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NEW QUESTION # 268
Which of the following is NOT a benefit of using a community-driven approach for governing a cloud native application?
Answer: C
Explanation:
While a community-driven approach promotes collaboration and knowledge sharing, it doesn't necessarily lead to stronger security due to centralized control. In fact, it could potentially introduce vulnerabilities if proper security practices are not followed within the community.
NEW QUESTION # 269
Which mechanism allows extending the Kubernetes API?
Answer: D
Explanation:
CustomResourceDefinition (CRD) allows users to extend the Kubernetes API by defining their own resource types, enabling Kubernetes to manage custom objects alongside built-in resources.
NEW QUESTION # 270
You are troubleshooting a performance issue with an application running in a Kubernetes cluster. You have access to Prometheus and Jaeger, but the Jaeger Ul shows that a specific request took an unusually long time to process. Which metric in Prometheus can help you identify the specific component or service within the application that caused the delay?
Answer: A
Explanation:
The correct answer is E . The metric 'http_request_duration_seconds* is typically used to track the time taken for HTTP requests to be processed. In this case, by looking at the 'http_request_duration_seconds' metric for the specific request identified in Jaeger, you can see the duration of each stage of the request processing. This can pinpoint the specific component or service where the delay occurred. The other options are not relevant to identifying the specific component or service causing the delay: A : Shows CPU resource requests for a pod. B : Shows the pod's phase. C : Shows the number of replicas in a deployment. D : Shows the restart count for a pod's containers. These metrics do not provide information about the processing time of individual requests.
NEW QUESTION # 271
What's the difference between a security profile and a security context?
Answer: C
Explanation:
The correct answer is B. In Kubernetes, a securityContext is part of the Pod and container specification that configures runtime security settings for that workload-things like runAsUser, runAsNonRoot, Linux capabilities, readOnlyRootFilesystem, allowPrivilegeEscalation, SELinux options, seccomp profile selection, and filesystem group (fsGroup). These settings directly affect how the Pod's containers run on the node.
A security profile, in contrast, is a higher-level policy/standard enforced by the cluster control plane (typically via admission control) to ensure workloads meet required security constraints. In modern Kubernetes, this concept aligns with mechanisms like Pod Security Standards (Privileged, Baseline, Restricted) enforced through Pod Security Admission. The "profile" defines what is allowed or forbidden (for example, disallow privileged containers, disallow hostPath mounts, require non-root, restrict capabilities). The control plane enforces these constraints by validating or rejecting Pod specs that do not comply-ensuring consistent security posture across namespaces and teams.
Option A and D are incorrect because security contexts do not "configure clusters and namespaces at runtime"; security contexts apply to Pods/containers. Option C reverses the relationship: security profiles don't configure Pods at runtime; they constrain what security context settings (and other fields) are acceptable.
Practically, you can think of it as:
SecurityContext = workload-level configuration knobs (declared in manifests, applied at runtime).
SecurityProfile/Standards = cluster-level guardrails that determine which knobs/settings are permitted.
This separation supports least privilege: developers declare needed runtime settings, and cluster governance ensures those settings stay within approved boundaries. Therefore, B is the verified answer.
NEW QUESTION # 272
What is a Service?
Answer: C
Explanation:
The correct answer is B: a Kubernetes Service is a stable way to expose an application running on a set of Pods. Pods are ephemeral-IPs can change when Pods are recreated, rescheduled, or scaled. A Service provides a consistent network identity (DNS name and usually a ClusterIP virtual IP) and a policy for routing traffic to the current healthy backends.
Typically, a Service uses a label selector to determine which Pods are part of the backend set. Kubernetes then maintains the corresponding endpoint data (Endpoints/EndpointSlice), and the cluster dataplane (kube-proxy or an eBPF-based implementation) forwards traffic from the Service IP/port to one of the Pod IPs. This enables reliable service discovery and load distribution across replicas, especially during rolling updates where Pods are constantly replaced.
Option A is incorrect because Service routing is not a "static mapping from a Pod to a port." It's dynamic and targets a set of Pods. Option C is too vague and misstates the concept; while Services relate to networking, they are not "the network configuration for a group of Pods" (that's closer to NetworkPolicy/CNI configuration). Option D is incorrect because Kubernetes does not automatically deploy an NGINX load balancer when you create a Service. NGINX might be used as an Ingress controller or external load balancer in some setups, but a Service is a Kubernetes API abstraction, not a specific NGINX component.
Services come in several types (ClusterIP, NodePort, LoadBalancer, ExternalName), but the core definition remains the same: stable access to a dynamic set of Pods. This is foundational for microservices and for decoupling clients from the churn of Pod lifecycles.
So, the verified correct definition is B.
NEW QUESTION # 273
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KCNA Test Questions Answers: https://www.pass4sures.top/Kubernetes-Cloud-Native-Associate/KCNA-testking-braindumps.html
P.S. Free 2026 Linux Foundation KCNA dumps are available on Google Drive shared by Pass4sures: https://drive.google.com/open?id=1j8zmWRtiro45uRj5lujojnqOcchRpxtC