KCNA practice questions 1–10

1. Question 1 · 282 in bank

   What native runtime is Open Container Initiative (OCI) compliant?

   • ArunC
   • BrunV
   • Ckata-containers
   • Dgvisor

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   Answer: A

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2. Question 2 · 282 in bank

   What function does kube-proxy provide to a cluster?

   • AImplementing the Ingress resource type for application traffic.
   • BForwarding data to the correct endpoints for Services.
   • CManaging data egress from the cluster nodes to the network.
   • DManaging access to the Kubernetes API.

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   Answer: B

   Explanation

   kube-proxy is a network proxy that runs on each node in the Kubernetes cluster. Its primary function is to maintain network rules on each node to forward traffic to the appropriate pods or services based on IP address and port number.

   Source: Adapted from community discussion — dadaarce

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3. Question 3 · 282 in bank

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

   • AWhen the Pod crashes because of an error.
   • BWhen a new node is added to the Kubernetes cluster.
   • CWhen the CPU load on the node becomes too high.
   • DWhen a new Pod is created and has no assigned node.

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   Answer: D

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4. Question 4 · 282 in bank

   Which resource do you use to attach a volume in a Pod?

   • AStorageVolume
   • BPersistentVolume
   • CStorageClass
   • DPersistentVolumeClaim

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   Answer: D

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5. Question 5 · 282 in bank

   Which key-value store is used to persist Kubernetes cluster data?

   • Aetcd
   • BZooKeeper
   • CControlPlaneStore
   • DRedis

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   Answer: A

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6. Question 6 · 282 in bank

   What Linux namespace is shared by default by containers running within a Kubernetes Pod?

   • AHost Network
   • BNetwork
   • CProcess ID
   • DProcess Name

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   Answer: B

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7. Question 7 · 282 in bank

   What is a Dockerfile?

   • AA bash script that is used to automatically build a docker image.
   • BA config file that defines which image registry a container should be pushed to.
   • CA text file that contains all the commands a user could call on the command line to assemble an image.
   • DAn image layer created by a running container stored on the host.

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   Answer: C

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8. Question 8 · 282 in bank

   What does the "nodeSelector" within a PodSpec use to place Pods on the target nodes?

   • AAnnotations
   • BIP Addresses
   • CHostnames
   • DLabels

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   Answer: D

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9. Question 9 · 282 in bank

   What do Deployments and StatefulSets have in common?

   • AThey manage Pods that are based on an identical container spec.
   • BThey support the OnDelete update strategy.
   • CThey support an ordered, graceful deployment and scaling.
   • DThey maintain a sticky identity for each of their Pods.

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   Answer: A

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10. Question 10 · 282 in bank

    What is the practice of bringing financial accountability to the variable spend model of cloud resources?

    • AFaaS
    • BDevOps
    • CCloudCost
    • DFinOps

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    Answer: D

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KCNA practice, question 1. 282 questions available.