最新的Kubernetes Cloud Native Associate認證 KCNA考試題庫

問題1

What methods can you use to scale a Deployment?

A. With kubectl scale-up deployment exclusively.

B. With kubectl edit deployment exclusively.

C. With kubectl scale deployment exclusively.

D. With kubectl scale deployment and kubectl edit deployment.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題2

Let's assume that an organization needs to process large amounts of data in bursts, on a cloud-based Kubernetes cluster. For instance: each Monday morning, they need to run a batch of 1000 compute jobs of 1 hour each, and these jobs must be completed by Monday night. What's going to be the most cost-effective method?

A. Leverage the Kubernetes Cluster Autoscaler to automatically start and stop nodes as they're needed.

B. Use PriorityClasses so that the weekly batch job gets priority over other workloads running on the cluster, and can be completed on time.

C. Run a group of nodes with the exact required size to complete the batch on time, and use a combination of taints, tolerations, and nodeSelectors to reserve these nodes to the batch jobs.

D. Commit to a specific level of spending to get discounted prices (with e.g. "reserved instances" or similar mechanisms).

正確答案: A

說明：（僅 VCESoft 成員可見）

問題3

What is CRD?

A. Custom Restricted Definition

B. Custom Resource Definition

C. Custom RUST Definition

D. Customized RUST Definition

正確答案: B

說明：（僅 VCESoft 成員可見）

問題4

Which of these events will cause the kube-scheduler to assign a Pod to a node?

A. When the CPU load on the node becomes too high.

B. When a new node is added to the Kubernetes cluster.

C. When the Pod crashes because of an error.

D. When a new Pod is created and has no assigned node.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題5

What are the 3 pillars of Observability?

A. Metrics, Logs, and Spans

B. Resources, Logs, and Tracing

C. Metrics, Logs, and Traces

D. Metrics, Data, and Traces

正確答案: C

說明：（僅 VCESoft 成員可見）

問題6

Kubernetes supports multiple virtual clusters backed by the same physical cluster. These virtual clusters are called:

A. Hypervisors

B. Namespaces

C. cgroups

D. Containers

正確答案: B

說明：（僅 VCESoft 成員可見）

問題7

Which field in a Pod or Deployment manifest ensures that Pods are scheduled only on nodes with specific labels?

A. resources:
disktype: ssd

B. annotations:
disktype: ssd

C. nodeSelector:
disktype: ssd

D. labels:
disktype: ssd

正確答案: C

說明：（僅 VCESoft 成員可見）

問題8

Which Kubernetes feature would you use to guard against split brain scenarios with your distributed application?

A. Consensus protocols

B. Rolling updates

C. StatefulSet

D. Replication controllers

正確答案: C

說明：（僅 VCESoft 成員可見）

問題9

Which of the following resources helps in managing a stateless application workload on a Kubernetes cluster?

A. Deployment

B. StatefulSet

C. kubectl

D. DaemonSet

正確答案: A

說明：（僅 VCESoft 成員可見）

問題10

What framework does Kubernetes use to authenticate users with JSON Web Tokens?

A. OpenID Connect

B. OpenID Container

C. OpenID Cluster

D. OpenID CNCF

正確答案: A

說明：（僅 VCESoft 成員可見）

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