KCNA Exam Questions
215 real KCNA exam questions with expert-verified answers and explanations. Page 1 of 5.
- Question #1Cloud Native Observability
Which is the correct kubectl command to display logs in real time?
kubectllogsreal-timeobservability - Question #2Kubernetes Fundamentals
How to load and generate data required before the Pod startup?
Init ContainersPod LifecycleVolume SharingApplication Initialization - Question #3Cloud Native Application Delivery
What is the core functionality of GitOps tools like Argo CD and Flux?
GitOpsArgo CDFluxContinuous Delivery - Question #4Kubernetes Fundamentals
Which Kubernetes resource workload ensures that all (or some) nodes run a copy of a Pod?
Kubernetes WorkloadsDaemonSetPod Scheduling - Question #5Kubernetes Fundamentals
What is a probe within Kubernetes?
ProbesKubeletContainer HealthHealth Checks - Question #6Container Orchestration
Which Kubernetes feature would you use to guard against split brain scenarios with your distributed application?
StatefulSetDistributed ApplicationsSplit BrainData Consistency - Question #7Kubernetes Fundamentals
What feature must a CNI support to control specific traffic flows for workloads running in Kubernetes?
Kubernetes NetworkingNetwork PoliciesCNINetwork Security - Question #8Kubernetes Fundamentals
What is the main role of the Kubernetes DNS within a cluster?
Kubernetes DNSService DiscoveryCluster NetworkingInter-Service Communication - Question #9Kubernetes Fundamentals
Scenario: You have a Kubernetes cluster hosted in a public cloud provider. When trying to create a Service of type LoadBalancer, the external-ip is stuck in the "Pending" state. Wh...
Kubernetes ServicesLoadBalancer ServiceCloud Controller ManagerCloud Integration - Question #10Cloud Native Architecture
What are the characteristics for building every cloud-native application?
Cloud-native characteristicsResiliencyAgilityObservability - Question #11Cloud Native Architecture
What does CNCF stand for?
CNCFAcronymsCloud NativeFoundations - Question #12Kubernetes Fundamentals
Kubernetes supports multiple virtual clusters backed by the same physical cluster. These virtual clusters are called:
Kubernetes NamespacesVirtual ClustersMulti-tenancyResource Isolation - Question #13Kubernetes Fundamentals
What component enables end users, different parts of the Kubernetes cluster, and external components to communicate with one another?
Kubernetes APICluster communicationControl Plane - Question #14Kubernetes Fundamentals
Which command will list the resource types that exist within a cluster?
kubectlAPI ResourcesCluster InspectionCommand Line Interface - Question #15Kubernetes Fundamentals
Which of these components is part of the Kubernetes Control Plane?
Kubernetes Control PlaneKubernetes ArchitectureCloud Controller ManagerCluster Components - Question #16Kubernetes Fundamentals
Which of the following systems is NOT compatible with the CRI runtime interface standard?
CRIContainer RuntimesKubernetes ComponentsRuntime compatibility - Question #17Kubernetes Fundamentals
What is a key feature of a container network?
Container NetworkingMulti-Host CommunicationDistributed Systems - Question #18Kubernetes Fundamentals
How can you monitor the progress for an updated Deployment/DaemonSets/StatefulSets?
kubectl commandsRollout statusDeployment managementWorkload monitoring - Question #19Cloud Native Architecture
What is the goal of load balancing?
Load BalancingTraffic DistributionApplication ScalingHigh Availability - Question #20Kubernetes Fundamentals
How are ReplicaSets and Deployments related?
Kubernetes DeploymentsKubernetes ReplicaSetsPod managementDeclarative updates - Question #21Kubernetes Fundamentals
What factors influence the Kubernetes scheduler when it places Pods on nodes?
Kubernetes SchedulerPod PlacementNode TaintsPod Affinity - Question #22Cloud Native Observability
What is the core metric type in Prometheus used to represent a single numerical value that can go up and down?
PrometheusMetric TypesGaugeObservability - Question #23Kubernetes Fundamentals
What is the primary mechanism to identify grouped objects in a Kubernetes cluster?
Kubernetes LabelsObject IdentificationGrouping Objects - Question #24Kubernetes Fundamentals
What is the name of the Kubernetes resource used to expose an application?
Kubernetes ServiceNetworkingApplication Exposure - Question #25Container Orchestration
What is a DaemonSet?
DaemonSetKubernetes WorkloadsNode-specific PodsContainer Orchestration - Question #26Cloud Native Observability
What is the telemetry component that represents a series of related distributed events that encode the end-to-end request flow through a distributed system?
ObservabilityDistributed TracingTelemetrySpans - Question #27Kubernetes Fundamentals
In the Kubernetes platform, which component is responsible for running containers?
Kubernetes componentsContainer runtimeCRI-ONode components - Question #28Kubernetes Fundamentals
Services and Pods in Kubernetes are ______ objects.
Kubernetes APIREST APIKubernetes ObjectsPods and Services - Question #29Kubernetes Fundamentals
What Kubernetes component handles network communications inside and outside of a cluster, using operating system packet filtering if available?
Kubernetes componentskube-proxyNetworking - Question #30Kubernetes Fundamentals
What Kubernetes control plane component exposes the programmatic interface used to create, manage and interact with the Kubernetes objects?
Kubernetes Control Planekube-apiserverKubernetes APICore Components - Question #31Kubernetes Fundamentals
Which type of Service requires manual creation of Endpoints?
Kubernetes ServicesEndpointsService SelectorsExternal Services - Question #32Kubernetes Fundamentals
Which of these commands is used to retrieve the documentation and field definitions for a Kubernetes resource?
kubectl explainKubernetes resourcesAPI documentationCLI usage - Question #33Cloud Native Architecture
Which of the following is a lightweight tool that manages traffic flows between services, enforces access policies, and aggregates telemetry data, all without requiring changes to...
Service MeshLinkerdTraffic ManagementTelemetry - Question #34Kubernetes Fundamentals
Which Kubernetes resource uses immutable: true boolean field?
Kubernetes resourcesConfigMapImmutabilityResource configuration - Question #35Kubernetes Fundamentals
Which statement about the Kubernetes network model is correct?
Kubernetes networkingPod communicationNetwork modelNAT - Question #36Kubernetes Fundamentals
What is the resource type used to package sets of containers for scheduling in a cluster?
Kubernetes PodsContainer packagingSchedulingKubernetes resources - Question #37Kubernetes Fundamentals
Can a Kubernetes Service expose multiple ports?
Kubernetes ServiceNetworkingPort Configuration - Question #38Cloud Native Observability
Which persona is normally responsible for defining, testing, and running an incident management process?
Incident ManagementSite Reliability EngineeringProduction OperationsRoles and Responsibilities - Question #39Kubernetes Fundamentals
What is the default deployment strategy in Kubernetes?
Kubernetes DeploymentDeployment StrategyRolling Update - Question #40Kubernetes Fundamentals
Which command provides information about the field replicas within the spec resource of a deployment object?
kubectlDeploymentResource SchemaCLI - Question #41Cloud Native Application Delivery
Which of the following is a responsibility of the governance board of an open source project?
Open Source GovernanceProject RolesCommunity Engagement - Question #42Kubernetes Fundamentals
What is the role of a NetworkPolicy in Kubernetes?
Kubernetes NetworkPolicyPod IsolationNetwork SecurityKubernetes Networking - Question #43Kubernetes Fundamentals
What are the most important resources to guarantee the performance of an etcd cluster?
etcdKubernetes control planePerformance optimizationDistributed systems - Question #44Kubernetes Fundamentals
How do you deploy a workload to Kubernetes without additional tools?
Kubernetes ManifestskubectlWorkload DeploymentCore Kubernetes - Question #46Kubernetes Fundamentals
How to create a headless service?
Kubernetes ServicesHeadless ServicesService Discovery - Question #47Kubernetes Fundamentals
How does dynamic storage provisioning work?
Kubernetes StorageDynamic ProvisioningPersistentVolumeClaimStorageClass - Question #48Kubernetes Fundamentals
Which is an industry-standard container runtime with an "emphasis" on simplicity, robustness, and portability?
container runtimecontainerdOCIcontainerization basics - Question #49Kubernetes Fundamentals
What does vertical scaling an application deployment describe best?
Vertical ScalingApplication ScalingResource Management - Question #50Cloud Native Observability
Which Prometheus metric represents a single value that can go up and down?
PrometheusMetric TypesObservabilityGauge - Question #51Cloud Native Architecture
What is Serverless computing?
Serverless computingBackend as a ServicePay-per-use model