2023 Realistic Verified Free Linux Foundation KCNA Exam Questions
KCNA Real Exam Questions and Answers FREE
The Linux Foundation KCNA certification is recognized globally as a mark of excellence in cloud-native computing. It is an industry-recognized certification that demonstrates a candidate's expertise in Kubernetes and cloud-native technologies. This certification is ideal for individuals who are seeking to enhance their career prospects in the field of cloud-native computing.
NEW QUESTION # 46
What is container runtime?
- A. A container image format
- B. Another term of kubelet or kubectl
- C. The amount of time it takes a container to execute
- D. Software that runs containers
Answer: D
Explanation:
https://www.aquasec.com/cloud-native-academy/container-security/container-runtime/
NEW QUESTION # 47
What command use to get documentation about kubernetes resource type
- A. alias k='kubectl'
k explain - B. alias k='kubectl'
k api-resources - C. alias k='kubectl'
k api-list - D. alias k='kubectl'
k get resource
Answer: A
Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#explain
NEW QUESTION # 48
What are container runtimes with Kubernetes?
- A. lxd
- B. CRI-O
- C. Dockershim
- D. containerd
Answer: B,D
Explanation:
https://kubernetes.io/docs/setup/production-environment/container-runtimes/
NEW QUESTION # 49
Which of the following is an example of vertical scaling?
- A. Adding more replica pods to a deployment
- B. Using cluster autoscaler
- C. Adding more resources (memory and/or cpu) to a kubernetes node
- D. Adding more nodes to kubernetes cluster
Answer: C
Explanation:
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
NEW QUESTION # 50
How can persistent volume be provisioned?
- A. Bootstrap
- B. Automatically
- C. Dynamically
Answer: C
Explanation:
https://kubernetes.io/docs/concepts/storage/persistent-volumes/
NEW QUESTION # 51
What is a commonly used package manager for kubernetes applications?
- A. apt
- B. kubernetes manifest
- C. helm
- D. npm
Answer: C
Explanation:
https://helm.sh/
NEW QUESTION # 52
Have a pod 'hello' and a container in that pod 'green'. Which of the following commands would get the logs for that container?
- A. alias k='kubectl'
k logs -p hello -c green - B. alias k='kubectl'
k logs -p hello green - C. alias k='kubectl'
k logs hello -c green - D. alias k='kubectl'
k get logs -p hello -c green
Answer: C
Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#logs
NEW QUESTION # 53
What is the name for a service that has no clusterIp address?
- A. NodePort
- B. Headless
- C. ClusterIP
- D. LoadBalancer
Answer: B
Explanation:
https://kubernetes.io/docs/concepts/services-networking/service/#headless-services
NEW QUESTION # 54
What is the most common way to scale the application in the cloud environment?
- A. Horizontal Scaling
- B. Vertical Scaling
- C. Parallel Scaling
Answer: A
Explanation:
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
NEW QUESTION # 55
What is the name for the tool that manages communication between pods, injects a sidecar proxy container into each pod and directs network traffic through the proxy container?
- A. Network policy
- B. Service mesh
- C. namespace
- D. Service
- E. Deployment
Answer: B
NEW QUESTION # 56
Which project in this list is a leading project in the observability space?
- A. Kubernetes
- B. Jaeger
- C. Argo
- D. Vitess
Answer: B
Explanation:
https://github.com/cncf/landscape#trail-map
NEW QUESTION # 57
Which of the following computing model doesn't require you to provision infrastructure?
- A. None of the above
- B. Serverless
- C. Bare Metal
- D. Compute Engine
- E. Virtual Machines
Answer: B
Explanation:
NEW QUESTION # 58
Observability and monitoring are not the same?
- A. False
- B. True
Answer: B
NEW QUESTION # 59
What is autoscaling?
- A. Automatically repairing broken application instances
- B. Automatically assigning workloads to nodes in a cluster
- C. Automatically measuring resource usage
- D. Automatically adding or removing compute resources as needed
Answer: D
Explanation:
https://kubernetes.io/blog/2016/07/autoscaling-in-kubernetes/
Autoscaling means automatically scaling up or down in response to real-time usage data.
NEW QUESTION # 60
What is the smallest possible unit in Kubernetes to run a container?
- A. docker
- B. pod
- C. service
- D. container
Answer: B
Explanation:
https://kubernetes.io/docs/concepts/workloads/pods/
NEW QUESTION # 61
What is the primary interface for Kubernetes cluster?
- A. YAML
- B. JSON
- C. Kubelet
- D. Kubernetes Api
- E. Control Plane
Answer: D
Explanation:
https://kubernetes.io/docs/concepts/overview/components/#kube-apiserver
NEW QUESTION # 62
What kubectl command is used to edit a resource on the server?
- A. kubectl edit
- B. kubectl resource edit
- C. kubectl update resource
- D. kubectl resource modify
Answer: A
Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#edit
NEW QUESTION # 63
Which command-line tool is used to interact with the Kubernetes cluster?
- A. kube-scheduler
- B. kubectl
- C. kube-api
Answer: B
Explanation:
https://kubernetes.io/docs/reference/kubectl/
NEW QUESTION # 64
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The KCNA Certification Exam is a great way for IT professionals to demonstrate their knowledge and skills in cloud native computing and Kubernetes. The certification can help individuals stand out in a competitive job market and increase their earning potential. It is also an excellent opportunity for organizations to validate the skills of their employees and ensure that they have the expertise needed to succeed in a cloud native environment.
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