KCNA practice questions 31–40

1. Question 31 · 282 in bank

   What does "Continuous Integration" mean?

   • AThe continuous integration and testing of code changes from multiple sources manually.
   • BThe continuous integration and testing of code changes from multiple sources via automation.
   • CThe continuous integration of changes from one environment to another.
   • DThe continuous integration of new tools to support developers in a project.

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   Answer: B

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2. Question 32 · 282 in bank

   Which of the following options is true about considerations for large Kubernetes clusters?

   • AKubernetes supports up to 1000 nodes and recommends no more than 1000 containers per node.
   • BKubernetes supports up to 5000 nodes and recommends no more than 500 pods per node.
   • CKubernetes supports up to 5000 nodes and recommends no more than 110 pods per node.
   • DKubernetes supports up to 50 nodes and recommends no more than 1000 containers per node.

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   Answer: C

   Explanation

   - No more than 110 pods per node - No more than 5,000 nodes - No more than 150,000 total pods - No more than 300,000 total containers

   Source: Adapted from community discussion — heeloco

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3. Question 33 · 282 in bank

   Which component of the node is responsible to run workloads?

   • AThe kubelet.
   • BThe kubeproxy.
   • CThe kube-apiserver.
   • DThe container runtime.

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   Answer: D

   Explanation

   The component of the node responsible for running workloads is the kubelet. While the container runtime (like Docker, containerd, or CRI-O) is crucial for actually running the containers, the kubelet is the orchestrator that ensures the containers are running as specified by the Kubernetes control plane.

   Source: Adapted from community discussion — mc2301

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4. Question 34 · 282 in bank

   Kubernetes ___ allows you to automatically manage the number of nodes in your cluster to meet demand.

   • ANode Autoscaler
   • BCluster Autoscaler
   • CHorizontal Pod Autoscaler
   • DVertical Pod Autoscaler

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   Answer: B

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5. Question 35 · 282 in bank

   The IPv4/IPv6 dual stack in Kubernetes:

   • ATranslates an IPv4 request from a service to an IPv6 service.
   • BAllows you to access the IPv4 address by using the IPv6 address.
   • CRequires NetworkPolicies to prevent services from mixing requests.
   • DAllows you to create IPv4 and IPv6 dual stack services.

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   Answer: D

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6. Question 36 · 282 in bank

   What does "continuous" mean in the context of CI/CD?

   • AFrequent releases, Manual processes, Repeatable, Fast processing
   • BPeriodic releases, Manual processes, Repeatable, Automated Processing
   • CFrequent releases, Automated processes, Repeatable, Fast processing
   • DPeriodic releases, Automated processes, Repeatable, Automated processing

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   Answer: C

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7. Question 37 · 282 in bank

   What is ephemeral storage?

   • AStorage space that need not persist across restarts.
   • BStorage that may grow dynamically.
   • CStorage used by multiple consumers (e.g. multiple Pods).
   • DStorage that is always provisioned locally

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   Answer: A

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8. Question 38 · 282 in bank

   What is the reference implementation of the OCI runtime specification?

   • Alxc
   • Bcri-o
   • Crunc
   • Ddocker

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   Answer: C

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9. Question 39 · 282 in bank

   What is a Service?

   • AA static network mapping from a Pod to a port.
   • BA way to expose an application running on a set of Pods.
   • CThe network configuration for a group of Pods.
   • DAn NGINX load balancer that gets deployed for an application.

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   Answer: B

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10. Question 40 · 282 in bank

    What's the difference between a security profile and a security context?

    • ASecurity Contexts configure Clusters and Namespaces at runtime. Security profiles are control plane mechanisms to enforce specific settings in the Security Context.
    • BSecurity Contexts configure Pods and Containers at runtime. Security profiles are control plane mechanisms to enforce specific settings in the Security Context.
    • CSecurity Profiles configure Pods and Containers at runtime. Security Contexts are control plane mechanisms to enforce specific settings in the Security Profile.
    • DSecurity Profiles configure Clusters and Namespaces at runtime. Security Contexts are control plane mechanisms to enforce specific settings in the Security Profile.

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    Answer: B

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KCNA practice, question 31. 282 questions available.