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Linux-Foundation


KCNA


Kubernetes and Cloud Native Associate (KCNA)


https://killexams.com/pass4sure/exam-detail/KCNA


Question: 30


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

  1. Jaeger

  2. Vitess

  3. Argo

  4. Kubernetes


Answer: A Explanation:

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



Question: 31


What is scheduling in Kubernetes

  1. Determining when to execute a cron-job

  2. Assigning pods to nodes

  3. Joining a new nodes to the clusters

  4. Setting a time for automated tasks


Answer: B

Explanation: https://kubernetes.io/docs/concepts/scheduling-eviction/


Graphical user interface, application Description automatically generated Question: 32

Which of the following are characteristics of Statefulsets?

  1. Ordered, graceful deployment and scaling

  2. Creates replica sets

  3. Uses headless services


Answer: A Explanation:

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



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Question: 33


Which control plane component is responsible for scheduling pods?

  1. kube-proxy

  2. kube scheduler

  3. kubelet

  4. kube api-server


Answer: B Explanation:

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



Graphical user interface, text, application Description automatically generated Question: 34

What is a benefits of Kubernetes federation?

  1. Avoids scalability limits on pods and nodes

  2. Creates highly available clusters in different regions

  3. Low latency


Answer: A,B,C


Question: 35


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

  1. Gauge

  2. Histogram

  3. Summary

  4. Counter


Answer: A Explanation:

https://prometheus.io/docs/concepts/metric_types/#gauge



Graphical user interface, text Description automatically generated Question: 36

What is OPA?

  1. Open Permission Agent

  2. Online Policy Audit

  3. Open Policy Agent

  4. Offline Policy Accessor


Answer: C Explanation:

https://www.cncf.io/projects/open-policy-agent-opa/


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Question: 37


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

  1. kube scheduler

  2. etcd (pronounce: esty-d)

  3. kube api-server

  4. kube-proxy


Answer: D Explanation:

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



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

  1. Service Account

  2. Role-based access control ‘RBAC’

  3. Deployment


Answer: B Explanation:

https://kubernetes.io/docs/reference/access-authn-authz/authorization/



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

  1. Site reliability engineer ‘SRE’

  2. DevOps

  3. GitOps

  4. Security and compliance engineer

  5. Developer


Answer: A Explanation:

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



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Question: 40


Which is NOT a use case for the Kubernetes dashboard?

  1. Troubleshooting any issues with applications

  2. Managing running applications

  3. Installing new Kubernetes cluster

  4. Managing the entire Kubernetes cluster


Answer: C