A team runs a legacy application that only exposes a TCP port for health checks. The application can hang, but the TCP port remains open. The team wants to restart the container if the application hangs. Which probe configuration should they use?

readinessProbe with tcpSocket port 8080

livenessProbe with tcpSocket port 8080

startupProbe with tcpSocket port 8080

livenessProbe with exec command that checks application state

Which YAML snippet correctly defines an HTTP GET liveness probe for a container?

probe: type: liveness httpGet: path: /healthz port: 8080

livenessProbe: httpGet: url: /healthz port: 8080

livenessProbe: http: path: /healthz port: 8080

livenessProbe: httpGet: path: /healthz port: 8080

In a Pod spec, where are probe definitions placed?

Under spec.containers[].livenessProbe, readinessProbe, and startupProbe

Under spec.template.spec.probes

A team has a Deployment YAML for a web app. They want to add a readiness probe that checks an HTTP endpoint /ready on port 8080, with a 5-second timeout and a check every 10 seconds. Which snippet should be added to the container spec?

readinessProbe: httpGet: path: /healthz port: 8080 timeoutSeconds: 5 periodSeconds: 10

livenessProbe: httpGet: path: /ready port: 8080 timeoutSeconds: 5 periodSeconds: 10

readinessProbe: httpGet: path: /ready port: 8080 timeoutSeconds: 5 periodSeconds: 10

readinessProbe: tcpSocket: port: 8080 timeoutSeconds: 5 periodSeconds: 10

Certified Kubernetes Application Developer (CKAD)

Domain 3Objective 1

Implement Probes and Health Checks CKAD Practice Questions (Page 3)

Part of the Application Observability and Maintenance domain, which accounts for 15% of the CKAD exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 2–3 from this objective — we provide 19 practice questions to prepare you well beyond it. (estimate)

19questions here

4free pages

7concepts

15%of the exam

Questions 11–15

11application · medium
A team runs a legacy application that only exposes a TCP port for health checks. The application can hang, but the TCP port remains open. The team wants to restart the container if the application hangs. Which probe configuration should they use?
Select an answer first
12foundation · easy
Which YAML snippet correctly defines an HTTP GET liveness probe for a container?
Select an answer first
13foundation · easy
In a Pod spec, where are probe definitions placed?
Select an answer first
14application · medium
A team has a Deployment YAML for a web app. They want to add a readiness probe that checks an HTTP endpoint /ready on port 8080, with a 5-second timeout and a check every 10 seconds. Which snippet should be added to the container spec?
Select an answer first
15foundation · easy
Which probe handler type considers the probe successful when a TCP connection can be established to a specified port?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to CKAD

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Linux Foundation. “CKAD” is a trademark of its owner, used for identification only.