KCNA Online Training Archives

Exam4Training Kubernetes and Cloud Native experts have put their knowledge and experience together for designing the The Linux Foundation KCNA Kubernetes and Cloud Native Associate (KCNA) Online Training. They have done a thorough study of the syllabus and exam procedure to bring the best of all resource in your hand. The The Linux Foundation KCNA ensures success in the first attempt that means you can pass your KCNA Kubernetes and Cloud Native Associate (KCNA) without any doubt.

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1. An application that is nearing its usage limit. To increase the amount of users it can handle, you allo-cate additional memory resources to each instance of the application.

What type of scaling is this?

Horizontal Scaling

Cluster Autoscaling

Recursive Scaling

Vertical Scaling

2. Which of the following best describes a cloud-native app?

An application where all logic is coded into a single large binary.

An application that publishes an HTTPS web front-end.

An application that takes advantages of cloud computing fromworks and their loosely coupled cloud services.

An application that leverages services that are native to public cloud platforms such as Azure, GCP, and/or AW

3. Which project in this list is a leading project in the observability space?

Jaeger

Vitess

Argo

Kubernetes

4. To specify a Kubernetes object which language is used?

JSON

YAML

Node

Python

5. What is OPA?

Open Permission Agent

Online Policy Audit

Open Policy Agent

Offline Policy Accessor

6. Which access control component of Kubernetes is responsible for authorization and decides what requestor is allowed to do?

Service Account

Role-based access control 'RBAC'

Deployment

7. Which authentication method allows JWTs to authenticate?

OpenId connect

Client 'TLS' certificates

OPA gatekeeper

Anonymous

8. Which of the following are characteristics of Statefulsets?

Ordered, graceful deployment and scaling

Creates replica sets

Uses headless services

9. Observability and monitoring are not the same?

True

False

10. What does the 'kops' acronym means?

Kubernetes Open Platform Specification

Kubernetes Operations

Kubernetes Operators

Kubernetes Operation Policy Specification

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11. Which prometheus metric type represents a single number value that can increase and decrease over time?

Gauge

Histogram

Summary

Counter

12. In distributed system tracing, is the term used to refer to a request as it passes through a single com-ponent of the distributed system?

Log

Span

Trace

Bucket

13. What is scheduling in Kubernetes

Determining when to execute a cron-job

Assigning pods to nodes

Joining a new nodes to the clusters

Setting a time for automated tasks

14. Have a pod 'hello' and a container in that pod 'green'.

Which of the following commands would get the logs for that container?

alias k='kubectl' k logs -p hello -c green

alias k='kubectl' k logs hello -c green

alias k='kubectl' k get logs -p hello -c green

alias k='kubectl' k logs -p hello green

15. Which of the following is not the part of Kubernetes Control Plane?

kube scheduler

etcd (pronounce: esty-d)

kube api-server

kube-proxy

16. What Linux feature is used to provide isolation for containers?

Processes

Services

NetworkPolicy

Control groups

17. What do GitOps tools do in kubernetes?

They allow us to make changes to a kubernetes cluster using a Git repository

They manage the source code of kubernetes itself

They allow us to store software code in Git

They allows us to store container images in repositories

18. Which control plane component is responsible for scheduling pods?

kube-proxy

kube scheduler

kubelet

kube api-server

19. What are the two goals of Cloud-Native?

Rapid innovation and automation

Slow innovation and stable applications

Frequent deployments and well-defined organizational silos

Rapid innovation and reliability

20. Which organizational persona creates Service Level Agreements 'SLA', Service Level Objectives 'SLO', and Service Level Indicator 'SLI'?

Developer

DevSecOps

Site Reliability Engineer (SRE)

Security and Compliance Engineer

DevOps

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21. Notary and the update framework leading security projects in CNCF

TRUE

FALSE

22. What is a commonly used package manager for kubernetes applications?

npm

apt

helm

kubernetes manifest

23. Which is NOT a use case for the Kubernetes dashboard?

Troubleshooting any issues with applications

Managing running applications

Installing new Kubernetes cluster

Managing the entire Kubernetes cluster

24. What is not semantic versioning?

1.0.0

2022-05-04

1.0.0-alpha

1.0.0-beta.2

25. What kind of limitation cgroups allows?

Prioritization

Resource limiting

Accounting

None of the options

Control

Server cpu and memory

26. What is container orchestration?

Packaging code and all of its dependencies into a single executable

Adding code to a container image so it can run as a container

Using automation to manage containers

Spinning a new containers to replace old ones

27. How would you return all the pod data in the json format using kubectl command?

kubectl get pods -o json

kubectl get pods --all-namspaces

kubectl get pods -o wide

kubectl get pods -o jsonpath

28. kubeadm is an administrative dashboard for kubernetes

False

True

29. Which of the following provides cloud-native storage orchestration?

Cloud Provider Specific storage (EBS, EFS, Cloud Storage)

Cloud Storage

Storage IO

30. Which Kubernetes resource creates Kubernetes Jobs?

JobFactory

CronJob

Task

JobDeployment

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31. Which project is not a dominant CNCF project in the storage landscape?

Envoy

Vitess

Rook

TiKV

32. What do control groups provide when it come to containers

Permission

Image Storage

Isolation

Logging

33. In Kubernetes, what is considered the primary cluster data source?

etcd (pronounce: esty-d)

api server

kubelet

scheduler

34. Which part of a Kubernetes cluster is responsible for running container workloads?

Worker Node

kube-proxy

Control plane

etcd

35. Which command is used to expose Kubernetes service

kubectl expose

kubectl create

kubectl run

36. Which role is responsible of creating service level indicator 'SLI', service level objective 'SLO', & Service Level Agreements 'SLA'

Site reliability engineer 'SRE'

DevOps

GitOps

Security and compliance engineer

Developer

37. What is a benefits of Kubernetes federation?

Avoids scalability limits on pods and nodes

Creates highly available clusters in different regions

Low latency

38. What is the default service type in Kubernetes?

CusterIP

NodePort

serviceType

loadBalancer

39. Which is not a service type in Kubernetes?

ClusterIP

NodePort

Ingress

LoadBalancer

ExternalName

40. What is Open Container Initiative 'OCI'?

A protocol for communicating with the kubernetes api

The governing body of the Cloud Native Computing Foundation 'CNCF'

An open standard for managing service mesh in kubernetes

An organization that creates open standards for containers