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| Section | Weight | Objectives |
|---|---|---|
| Cloud Native Application Delivery | 8% | - GitOps
|
| Kubernetes Fundamentals | 46% | - Kubernetes API
|
| Container Orchestration | 22% | - Networking
|
| Cloud Native Architecture | 16% | - Cloud Native Landscape
|
| Cloud Native Observability | 8% | - Monitoring and Metrics
|
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NEW QUESTION # 271
In the DevOps framework and culture, who builds, automates, and offers continuous delivery tools for developer teams?
Answer: C
Explanation:
The correct answer is C (Platform Engineers). In modern DevOps and platform operating models, platform engineering teams build and maintain the shared delivery capabilities that product/application teams use to ship software safely and quickly. This includes CI/CD pipeline templates, standardized build and test automation, artifact management (registries), deployment tooling (Helm/Kustomize/GitOps), secrets management patterns, policy guardrails, and paved-road workflows that reduce cognitive load for developers.
While application developers (B) write the application code and often contribute pipeline steps for their service, the "build, automate, and offer tooling for developer teams" responsibility maps directly to platform engineering: they provide the internal platform that turns Kubernetes and cloud services into a consumable product. This is especially common in Kubernetes-based organizations where you want consistent deployment standards, repeatable security checks, and uniform observability.
Cluster operators (D) typically focus on the health and lifecycle of the Kubernetes clusters themselves:
upgrades, node pools, networking, storage, cluster security posture, and control plane reliability. They may work closely with platform engineers, but "continuous delivery tools for developer teams" is broader than cluster operations. Application users (A) are consumers of the software, not builders of delivery tooling.
In cloud-native application delivery, this division of labor is important: platform engineers enable higher velocity with safety by automating the software supply chain-builds, tests, scans, deploys, progressive delivery, and rollback. Kubernetes provides the runtime substrate, but the platform team makes it easy and safe for developers to use it repeatedly and consistently across many services.
Therefore, Platform Engineers (C) is the verified correct choice.
=========
NEW QUESTION # 272
What is the purpose of the CRI?
Answer: B
Explanation:
The Container Runtime Interface (CRI) exists so Kubernetes can support pluggable container runtimes behind a stable interface, which makes C correct. In Kubernetes, the kubelet is responsible for managing Pods on a node, but it does not implement container execution itself. Instead, it delegates container lifecycle operations (pull images, create pod sandbox, start/stop containers, fetch logs, exec/attach streaming) to a container runtime through a well-defined API. CRI is that API contract.
Because of CRI, Kubernetes can run with different container runtimes-commonly containerd or CRI-O-without changing kubelet core logic. This improves portability and keeps Kubernetes modular: runtime innovation can happen independently while Kubernetes retains a consistent operational model. CRI is accessed via gRPC and defines the services and message formats kubelet uses to communicate with runtimes.
Option B is incorrect because replication and scaling are handled by controllers (Deployments/ReplicaSets) and schedulers, not by CRI. Option D is incorrect because resource criteria (requests/limits) are expressed in Pod specs and enforced via OS mechanisms (cgroups) and kubelet/runtime behavior, but CRI is not "for defining dynamic resource criteria." Option A is vague and not the primary statement; while CRI enables runtime integration, its key purpose is explicitly to make runtimes pluggable and interoperable.
This design became even more important as Kubernetes moved away from Docker Engine integration (dockershim removal from kubelet). With CRI, Kubernetes focuses on orchestrating Pods, while runtimes focus on executing containers. That separation of responsibilities is a core container orchestration principle and is exactly what the question is testing.
So the verified answer is C.
NEW QUESTION # 273
Which control plane component is responsible for updating the node Ready condition if a node becomes unreachable?
Answer: C
Explanation:
The correct answer is B: the node controller. In Kubernetes, node health is monitored and reflected through Node conditions such as Ready. The Node Controller (a controller that runs as part of the control plane, within the controller-manager) is responsible for monitoring node heartbeats and updating node status when a node becomes unreachable or unhealthy.
Nodes periodically report status (including kubelet heartbeats) to the API server. The Node Controller watches these updates. If it detects that a node has stopped reporting within expected time windows, it marks the node condition Ready as Unknown (or otherwise updates conditions) to indicate the control plane can't confirm node health. This status change then influences higher-level behaviors such as Pod eviction and rescheduling: after grace periods and eviction timeouts, Pods on an unhealthy node may be evicted so the workload can be recreated on healthy nodes (assuming a controller manages replicas).
Option A (kube-proxy) is a node component for Service traffic routing and does not manage node health conditions. Option C (kubectl) is a CLI client; it does not participate in control plane health monitoring. Option D (kube-apiserver) stores and serves Node status, but it doesn't decide when a node is unreachable; it persists what controllers and kubelets report. The "decision logic" for updating the Ready condition in response to missing heartbeats is the Node Controller's job.
So, the component that updates the Node Ready condition when a node becomes unreachable is the node controller, which is option B.
NEW QUESTION # 274
What are the most important resources to guarantee the performance of an etcd cluster?
Answer: A
NEW QUESTION # 275
Which of the following would fall under the responsibilities of an SRE?
Answer: C
NEW QUESTION # 276
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