KCNA practice questions 41–50

1. Question 41 · 282 in bank

   At which layer would distributed tracing be implemented in a cloud native deployment?

   • ANetwork
   • BApplication
   • CDatabase
   • DInfrastructure

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   Answer: B

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2. Question 42 · 282 in bank

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

   • AOpenID Connect
   • BOpenID Container
   • COpenID Cluster
   • DOpenID CNCF

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   Answer: A

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3. Question 43 · 282 in bank

   Which of the following is a feature Kubernetes provides by default as a container orchestration tool?

   • AA portable operating system.
   • BFile system redundancy.
   • CA container image registry.
   • DAutomated rollouts and rollbacks.

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   Answer: D

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4. Question 44 · 282 in bank

   Which of the following sentences is true about container runtimes in Kubernetes?

   • AIf you let iptables see bridged traffic, you don't need a container runtime.
   • BIf you enable IPv4 forwarding, you don't need a container runtime.
   • CContainer runtimes are deprecated, you must install CRI on each node
   • DYou must install a container runtime on each node to run pods on it.

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   Answer: D

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5. Question 45 · 282 in bank

   Which of the following statements is correct concerning Open Policy Agent (OPA)?

   • AThe policies must be written in Python language.
   • BKubernetes can use it to validate requests and apply policies.
   • CPolicies can only be tested when published.
   • DIt cannot be used outside Kubernetes.

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   Answer: B

   Explanation

   OPA is a general-purpose policy engine that can be used to enforce policies across various systems, including Kubernetes. In Kubernetes, OPA can be integrated to validate admission requests, apply policies for resource creation, and enforce custom policies for security, compliance, and other requirements.

   Source: Adapted from community discussion — dadaarce

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6. Question 46 · 282 in bank

   If a Pod was waiting for container images to download on the scheduled node, what state would it be in?

   • AFailed
   • BSucceeded
   • CUnknown
   • DPending

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   Answer: D

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7. Question 47 · 282 in bank

   In a cloud native world, what does the IaC abbreviation stands for?

   • AInfrastructure and Code
   • BInfrastructure as Code
   • CInfrastructure above Code
   • DInfrastructure across Code

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   Answer: B

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8. Question 48 · 282 in bank

   Which of the following scenarios would benefit the most from a service mesh architecture?

   • AA few applications with hundreds of pod replicas running in multiple clusters, each one providing multiple services.
   • BThousands of distributed applications running in a single cluster, each one providing multiple services.
   • CTens of distributed applications running in multiple clusters, each one providing multiple services.
   • DThousands of distributed applications running in multiple clusters, each one providing multiple services.

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   Answer: D

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9. Question 49 · 282 in bank

   Which one of the following is an open source runtime security tool?

   • Alxd
   • Bcontainerd
   • Cfalco
   • Dgvisor

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   Answer: C

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10. Question 50 · 282 in bank

    In which framework do the developers no longer have to deal with capacity, deployments, scaling and fault tolerance, and OS?

    • ADocker Swam
    • BKubernetes
    • CMesos
    • DServerless

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    Answer: D

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KCNA practice, question 41. 282 questions available.