Practice on 2023 LATEST KCNA Exam Updated 128 Questions [Q66-Q91]

Practice on 2023 LATEST KCNA Exam Updated 128 Questions

Download Latest KCNA Dumps with Authentic Real Exam QA's

Linux Foundation KCNA Exam Syllabus Topics:

Topic	Details
Topic 1	Kubernetes Architecture, Kubernetes Fundamentals, Kubernetes Resources, Kubernetes API
Topic 2	Community and Governance, Roles and Personas Cloud Native Architecture1
Topic 3	Application Delivery Fundamentals GitOps, CI CD Cloud Native Application Delivery
Topic 4	Container Orchestration Fundamentals Container Orchestration, Networking, Service Mesh, Security
Topic 5	Telemetry & Observability Cloud Native Observability

 

NEW QUESTION 66
What is etcd used for in Kubernetes?

• A. Network routing for the cluster
• B. Kubernetes API security
• C. Backend object storage for the Kubernetes API
• D. Integration with cloud platforms

Answer: C

Explanation:
etcd serves as a distributed object store that backs the Kubernetes API.

 

NEW QUESTION 67
Which tool is built on the GitOps toolkit?

• A. Flux
• B. Jenkins
• C. ArgoCD
• D. GitHub Workflow & Actions
• E. Jenkins-X
• F. Travis CI

Answer: A

Explanation:
https://fluxcd.io/#gitops-toolkit

Note: Argo CD is a GitOps tool and not using GitOps toolkit

 

NEW QUESTION 68
What is the functionality of the daemon set?

• A. To initialize the pod before starting the main pod
• B. To run a copy of the pod in all the nodes of the cluster
• C. To run a copy of the pod in a single node of the cluster

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/

 

NEW QUESTION 69
What is the command used to scale the application?

• A. kubectl explain
• B. kubectl run
• C. kubectl scale

Answer: C

Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#scale

 

NEW QUESTION 70
Notary and the update framework leading security projects in CNCF

• A. TRUE
• B. FALSE

Answer: A

Explanation:
https://github.com/cncf/landscape#trail-map

 

NEW QUESTION 71
To specify a Kubernetes object which language is used?

• A. Python
• B. YAML
• C. Go
• D. JSON
• E. Node

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/kubernetes-objects/

 

NEW QUESTION 72
Which style of operations are preferred for K8S and cloud native applications?

• A. Declarative
• B. JSON
• C. Imperative

Answer: A

Explanation:
https://kubernetes.io/docs/tasks/manage-kubernetes-objects/declarative-config/#trade-offs

 

NEW QUESTION 73
What are default kubernetes namespaces?

• A. default, kube-public, kube-systems, kube-node-lease
• B. default, kube-public, kube-system, kube-node-leases
• C. kube-default, kube-public, kube-system, kube-node-lease
• D. default, kube-public, kube-system, kube-node-lease

Answer: D

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

 

NEW QUESTION 74
What is the name of the Kubernetes agent that runs on each worker nodes?

• A. pod
• B. systemd
• C. kubelet
• D. kube-proxy

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/overview/components/

 

NEW QUESTION 75
What are the two goals of Cloud-Native?

• A. Slow innovation and stable applications
• B. Rapid innovation and automation
• C. Rapid innovation and reliability
• D. Frequent deployments and well-defined organizational silos

Answer: C

Explanation:
https://www.redhat.com/en/topics/cloud-native-apps

 

NEW QUESTION 76
How does service logical group set of pods?

• A. Using IP address
• B. Using hostname
• C. Using label and selectors

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/services-networking/service/

 

NEW QUESTION 77
Which of the following are not the metrics for Site Reliability Engineering?

• A. Service Level Agreements 'SLA'
• B. Service Level Indicators 'SLI'
• C. Service Level Definition 'SLD'
• D. Service Level Objectives 'SLO'

Answer: C

Explanation:
SLI defined quantitative measure of some aspect of the level of service that is provided.
SLOs are key to making data-driven decisions about reliability, they're at the core of SRE practic-es.
SLAs an explicit or implicit contract with your users that includes consequences of meeting (or missing) the SLOs they contain.

 

NEW QUESTION 78
Which part of a Kubernetes cluster is responsible for running container workloads?

• A. Worker Node
• B. etcd
• C. Control plane
• D. kube-proxy

Answer: A

Explanation:
Worker Nodes are responsible for executing containerized workloads.

 

NEW QUESTION 79
A ________ is a ready-to-run software package, containing everything needed to run an application.

• A. Container Repository
• B. Docker
• C. Container Image
• D. Container Runtime

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/containers/#container-images

 

NEW QUESTION 80
Which control plane component is responsible for scheduling pods?

• A. kube api-server
• B. kubelet
• C. kube scheduler
• D. kube-proxy

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/overview/components/

 

NEW QUESTION 81
The Kubernetes API provides an interface for storing objects. Which of the following describes the type of objects stored by the Kubernetes API?

• A. ETCD
• B. Containers
• C. REST
• D. YAML

Answer: C

Explanation:
Kubernetes objects are RESTful objects.

 

NEW QUESTION 82
What is the command used to login to the pod?

• A. kubectl login
• B. kubectl exec
• C. kubectl get
• D. kubectl list

Answer: B

Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#exec

 

NEW QUESTION 83
What is autoscaling?

• A. Automatically repairing broken application instances
• B. Automatically measuring resource usage
• C. Automatically assigning workloads to nodes in a cluster
• 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 84
What is the use of labels in Kubernetes?

• A. It is used to assign key-value pair to an object
• B. It is used to assign a name to an object.
• C. It is used to assign annotation to an object
• D. All of the options

Answer: A

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

 

NEW QUESTION 85
What are cluster-wide objects

• A. Volumes and Nodes
• B. ConfigMaps and Secrets
• C. Service and Pods

Answer: A

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/_print/

 

NEW QUESTION 86
What framework allows developers to write code without worrying about the servers and operating systems they will run on?

• A. Serverless
• B. Docker
• C. Virtualization
• D. Kubernetes

Answer: A

 

NEW QUESTION 87
What do control groups provide when it come to containers

• A. Logging
• B. Isolation
• C. Permission
• D. Image Storage

Answer: B

Explanation:

 

NEW QUESTION 88
Which component of the kubernetes control-plane (master) are all requests to deploy and manage objects posted to?

• A. ETCD
• B. Kube-proxy
• C. Kubelet
• D. API Server
• E. Controller Manager

Answer: D

Explanation:
https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/

 

NEW QUESTION 89
Which of the following container runtime is planned to be deprecated in Kubernetes 1.20 and high-er?

• A. cri-o
• B. None of the options
• C. docker
• D. podman
• E. containerd

Answer: C

Explanation:
https://kubernetes.io/blog/2020/12/02/dont-panic-kubernetes-and-docker/

 

NEW QUESTION 90
What can you use to add new resource types to your cluster?

• A. CustomResourceDefinitions
• B. CRI-O
• C. Flux
• D. init container
• E. start container

Answer: A

Explanation:
https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/

 

NEW QUESTION 91
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