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Linux Foundation KCNA Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Kubernetes Fundamentals46%- Containers
  • 1. Container Images and Registries
  • 2. Basic kubectl Commands
  • 3. Container Runtime Interface (CRI)
- Scheduling
  • 1. Node Selection and Affinity
  • 2. Taints and Tolerations
  • 3. Resource Requests and Limits
- Kubernetes API
  • 1. Declarative Management (Manifests/YAML)
  • 2. API Resource Structure and Versioning
- Kubernetes Architecture
  • 1. Worker Node Components (Kubelet, Kube-proxy, Container Runtime)
  • 2. Control Plane Components (API Server, etcd, Scheduler, Controller Manager)
- Kubernetes Resources
  • 1. Configuration Resources (ConfigMaps, Secrets)
  • 2. Workload Resources (Pods, Deployments, StatefulSets, DaemonSets, ReplicaSets, Jobs, CronJobs)
  • 3. Networking Resources (Services, Ingress)
Topic 2: Cloud Native Application Delivery8%- GitOps
  • 1. Tools (Argo CD, Flux)
  • 2. GitOps Principles and Workflow
- CI/CD
  • 1. Continuous Integration and Continuous Delivery Pipelines
  • 2. Artifact Management and Image Registries
- Deployment Strategies
  • 1. Blue/Green, Canary, Rolling Updates
Topic 3: Cloud Native Observability8%- Logging
  • 1. Centralized Logging (Fluentd, Elasticsearch, Kibana)
  • 2. Kubernetes Logging Architecture
- Monitoring and Metrics
  • 1. Prometheus and Metrics Collection
  • 2. Dashboards and Visualization (Grafana)
- Tracing
  • 1. Distributed Tracing Concepts (OpenTelemetry, Jaeger)
Topic 4: Cloud Native Architecture16%- Infrastructure and Practices
  • 1. DevOps Practices and Culture
  • 2. Infrastructure as Code (IaC)
  • 3. Immutable Infrastructure
- Architecture Concepts
  • 1. Microservices Architecture
  • 2. Elasticity and Resilience
  • 3. Autoscaling (HPA, VPA, Cluster Autoscaler)
  • 4. Serverless and FaaS
- Cloud Native Landscape
  • 1. CNCF Role and Governance
  • 2. CNCF Project Categories (Sandbox, Incubating, Graduated)
Topic 5: Container Orchestration22%- Service Mesh
  • 1. Service Mesh Concepts (Istio, Linkerd)
  • 2. Sidecar Pattern and Traffic Management
- Orchestration Fundamentals
  • 1. Self-healing and Rolling Updates
  • 2. Scheduling and Resource Management
  • 3. Service Discovery and Load Balancing
- Security
  • 1. Pod Security Standards (Admission Control)
  • 2. RBAC (Role-Based Access Control)
  • 3. Network Policies
- Storage
  • 1. Storage Classes and Dynamic Provisioning
  • 2. Volumes, PersistentVolumes (PV), PersistentVolumeClaims (PVC)
- Container Runtimes
  • 1. Docker, containerd, CRI-O
- Networking
  • 1. Kubernetes Networking Model
  • 2. CoreDNS and Service Networking

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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q197-Q202):

NEW QUESTION # 197
In Kubernetes, what is the general purpose of certificates for cluster components?

Answer: D

Explanation:
Certificates provide identity verification and encrypted TLS communication between Kubernetes components, including the API server, kubelets, controllers, schedulers, and other trusted clients.


NEW QUESTION # 198
What fields must exist in any Kubernetes object (e.g. YAML) file?

Answer: C

Explanation:
Any Kubernetes object manifest must include apiVersion, kind, and metadata, which makes A correct. This comes directly from how Kubernetes resources are represented and processed by the API server.
apiVersion tells Kubernetes which API group and version should be used to interpret the object (for example v1, apps/v1, batch/v1). This matters because schemas and available fields can change between versions.
kind specifies the type of object you are creating (for example Pod, Service, Deployment, ConfigMap). Kubernetes uses this to route the request to the correct API endpoint and schema.
metadata contains identifying and organizational information such as name, namespace (when namespaced), labels, and annotations. At minimum, most objects require a name; labels and annotations are optional but extremely common for selection and tooling.
A common point of confusion is spec. Many Kubernetes objects include spec because they define desired state (like a Deployment's replica count, Pod template, update strategy). However, the question asks what fields must exist in any Kubernetes object file. Not all objects require a spec in the same way (and some objects include other top-level sections like data for ConfigMaps/Secrets or rules for RBAC objects). The truly universal top-level requirements are the trio in option A.
Options B, C, and D include fields that are not universally required (namespace is not required for cluster-scoped objects, and data only applies to certain kinds like ConfigMaps/Secrets). Therefore, apiVersion + kind + metadata is the correct, general rule and matches Kubernetes object structure.


NEW QUESTION # 199
You have a Kubernetes cluster running on Google Kubernetes Engine (GKE). Your application requires persistent storage for its dat
a. Which GKE feature would you use to provision persistent volumes for your pods?

Answer: A

Explanation:
PersistentVolumeClaim (PVC) is the primary mechanism for requesting persistent storage in Kubernetes. It allows pods to request a specific amount of storage with desired access modes (Read-Only, ReadWriteOnce, ReadWriteMany). GKE integrates with PVCs to provision persistent volumes from underlying storage solutions like Google Cloud Persistent Disks.


NEW QUESTION # 200
What sentence is true about CronJobs in Kubernetes?

Answer: B

Explanation:
The true statement is A: a Kubernetes CronJob creates Jobs on a repeating schedule. CronJob is a controller designed for time-based execution. You define a schedule using standard cron syntax (minute, hour, day-of-month, month, day-of-week), and when the schedule triggers, the CronJob controller creates a Job object. Then the Job controller creates one or more Pods to run the task to completion.
Option B is incorrect because CronJobs do not "create one container"; they create Jobs, and Jobs create Pods (which may contain one or multiple containers). Option C is wrong because CronJobs are a core Kubernetes workload primitive for recurring tasks and remain widely used for periodic work like backups, batch processing, and cleanup. Option D is wrong because Kubernetes CronJobs intentionally use cron-like scheduling expressions; the format aligns with the cron concept (with Kubernetes-specific controller behavior around missed runs, concurrency, and history).
CronJobs also provide operational controls you don't get from plain Linux cron on a node:
concurrencyPolicy (Allow/Forbid/Replace) to manage overlapping runs
startingDeadlineSeconds to control how missed schedules are handled
history limits for successful/failed Jobs to avoid clutter
integration with Kubernetes RBAC, Secrets, ConfigMaps, and volumes for consistent runtime configuration consistent execution environment via container images, not ad-hoc node scripts Because the CronJob creates Jobs as first-class API objects, you get observability (events/status), predictable retries, and lifecycle management. That's why the accurate statement is A.


NEW QUESTION # 201
Which file in a Helm chart is responsible for defining the default configuration values that can be overridden during deployment?

Answer: B

Explanation:
The values.yaml file defines the default configuration values for a Helm chart, which can be overridden by users at deployment time to customize the behavior of the chart.


NEW QUESTION # 202
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