Challenges

Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.

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This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Kubernetes Pod Scheduling: nodeSelector and Node Affinity

by Kaloyan Preslavski

Start with nodeSelector for simple node targeting, then upgrade to node affinity for expressive matching that nodeSelector cannot handle.

node-selector node-affinity scheduling ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Kubernetes Pod Scheduling: Quality of Service Classes

by Kaloyan Preslavski

See how Kubernetes determines BestEffort, Burstable, and Guaranteed classes from resource configuration - and which pods get evicted first under pressure.

qos resource-requests scheduling ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Kubernetes Pod Scheduling: Resource Requests

by Kaloyan Preslavski

See how CPU and memory requests influence where pods land - and what happens when no node can fit them.

scheduling ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Kubernetes Pod Scheduling: Topology Spread Constraints

by Kaloyan Preslavski

Spread pods evenly across nodes and availability zones using maxSkew and zone-aware topology keys.

topology-spread scheduling ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Kubernetes Pod Scheduling: Pod Affinity and Anti-Affinity

by Kaloyan Preslavski

Co-locate pods that belong together and keep apart pods that should not share a node using affinity and anti-affinity rules.

pod-affinity anti-affinity scheduling ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge, Easy, on Kubernetes

Manually Schedule Deployment Pods on a Specific Node

by Omkar Shelke

Create a Deployment with specific scheduling, labels, and port configuration, then expose it externally using a NodePort Service.

cka ckad deployment service scheduling