Vote Lab: CKA Mock Exam 3 (Question 3 )

Kubernetes
#1

Solve this question on: ssh cluster3-controlplane

Part I:

Create a ClusterIP service with name of service-3421-svcn in the spectra-1267 namespace, which should expose the pods, namely, pod-23 and pod-21, with port set to 8080 and targetport to 80.

Part II:

Store the pod names and their IP addresses from the spectra-1267 namespace at /root/pod_ips_cka05_svcn where the output is sorted by their IPs.

Please ensure the format as shown below:

POD_NAME        IP_ADDR
pod-1           ip-1
pod-3           ip-2
pod-2           ip-3
...

My solution:

cluster3-controlplane ~ ➜ k -n spectra-1267 get svc service-3421-svcn -o yaml
apiVersion: v1
kind: Service
metadata:
creationTimestamp: “2026-03-18T09:04:52Z”
labels:
mode: exam
type: external
name: service-3421-svcn
namespace: spectra-1267
resourceVersion: “2146”
uid: e4644947-d853-423a-a43f-58f986c69a83
spec:
clusterIP: 10.43.94.241
clusterIPs:

  • 10.43.94.241
    internalTrafficPolicy: Cluster
    ipFamilies:
  • IPv4
    ipFamilyPolicy: SingleStack
    ports:
  • port: 8080
    protocol: TCP
    targetPort: 80
    selector:
    mode: exam
    type: external
    sessionAffinity: None
    type: ClusterIP
    status:
    loadBalancer: {}

Failed as exam solution
cluster3-controlplane ~ ➜ cat service-3421-svcn.yaml
apiVersion: v1
kind: Service
metadata:
creationTimestamp: null
labels:
app: service-3421-svcn
name: service-3421-svcn
namespace: spectra-1267
spec:
ports:

  • name: 8080-80
    port: 8080
    protocol: TCP
    targetPort: 80
    selector:
    app: service-3421-svcn # delete
    mode: exam # add
    type: external # add
    type: ClusterIP
    status:
    loadBalancer: {}

help me

#2

cluster3-controlplane ~ ➜ cat /root/pod_ips_cka05_svcn
POD_NAME IP_ADDR
pod-12 10.22.0.10
pod-21 10.22.0.13
pod-23 10.22.0.11
pod-32 10.22.0.15
pod-34 10.22.0.12
pod-43 10.22.0.14

cluster3-controlplane ~ ➜

#3

How did you generate/populate the pod_ips_cka05_svcn file?
What command did you run?

#4

Hint: use -o custom-columns

#5

Via custom column only using json path.
For ip status.list of pod ips [*].ip