An administrator has a dedicated node for a legacy application that must not run any other workloads. The node has been tainted with `legacy=true:NoSchedule`. The legacy application's pod is currently in Pending state. What should be added to the pod spec to allow it to schedule onto that node?

A nodeSelector with `legacy=true`

A node affinity rule with `requiredDuringSchedulingIgnoredDuringExecution` for `legacy=true`

A toleration with key `legacy`, value `true`, and effect `NoSchedule`

A pod anti-affinity rule to avoid other pods on that node

What is a scheduling profile in Kubernetes scheduler configuration?

A set of labels applied to nodes

A list of nodes that are allowed to run pods

A set of plugins and their configurations that define how the scheduler selects nodes

A YAML template for creating pods

A pod must be placed on a specific node named `special-node` for compliance reasons. The node is running and has sufficient resources. Which field should be set in the pod spec to guarantee this placement?

A toleration for a taint on `special-node`

`nodeSelector: {kubernetes.io/hostname: special-node}`

`nodeAffinity` with `requiredDuringSchedulingIgnoredDuringExecution` for `kubernetes.io/hostname=special-node`

What must a pod have to be allowed to schedule onto a node with a taint?

A resource request that exceeds the node's capacity

A toleration that matches the taint

Kubernetes and Cloud Native Associate (KCNA)

Domain 1Objective 2

Scheduling KCNA Practice Questions (Page 3)

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 11–15

11application · medium
An administrator has a dedicated node for a legacy application that must not run any other workloads. The node has been tainted with `legacy=true:NoSchedule`. The legacy application's pod is currently in Pending state. What should be added to the pod spec to allow it to schedule onto that node?
Select an answer first
12foundation · easy
What is a scheduling profile in Kubernetes scheduler configuration?
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13foundation · easy
Which field in a Pod spec is used to constrain the pod to run only on nodes that have a specific label?
Select an answer first
14application · medium
A pod must be placed on a specific node named `special-node` for compliance reasons. The node is running and has sufficient resources. Which field should be set in the pod spec to guarantee this placement?
Select an answer first
15foundation · easy
What must a pod have to be allowed to schedule onto a node with a taint?
Select an answer first

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