Kubernetes and Cloud Native Associate (KCNA) Practice Test
KCNA Exam Format | Course Contents | Course Outline | Exam Syllabus | Exam Objectives
Number of Questions: Approximately 60-70 questions.
Question Types: Multiple-choice, multiple-select, and true/false.
Duration: 90 minutes (1.5 hours).
Passing Score: The passing score is not publicly disclosed by CNCF.
Language: English.
Delivery Mode: Online proctored exam.
- Kubernetes Architecture:
- Master node components (API Server, Scheduler, Controller Manager, etcd)
- Worker node components (kubelet, kube-proxy, container runtime)
- Cluster communication and networking
- Kubernetes Objects:
- Pods, Deployments, Services, ConfigMaps, Secrets, Namespaces
- ReplicaSets, StatefulSets, DaemonSets
- Jobs and CronJobs
- Kubernetes Operations:
- Basic kubectl commands (create, get, describe, delete, apply)
- Debugging and troubleshooting
- Resource management (requests, limits, quotas)
- Pod, Node, Cluster
- API Server, etcd, kubelet
- YAML, manifest files
- Declarative vs. imperative commands
- Container Basics:
- Containerization concepts (Docker, container images, registries)
- Container lifecycle (start, stop, restart)
- Orchestration Features:
- Scaling applications (manual and autoscaling)
- Rolling updates and rollbacks
- Self-healing and fault tolerance
- Networking and Storage:
- Kubernetes networking model (Pod networking, Services, Ingress)
- Persistent Volumes (PVs) and Persistent Volume Claims (PVCs)
- Storage Classes
- Docker, OCI (Open Container Initiative)
- Horizontal Pod Autoscaler (HPA)
- ClusterIP, NodePort, LoadBalancer
- Ingress Controller, CNI (Container Network Interface)
- Cloud-Native Principles:
- Microservices architecture
- DevOps and CI/CD pipelines
- Infrastructure as Code (IaC)
- Cloud-Native Tools:
- Helm (package manager for Kubernetes)
- Prometheus (monitoring and alerting)
- Envoy (service proxy)
- Istio (service mesh)
- Cloud-Native Security:
- Role-Based Access Control (RBAC)
- Network policies
- Secrets management
- Microservices, monoliths
- CI/CD, GitOps
- Helm charts, Istio sidecar
- RBAC, NetworkPolicy
- Design Principles:
- Scalability, resilience, and portability
- Twelve-Factor App methodology
- Deployment Strategies:
- Blue-green deployments
- Canary deployments
- A/B testing
- Observability and Monitoring:
- Logging, metrics, and tracing
- Tools like Fluentd, Jaeger, and Grafana
- Twelve-Factor App
- Blue-green deployment, Canary release
- Observability, tracing, metrics
- CNCF Projects:
- Overview of CNCF projects
- Kubernetes
- Prometheus
- Envoy
- Helm
- Graduated, incubating, and sandbox projects
- Open Source and Community:
- Contribution to open-source projects
- CNCF community and resources
- Multi-Cloud and Hybrid Cloud:
- Running Kubernetes across multiple clouds
- Hybrid cloud strategies
- CNCF landscape
- Graduated projects, incubating projects
- Multi-cloud, hybrid cloud
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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?
A. Jaeger
B. Vitess
C. Argo
D. Kubernetes
Answer: A
Explanation:
https://github.com/cncf/landscape#trail-map
Question: 31
What is scheduling in Kubernetes
A. Determining when to execute a cron-job
B. Assigning pods to nodes
C. Joining a new nodes to the clusters
D. Setting a time for automated tasks
Answer: B
Explanation:
https://kubernetes.io/docs/concepts/scheduling-eviction/
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Question: 32
Which of the following are characteristics of Statefulsets?
A. Ordered, graceful deployment and scaling
B. Creates replica sets
C. 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?
A. kube-proxy
B. kube scheduler
C. kubelet
D. kube api-server
Answer: B
Explanation:
https://kubernetes.io/docs/concepts/overview/components/
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Question: 34
What is a benefits of Kubernetes federation?
A. Avoids scalability limits on pods and nodes
B. Creates highly available clusters in different regions
C. Low latency
Answer: A,B,C
Question: 35
Which prometheus metric type represents a single number value that can increase and decrease over time?
A. Gauge
B. Histogram
C. Summary
D. Counter
Answer: A
Explanation:
https://prometheus.io/docs/concepts/metric_types/#gauge
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Question: 36
What is OPA?
A. Open Permission Agent
B. Online Policy Audit
C. Open Policy Agent
D. 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?
A. kube scheduler
B. etcd (pronounce: esty-d)
C. kube api-server
D. kube-proxy
Answer: D
Explanation:
https://kubernetes.io/docs/concepts/overview/components/
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Question: 38
Which access control component of Kubernetes is responsible for authorization and decides what requestor is allowed
to do?
A. Service Account
B. Role-based access control RBAC
C. Deployment
Answer: B
Explanation:
https://kubernetes.io/docs/reference/access-authn-authz/authorization/
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Question: 39
Which role is responsible of creating service level indicator SLI, service level objective SLO, & Service Level
Agreements SLA
A. Site reliability engineer SRE
B. DevOps
C. GitOps
D. Security and compliance engineer
E. 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?
A. Troubleshooting any issues with applications
B. Managing running applications
C. Installing new Kubernetes cluster
D. Managing the entire Kubernetes cluster
Answer: C
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