Schulung Certified Kubernetes Application Developer CKAD with Effective Exam Preparation

• Ziele und Erwartungen der Teilnehmenden
  • Klärung individueller Lernziele und Erwartungen für ein praxisnahes und relevantes Seminar
• Introduction to Kubernetes and containerization
  • Overview of Kubernetes concepts and architecture
  • Understanding containers and containerization principles
• Setting up a Kubernetes Cluster
  • Local cluster setup using tools like Minikube or Kind
  • Cloud-based cluster setup using platforms like Google Kubernetes Engine (GKE) or Amazon Elastic Kubernetes Service (EKS)
• Deploying Pods and ReplicaSets
  • Creating and managing Pods
  • Understanding ReplicaSets and managing application replicas
• Deploying and Managing Deployments
  • Working with Deployments for application lifecycle management
  • Scaling, updating, and rolling back applications
• Services and Networking
  • Understanding service types (ClusterIP, NodePort, LoadBalancer)
  • Exposing applications for internal and external access
  • Service discovery and load balancing
• ConfigMaps and Secrets
  • Managing application configuration using ConfigMaps
  • Securing sensitive information with Secrets
• Persistent Volumes and Persistent Volume Claims
  • Understanding storage concepts in Kubernetes
  • Provisioning and managing Persistent Volumes
  • Claiming and using Persistent Volume Claims in applications
• StatefulSets and Stateful Applications
  • Working with StatefulSets for managing stateful applications
  • Handling pod identity and ordering
  • Understanding headless services for stateful application discovery
• Jobs and CronJobs
  • Running batch processes with Jobs
  • Scheduling and automating tasks with CronJobs
• Security and Resource Managemen t
  • Understanding Kubernetes security mechanisms
  • Role-Based Access Control (RBAC) and pod security policies
  • Resource limits and requests for managing cluster resources
• Application Observability and Troubleshooting
  • Logging and monitoring in Kubernetes
  • Troubleshooting common issues and debugging applications
• Exam Preparation and Practice
  • Reviewing CKAD exam format and requirements
  • Solving practice exercises and sample questions
  • Tips and strategies for effective exam preparation
    
    

Sample Questions:
Which Kubernetes resource is used to manage and deploy individual containers?
a) Pod
b) Service
c) Deployment
d) PersistentVolume

How can you scale a Deployment named "frontend" to have three replicas?
a) kubectl scale deployment frontend --replicas=3
b) kubectl resize deployment frontend --replicas=3
c) kubectl update deployment frontend --replicas=3
d) kubectl apply -f frontend-deployment.yaml --replicas=3

How can you update the image of a Deployment named "backend" to use the latest version?
a) kubectl update deployment backend --image=your-updated-image:latest
b) kubectl set image deployment/backend backend=your-updated-image:latest
c) kubectl apply -f backend-deployment.yaml --image=your-updated-image:latest
d) kubectl edit deployment backend --image=your-updated-image:latest

How can you expose the "web" Pods on port 8080 using a Service named "web-service"?
a) kubectl expose deployment web --name=web-service --port=8080
b) kubectl create service web --name=web-service --port=8080
c) kubectl apply -f web-service.yaml
d) kubectl create service clusterip web --name=web-service --port=8080

What is the access mode for a Persistent Volume that allows ReadWriteOnce access?
a) ReadWriteMany
b) ReadOnlyMany
c) ReadWriteOnce
d) ReadOnlyOnce

Which storage type can be used for a Persistent Volume with host-based storage?
a) nfs
b) hostPath
c) azureDisk
d) gcePersistentDisk

How can you mount a Persistent Volume Claim named "data-claim" to the "/data" directory of a Pod?
a) Use the "mountPath" field in the Pod's specification.
b) Use the "volumeMounts" field in the Pod's specification.
c) Use the "persistentVolumeClaim" field in the Pod's specification.
d) Use the "volumes" field in the Pod's specification.

How can you implement a liveness probe for a container named "api" in a Deployment named "web" to perform an HTTP GET request to "/health" on port 8080?
a) Use the "readinessProbe" field in the container's specification.
b) Use the "livenessProbe" field in the container's specification.
c) Use the "healthProbe" field in the Deployment's specification.
d) Use the "probe" field in the Pod's specification.

What could be a possible cause if a Pod is in a pending state and not scheduling correctly?
a) Insufficient resources in the cluster.
b) Incorrect Pod specification.
c) Network connectivity issues.
d) Misconfigured container image.

What could be a possible cause if a Service is not accessible from within the cluster?
a) Incorrect Service configuration.
b) Firewall blocking the Service's port.
c) Pod not associated with the Service.
d) Misconfigured DNS resolution.