Exam
CKAD
CKAD · Application Observability and Maintenance
Fix Service Selector
In namespace default, Deployment web-store is running, but the Service web-svc that should route traffic to it is returning no endpoints - requests never reach the Pods.
Live lab access
This task description is public. Live practice requires full access unless this is the selected free weekly task. See this week's free task.
Create an account to continue →
On a phone? Read the task and create your account here, then sign in on a desktop or laptop for the terminal lab. Nothing starts until you choose Start.
The task
Task
In namespace default, Deployment web-store is running, but the Service web-svc that should route traffic to it is returning no endpoints - requests never reach the Pods.
Goal
Investigate why the Service is not selecting the Deployment's Pods, then correct the Service so it routes to the web-store Pods.
This exercises reading a Service selector, comparing it against the Pod labels, and fixing the mismatch - one of the most common CKAD troubleshooting patterns.
What this tests
Configure liveness, readiness, and startup probes, read logs, and debug running workloads. On the CKAD exam, Application Observability and Maintenance tasks are graded purely on what you build in the cluster - not multiple choice - so the only way to get faster is to do them on a real cluster against a clock.
Practice it for real
The public description lets you study the task before signing up. Full access includes this live lab; the selected Task of the Week is free with an account. You solve the task in a real terminal, hit validate, and a programmatic checker scores exactly what you got right and wrong (with partial credit). You can open the solution while practising, then retry and use the failed checks to improve your score.