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Kubernetes and Cloud Native Associate KCNA Practice Test

997 questions with instant explanations, domain breakdown, and wrong-answer analysis. Built for the real exam.

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Domain score breakdown
Real exam: 90 min
Pass mark: 750%

Sample questions with explanations

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Q1Cloud Native Architecturemedium
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A company wants to migrate its monolithic application to a cloud-native architecture on Kubernetes. The application currently uses a shared database and communicates via internal HTTP calls. Which design pattern should be applied first to increase resilience and enable independent scaling of components?

AAdopt CQRS pattern to separate reads and writes
Use the strangler fig pattern to gradually replace monolith functionalityCorrect
CImplement database-per-service pattern
DDeploy a sidecar container for each service

The strangler fig pattern is the correct first step because it allows the team to incrementally replace specific functionalities of the monolithic application with microservices without disrupting the existing system. This pattern routes requests to either the old monolith or new…Read full explanation

Q2Cloud Native Architectureeasy
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A cloud-native application is designed with multiple microservices that need to handle a sudden spike in traffic without manual intervention. Which Kubernetes feature best enables this?

AVerticalPodAutoscaler
BCluster Autoscaler
HorizontalPodAutoscalerCorrect
DPodDisruptionBudget

The HorizontalPodAutoscaler (HPA) automatically scales the number of pod replicas in a deployment based on observed CPU/memory utilization or custom metrics. This directly addresses the need to handle a sudden traffic spike without manual intervention by adding more pod instances…Read full explanation

Q3Cloud Native Architecturehard
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A team is designing a cloud-native system that must maintain high availability across multiple cloud regions. The application uses Kubernetes clusters in each region. Which approach best ensures that the system can tolerate a full region failure while minimizing complexity?

ADeploy a single Kubernetes cluster spanning all regions
Use a global load balancer with active-passive regional failoverCorrect
CRun active-active in all regions with synchronous data replication
DImplement manual failover procedures documented in runbooks

Option B is correct because a global load balancer with active-passive regional failover provides a straightforward way to route traffic to a healthy secondary region when the primary fails, without the complexity of multi-region Kubernetes control planes or synchronous replicati…Read full explanation

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