Dumps
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Question 11

In a scenario where an Internal Developer Platform (IDP) is being used to enable developers to self-service provision products and capabilities such as Namespace-as-a-Service, which answer best describes who is responsible for resolving application-related incidents?

Correct Answer: C
Platform engineering clearly separates responsibilities between platform teams and application teams. Option C is correct because platform teams manage the platform and infrastructure layer, ensuring stability, compliance, and availability, while application teams own their applications, including troubleshooting application-specific issues.
Option A (creating a single merged team) introduces inefficiency and removes specialization. Option B incorrectly suggests application teams should also solve infrastructure issues, which conflicts with platform- as-a-product principles. Option D places all responsibilities on platform teams, which creates bottlenecks and undermines application team ownership.
By splitting responsibilities, IDPs empower developers with self-service provisioning while maintaining clear boundaries. This ensures both agility and accountability: platform teams focus on enabling and securing the platform, while application teams take ownership of their code and services.
References:- CNCF Platforms Whitepaper- Team Topologies (Platform as a Product Model)- Cloud Native Platform Engineering Study Guide
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Question 12

A platform engineering team is building an Internal Developer Platform (IDP). Which of the following enables application teams to manage infrastructure resources independently, without requiring direct platform team support?

Correct Answer: D
The defining capability of an IDP is enabling self-service so developers can independently access infrastructure and platform resources. Option D is correct because self-service resource provisioning APIs allow developers to provision resources such as namespaces, databases, or environments without relying on manual intervention from the platform team. These APIs embed governance, compliance, and organizational guardrails while giving autonomy to development teams.
Option A (manual deployment services) defeats the purpose of self-service. Option B (knowledge centers) improve documentation but do not provide automation. Option C (logging/monitoring interfaces) are observability tools, not resource provisioning mechanisms.
Self-service APIs empower developers, reduce cognitive load, and minimize bottlenecks. They also align with the platform engineering principle of "treating the platform as a product," where developers are customers, and the platform offers curated golden paths to simplify consumption of infrastructure and services.
References:- CNCF Platforms Whitepaper- CNCF Platform Engineering Maturity Model- Cloud Native Platform Engineering Study Guide
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Question 13

Which Kubernetes feature allows you to control how Pods communicate with each other and external services?

Correct Answer: B
Kubernetes Network Policies are the feature that controls how Pods communicate with each other and external services. Option B is correct because Network Policies define rules for ingress (incoming) and egress (outgoing) traffic at the Pod level, ensuring fine-grained control over communication pathways within the cluster.
Option A (Pod Security Standards) defines policies around Pod security contexts (e.g., privilege escalation, root access) but does not control network traffic. Option C (Security Context) is specific to Pod or container- level permissions, not networking. Option D (RBAC) governs access to Kubernetes API resources, not Pod-to- Pod traffic.
Network Policies are essential for implementing a zero-trust model in Kubernetes, ensuring that only authorized services communicate. This enhances both security and compliance, especially in multi-tenant clusters.
References:- CNCF Kubernetes Security Best Practices- CNCF Platforms Whitepaper- Cloud Native Platform Engineering Study Guide
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Question 14

What is the primary purpose of Kubernetes runtime security?

Correct Answer: B
The main purpose of Kubernetes runtime security is to protect workloads during execution. Option B is correct because runtime security focuses on monitoring active Pods, containers, and processes to detect and prevent malicious activity such as privilege escalation, anomalous network connections, or unauthorized file access.
Option A (etcd encryption) addresses data at rest, not runtime. Option C (image scanning) occurs pre- deployment, not during execution. Option D (API access control) is enforced through RBAC and IAM, not runtime security.
Runtime security solutions (e.g., Falco, Cilium, or Kyverno) continuously observe system calls, network traffic, and workload behaviors to enforce policies and detect threats in real time. This ensures compliance, strengthens defenses in zero-trust environments, and provides critical protection for cloud native workloads in production.
References:- CNCF Security TAG Guidance- CNCF Platforms Whitepaper- Cloud Native Platform Engineering Study Guide
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Question 15

What is the primary purpose of using multiple environments (e.g., development, staging, production) in a cloud native platform?

Correct Answer: A
The primary reason for implementing multiple environments in cloud native platforms is to isolate the different phases of the software development lifecycle. Option A is correct because environments such as development, staging, and production enable testing and validation at each stage without impacting end users. Development environments allow rapid iteration, staging environments simulate production for integration and performance testing, and production environments serve real users.
Option B (reducing costs) may be a side effect but is not the main purpose. Option C (distributing traffic) relates more to load balancing and high availability, not environment separation. Option D is the opposite of the goal-different environments often require tailored infrastructure to meet their distinct purposes.
Isolation through multiple environments is fundamental to reducing risk, supporting continuous delivery, and ensuring stability. This practice also allows for compliance checks, automated testing, and user acceptance validation before changes reach production.
References:- CNCF Platforms Whitepaper- Team Topologies & Platform Engineering Guidance- Cloud Native Platform Engineering Study Guide
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