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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cloud Native Application Delivery | 8% | - Delivery Models
|
| Topic 2: Cloud Native Observability | 8% | - Monitoring & Metrics
|
| Topic 3: Cloud Native Architecture | 16% | - Ecosystem & Landscape
|
| Topic 4: Container Orchestration | 22% | - Security & Troubleshooting
|
| Topic 5: Kubernetes Fundamentals | 46% | - Containerization Basics
|
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220. Frage
What's the most adopted way of conflict resolution and decision-making for the open-source projects under the CNCF umbrella?
Antwort: A
Begründung:
B (Discussion and Voting) is correct. CNCF-hosted open-source projects generally operate with open governance practices that emphasize transparency, community participation, and documented decision-making. While each project can have its own governance model (maintainers, technical steering committees, SIGs, TOC interactions, etc.), a very common and widely adopted approach to resolving disagreements and making decisions is to first pursue discussion (often on GitHub issues/PRs, mailing lists, or community meetings) and then use voting/consensus mechanisms when needed.
This approach is important because open-source communities are made up of diverse contributors across companies and geographies. "Project Founder Say" (D) is not a sustainable or typical CNCF governance norm for mature projects; CNCF explicitly encourages neutral, community-led governance rather than single-person control. "Financial Analysis" (A) is not a conflict resolution mechanism for technical decisions, and "Flipism Technique" (C) is not a real governance practice.
In Kubernetes specifically, community decisions are often made within structured groups (e.g., SIGs) using discussion and consensus-building, sometimes followed by formal votes where governance requires it. The goal is to ensure decisions are fair, recorded, and aligned with the project's mission and contributor expectations. This also reduces risk of vendor capture and builds trust: anyone can review the rationale in meeting notes, issues, or PR threads, and decisions can be revisited with new evidence.
Therefore, the most adopted conflict resolution and decision-making method across CNCF open-source projects is discussion and voting, making B the verified correct answer.
221. Frage
Which of the following sentences is true about container runtimes in Kubernetes?
Antwort: D
Begründung:
A Kubernetes node must have a container runtime to run Pods, so D is correct. Kubernetes schedules Pods to nodes, but the actual execution of containers is performed by a runtime such as containerd or CRI-O. The kubelet communicates with that runtime via the Container Runtime Interface (CRI) to pull images, create sandboxes, and start/stop containers. Without a runtime, the node cannot launch container processes, so Pods cannot transition into running state.
Options A and B confuse networking kernel settings with runtime requirements. iptables bridged traffic visibility and IPv4 forwarding can be relevant for node networking, but they do not replace the need for a container runtime. Networking and container execution are separate layers: you need networking for connectivity, and you need a runtime for running containers.
Option C is also incorrect and muddled. Container runtimes are not deprecated; rather, Kubernetes removed the built-in Docker shim integration from kubelet in favor of CRI-native runtimes. CRI is an interface, not "something you install instead of a runtime." In practice you install a CRI-compatible runtime (containerd/CRI-O), which implements CRI endpoints that kubelet talks to.
Operationally, the runtime choice affects node behavior: image management, logging integration, performance characteristics, and compatibility. Kubernetes installation guides explicitly list installing a container runtime as a prerequisite for worker nodes. If a cluster has nodes without a properly configured runtime, workloads scheduled there will fail to start (often stuck in ContainerCreating/ImagePullBackOff/Runtime errors).
Therefore, the only fully correct statement is D: each node needs a container runtime to run Pods.
222. Frage
Which of the following sentences is true about container runtimes in Kubernetes?
Antwort: D
Begründung:
A Kubernetes node must have a container runtime to run Pods, so D is correct. Kubernetes schedules Pods to nodes, but the actual execution of containers is performed by a runtime such as containerd or CRI-O. The kubelet communicates with that runtime via the Container Runtime Interface (CRI) to pull images, create sandboxes, and start/stop containers. Without a runtime, the node cannot launch container processes, so Pods cannot transition into running state.
Options A and B confuse networking kernel settings with runtime requirements. iptables bridged traffic visibility and IPv4 forwarding can be relevant for node networking, but they do not replace the need for a container runtime. Networking and container execution are separate layers: you need networking for connectivity, and you need a runtime for running containers.
Option C is also incorrect and muddled. Container runtimes are not deprecated; rather, Kubernetes removed the built-in Docker shim integration from kubelet in favor of CRI-native runtimes. CRI is an interface, not
"something you install instead of a runtime." In practice you install a CRI-compatible runtime (containerd
/CRI-O), which implements CRI endpoints that kubelet talks to.
Operationally, the runtime choice affects node behavior: image management, logging integration, performance characteristics, and compatibility. Kubernetes installation guides explicitly list installing a container runtime as a prerequisite for worker nodes. If a cluster has nodes without a properly configured runtime, workloads scheduled there will fail to start (often stuck in ContainerCreating/ImagePullBackOff
/Runtime errors).
Therefore, the only fully correct statement is D: each node needs a container runtime to run Pods.
=========
223. Frage
Which group of container runtimes provides additional sandboxed isolation and elevated security?
Antwort: C
224. Frage
Which tool is used to streamline installing and managing Kubernetes applications?
Antwort: C
Begründung:
Helm is the Kubernetes package manager used to streamline installing and managing applications, so B is correct. Helm packages Kubernetes resources into charts, which contain templates, default values, and metadata. When you install a chart, Helm renders templates into concrete manifests and applies them to the cluster. Helm also tracks a "release," enabling upgrades, rollbacks, and consistent lifecycle operations across environments.
This is why Helm is widely used for complex applications that require multiple Kubernetes objects (Deployments/StatefulSets, Services, Ingresses, ConfigMaps, RBAC, CRDs). Rather than manually maintaining many YAML files per environment, teams can parameterize configuration with values and reuse the same chart across dev/stage/prod with different overrides.
Option A (apt) and option D (brew) are OS package managers (Debian/Ubuntu and macOS/Linuxbrew respectively), not Kubernetes application managers. Option C (service) is a Linux service manager command pattern and not relevant here.
In cloud-native delivery pipelines, Helm often integrates with GitOps and CI/CD: the pipeline builds an image, updates chart values (image tag/digest), and deploys via Helm or via GitOps controllers that render
/apply Helm charts. Helm also supports chart repositories and versioning, making it easier to standardize deployments and manage dependencies.
So, the verified tool for streamlined Kubernetes app install/management is Helm (B).
=========
225. Frage
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