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Linux Foundation KCNA Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Cloud Native Architecture	16%	- Architecture Concepts 1. Elasticity and Resilience 2. Microservices Architecture 3. Autoscaling (HPA, VPA, Cluster Autoscaler) 4. Serverless and FaaS - Cloud Native Landscape 1. CNCF Project Categories (Sandbox, Incubating, Graduated) 2. CNCF Role and Governance - Infrastructure and Practices 1. Infrastructure as Code (IaC) 2. DevOps Practices and Culture 3. Immutable Infrastructure
Topic 2: Container Orchestration	22%	- Networking 1. CoreDNS and Service Networking 2. Kubernetes Networking Model - Orchestration Fundamentals 1. Self-healing and Rolling Updates 2. Scheduling and Resource Management 3. Service Discovery and Load Balancing - Container Runtimes 1. Docker, containerd, CRI-O - Security 1. Network Policies 2. Pod Security Standards (Admission Control) 3. RBAC (Role-Based Access Control) - Service Mesh 1. Sidecar Pattern and Traffic Management 2. Service Mesh Concepts (Istio, Linkerd) - Storage 1. Storage Classes and Dynamic Provisioning 2. Volumes, PersistentVolumes (PV), PersistentVolumeClaims (PVC)
Topic 3: Kubernetes Fundamentals	46%	- Scheduling 1. Resource Requests and Limits 2. Taints and Tolerations 3. Node Selection and Affinity - Kubernetes API 1. API Resource Structure and Versioning 2. Declarative Management (Manifests/YAML) - Kubernetes Architecture 1. Control Plane Components (API Server, etcd, Scheduler, Controller Manager) 2. Worker Node Components (Kubelet, Kube-proxy, Container Runtime) - Containers 1. Basic kubectl Commands 2. Container Images and Registries 3. Container Runtime Interface (CRI) - Kubernetes Resources 1. Workload Resources (Pods, Deployments, StatefulSets, DaemonSets, ReplicaSets, Jobs, CronJobs) 2. Configuration Resources (ConfigMaps, Secrets) 3. Networking Resources (Services, Ingress)
Topic 4: Cloud Native Application Delivery	8%	- GitOps 1. Tools (Argo CD, Flux) 2. GitOps Principles and Workflow - CI/CD 1. Artifact Management and Image Registries 2. Continuous Integration and Continuous Delivery Pipelines - Deployment Strategies 1. Blue/Green, Canary, Rolling Updates
Topic 5: Cloud Native Observability	8%	- Logging 1. Kubernetes Logging Architecture 2. Centralized Logging (Fluentd, Elasticsearch, Kibana) - Monitoring and Metrics 1. Prometheus and Metrics Collection 2. Dashboards and Visualization (Grafana) - Tracing 1. Distributed Tracing Concepts (OpenTelemetry, Jaeger)

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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q342-Q347):

NEW QUESTION # 342
What is a Kubernetes service with no cluster IP address called?

A. Specless Service
B. Headless Service
C. IPLess Service
D. Nodeless Service

Answer: B

NEW QUESTION # 343
What components are common in a service mesh?

A. data plane and runtime plane
B. circuit breaking and Pod scheduling
C. tracing and log storage
D. service proxy and control plane

Answer: D

NEW QUESTION # 344
In a Kubernetes environment, how is an Argo CD ApplicationSet configured to ensure continuous deployment of an application?

A. By defining the ApplicationSet in a YAML file and linking it to a Git repository containing application manifests.
B. By defining the ApplicationSet containing deployment parameters and applying it with kubectl.
C. By manually deploying the application using kubectl commands every time changes are made.
D. By using a Helm chart to package the application and deploying it directly without GitOps.

Answer: A

Explanation:
An Argo CD ApplicationSet is defined declaratively and connected to a Git repository that contains the application manifests. Argo CD continuously monitors the repository and automatically syncs the cluster state with the desired state defined in Git, enabling continuous deployment.

NEW QUESTION # 345
The IPv4/IPv6 dual stack in Kubernetes:

A. Allows you to access the IPv4 address by using the IPv6 address.
B. Translates an IPv4 request from a service to an IPv6 service.
C. Allows you to create IPv4 and IPv6 dual stack services.
D. Requires NetworkPolicies to prevent services from mixing requests.

Answer: C

NEW QUESTION # 346
What is the purpose of a Kubernetes Ingress resource in the context of CI/CD and application deployment?

A. To define the health checks for a Deployment.
B. To manage the communication between pods within a deployment.
C. To provide a single entry point for external traffic to access services within the cluster.
D. To configure automated rollbacks during deployment failures.
E. To define the desired number of replicas for a Deployment.

Answer: C

Explanation:
Ingress resources act as a reverse proxy, routing external traffic to specific services within your Kubernetes cluster. This is crucial for CI/CD pipelines, allowing you to access and test deployed applications from external networks.

NEW QUESTION # 347
......

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