What is the primary responsibility of the Kubernetes scheduler?

To expose the Kubernetes API to external clients

To store cluster state and manage the etcd database

To assign pending pods to nodes that satisfy the pods' resource requirements and constraints

To run containers on nodes by interacting directly with the container runtime

What is the purpose of a taint on a node?

To reserve resources on the node for system pods

To mark a node as unschedulable for pods that do not have a matching toleration

To automatically delete pods that are not healthy

To add a label to the node for scheduling decisions

A company has a cluster with nodes labeled `environment=prod` and `environment=dev`. They want to ensure that a new pod runs only on production nodes. Which field should be added to the pod spec?

A toleration for a taint on production nodes

`nodeAffinity` with `preferredDuringSchedulingIgnoredDuringExecution` for `environment=prod`

`nodeSelector: {environment: dev}`

`nodeSelector: {environment: prod}`

A pod has the following nodeSelector: "disktype: ssd". On which nodes will the scheduler place this pod?

Only nodes that do not have the disktype label

Only nodes labeled with disktype=ssd

Any node that has a label with the key disktype, regardless of value

Any node, because nodeSelector is only a preference

What is the role of resource requests in a pod spec?

To limit the maximum resources a container can use

To reserve resources on the node for system components

To specify the minimum amount of resources a container needs for scheduling

To define the exact amount of resources a container will use

Kubernetes and Cloud Native Associate (KCNA)

Domain 1Objective 2

Scheduling KCNA Practice Questions (Page 6)

Part of the Kubernetes Fundamentals domain, which accounts for 44% of the KCNA exam. Linux Foundation does not publish an official question count, but from its 90-minute exam (~35–60 total, ~15–26 in this domain), expect 3–4 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

10concepts

44%of the exam

Questions 26–30

26foundation · easy
What is the primary responsibility of the Kubernetes scheduler?
Select an answer first
27foundation · easy
What is the purpose of a taint on a node?
Select an answer first
28application · medium
A company has a cluster with nodes labeled `environment=prod` and `environment=dev`. They want to ensure that a new pod runs only on production nodes. Which field should be added to the pod spec?
Select an answer first
29foundation · easy
A pod has the following nodeSelector: "disktype: ssd". On which nodes will the scheduler place this pod?
Select an answer first
30foundation · easy
What is the role of resource requests in a pod spec?
Select an answer first

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