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Linux Foundation KCNA Exam is intended for individuals who are interested in working with Kubernetes and cloud-native technologies. KCNA exam is designed to validate the knowledge and skills required to work with these technologies, including the ability to implement, manage, and troubleshoot Kubernetes clusters. Kubernetes and Cloud Native Associate certification program is also suitable for IT professionals who are interested in learning more about cloud-native technologies and want to enhance their knowledge.
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Linux Foundation KCNA (Kubernetes and Cloud Native Associate) Exam is a certification program designed for professionals who want to validate their knowledge and skills in the field of cloud computing and containerization. KCNA Exam is aimed at individuals who want to demonstrate their proficiency in Kubernetes, a popular container orchestration system, and other cloud-native technologies.
NEW QUESTION # 193
What is OPA?
Answer: D
Explanation:
https://www.cncf.io/projects/open-policy-agent-opa/
NEW QUESTION # 194
You are running a web application in a Kubernetes cluster, and you want to ensure that your application always has at least one healthy pod available for serving traffic. Which Kubernetes
concept best addresses this requirement?
Answer: D
Explanation:
Pod Disruption Budgets (PDB) are a Kubernetes feature that helps maintain the availability of your application by limiting the number of pods that can be deleted at any given time. This ensures that at least a minimum number of healthy pods remain running, even during updates or maintenance.
NEW QUESTION # 195
When building a container image for an application, which practice best ensures the image size is optimized?
Answer: C
Explanation:
Reducing unnecessary image layers helps lower storage overhead and can produce a smaller, more efficient container image. Combining related build steps and removing temporary files during the same layer further improves optimization.
NEW QUESTION # 196
What is a key feature of a container network?
Answer: C
Explanation:
A defining requirement of container networking in orchestrated environments is enabling workloads to communicate across hosts, not just within a single machine. That's why B is correct: a key feature of a container network is allowing containers (Pods) running on separate hosts to communicate.
In Kubernetes, this idea becomes the Kubernetes network model: every Pod gets an IP address, and Pods should be able to communicate with other Pods across nodes without needing NAT (depending on implementation details). Achieving that across a cluster requires a networking layer (typically implemented by a CNI plugin) that can route traffic between nodes so that Pod-to-Pod communication works regardless of placement. This is crucial because schedulers dynamically place Pods; you cannot assume two communicating components will land on the same node.
Option C is true in a trivial sense-containers on the same host can communicate-but that capability alone is not the key feature that makes orchestration viable at scale. Cross-host connectivity is the harder and more essential property. Option A describes application-layer behavior (like API gateways or reverse proxies) rather than the foundational networking capability. Option D describes storage optimization, unrelated to container networking.
From a cloud native architecture perspective, reliable cross-host networking enables microservices patterns, service discovery, and distributed systems behavior. Kubernetes Services, DNS, and NetworkPolicies all depend on the underlying ability for Pods across the cluster to send traffic to each other. If your container network cannot provide cross-node routing and reachability, the cluster behaves like isolated islands and breaks the fundamental promise of orchestration: "schedule anywhere, communicate consistently."
NEW QUESTION # 197
Which authentication method allows JWTs to authenticate?
Answer: B
NEW QUESTION # 198
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