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Kubernetes and Cloud Native Associate (KCNA) Questions and Answers

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Questions # 1:

What are container runtimes with Kubernetes?

Options:

CRI-O

lxd

containerd

Dockershim

Answer

A, C

Explanation

https://kubernetes.io/docs/setup/production-environment/container-runtimes/

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Questions # 2:

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

Options:

Developer

DevSecOps

Site Reliability Engineer (SRE)

Security and Compliance Engineer

DevOps

Answer

Explanation

SREs create SLAs, SLOs, and SLIs to define and implement standards for application and infra-structure reliability.

Questions # 3:

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

Options:

Site reliability engineer 'SRE'

DevOps

GitOps

Security and compliance engineer

Developer

Answer

Explanation

https://www.atlassian.com/incident-management/kpis/sla-vs-slo-vs-sli

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Questions # 4:

What are default kubernetes namespaces?

Options:

default, kube-public, kube-system, kube-node-lease

kube-default, kube-public, kube-system, kube-node-lease

default, kube-public, kube-systems, kube-node-lease

default, kube-public, kube-system, kube-node-leases

Answer

Explanation

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

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Questions # 5:

Which of the following computing model doesn’t require you to provision infrastructure?

Options:

None of the above

Bare Metal

Compute Engine

Virtual Machines

Serverless

Answer

Explanation

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Questions # 6:

Which of the following are characteristics of Statefulsets?

Options:

Ordered, graceful deployment and scaling

Creates replica sets

Uses headless services

Answer

Explanation

https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/

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Questions # 7:

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

Options:

Worker Node

kube-proxy

Control plane

etcd

Answer

Explanation

Worker Nodes are responsible for executing containerized workloads.

Questions # 8:

How can persistent volume be provisioned?

Options:

Automatically

Bootstrap

Dynamically

Answer

Explanation

https://kubernetes.io/docs/concepts/storage/persistent-volumes/

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Questions # 9:

What CNCF project is the leading DNS project in the CNCF landscape?

Options:

Kubernetes

gRPC

KubeDNS

CoreDNS

Answer

Explanation

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

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Questions # 10:

How can you achieve cost optimization in the cloud environment?

Options:

Use On Demand instances

Use Spot Instances

Use Reserved Instances

Use Bare Metal

Answer

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