ちなみに、Jpshiken KCNAの一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1QLuOqOahh5_y5yBClQrI2nxA32Md_imI
これらすべてのKCNA学習教材で、あなたの成功は100％保証されます。さらに、無料のデモがあります。無料のデモでは、練習資料の内容について証明された経験に基づいた推測を提供します。この試験について決心している限り、その職業は疑う余地がないことを理解できます。そして、彼らの職業はKCNAトレーニング準備で徹底的に表現されています。彼らはKCNA試験の本当の知識をつかみ、忘れられない経験をするのに非常に役立ちます。この小さなメリットをお見逃しなく。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Kubernetes Fundamentals | 46% | - Scheduling
|
| Topic 2: Container Orchestration | 22% | - Service Mesh
|
| Topic 3: Cloud Native Application Delivery | 8% | - Deployment Strategies
|
| Topic 4: Cloud Native Architecture | 16% | - Infrastructure and Practices
|
| Topic 5: Cloud Native Observability | 8% | - Tracing
|
なぜ受験生のほとんどはJpshikenを選んだのですか。それはJpshikenがすごく便利で、広い通用性があるからです。JpshikenのITエリートたちは彼らの専門的な目で、最新的なLinux FoundationのKCNA試験トレーニング資料に注目していて、うちのLinux FoundationのKCNA問題集の高い正確性を保証するのです。もし君はいささかな心配することがあるなら、あなたはうちの商品を購入する前に、Jpshikenは無料でサンプルを提供することができます。
質問 # 134
In which framework do the developers no longer have to deal with capacity, deployments, scaling and fault tolerance, and OS?
正解：C
質問 # 135
What Kubernetes control plane component exposes the programmatic interface used to create, manage and interact with the Kubernetes objects?
正解：A
質問 # 136
What does SBOM stand for?
正解：D
解説：
SBOM stands for Software Bill of Materials, which is a formal inventory of the components, libraries, and dependencies included in a software artifact, used to improve transparency, security, and supply chain risk management.
質問 # 137
The Container Runtime Interface (CRI) defines the protocol for the communication between:
正解：D
解説：
The CRI (Container Runtime Interface) defines how the kubelet talks to the container runtime, so A is correct. The kubelet is the node agent responsible for ensuring containers are running in Pods on that node. It needs a standardized way to request operations such as: create a Pod sandbox, pull an image, start/stop containers, execute commands, attach streams, and retrieve logs. CRI provides that contract so kubelet does not need runtime-specific integrations.
This interface is a key part of Kubernetes' modular design. Different container runtimes implement the CRI, allowing Kubernetes to run with containerd, CRI-O, and other CRI-compliant runtimes. This separation of concerns lets Kubernetes focus on orchestration, while runtimes focus on executing containers according to the OCI runtime spec, managing images, and handling low-level container lifecycle.
Why the other options are incorrect:
* etcd is the control plane datastore; container runtimes do not communicate with etcd via CRI.
* kube-apiserver and kubelet communicate using Kubernetes APIs, but CRI is not their protocol; CRI is specifically kubelet # runtime.
* container runtime and image registry communicate using registry protocols (image pull/push APIs), but that is not CRI. CRI may trigger image pulls via runtime requests, yet the actual registry communication is separate.
Operationally, this distinction matters when debugging node issues. If Pods are stuck in "ContainerCreating" due to image pull failures or runtime errors, you often investigate kubelet logs and the runtime (containerd
/CRI-O) logs. Kubernetes administrators also care about CRI streaming (exec/attach/logs streaming), runtime configuration, and compatibility across Kubernetes versions.
So, the verified answer is A: the kubelet and the container runtime.
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質問 # 138
What is the minimum number of etcd members that are required for a highly available Kubernetes cluster?
正解：A
解説：
D (three etcd members) is correct. etcd is a distributed key-value store that uses the Raft consensus algorithm. High availability in consensus systems depends on maintaining a quorum (majority) of members to continue serving writes reliably. With 3 members, the cluster can tolerate 1 failure and still have 2/3 available-enough for quorum.
Two members is a common trap: with 2, a single failure leaves 1/2, which is not a majority, so the cluster cannot safely make progress. That means 2-member etcd is not HA; it is fragile and can be taken down by one node loss, network partition, or maintenance event. Five members can tolerate 2 failures and is a valid HA configuration, but it is not the minimum. Six is even-sized and generally discouraged for consensus because it doesn't improve failure tolerance compared to five (quorum still requires 4), while increasing coordination overhead.
In Kubernetes, etcd reliability directly affects the API server and the entire control plane because etcd stores cluster state: object specs, status, controller state, and more. If etcd loses quorum, the API server will be unable to persist or reliably read/write state, leading to cluster management outages. That's why the minimum HA baseline is three etcd members, often across distinct failure domains (nodes/AZs), with strong disk performance and consistent low-latency networking.
So, the smallest etcd topology that provides true fault tolerance is 3 members, which corresponds to option D.
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質問 # 139
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ちなみに、Jpshiken KCNAの一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1QLuOqOahh5_y5yBClQrI2nxA32Md_imI