Kubernetes CKA sample exam question 20 with answer

Question
List the InternalIP of all nodes of the cluster. Save the results to a file /root/Internal_IP_List.txt
Answer should be in the format: InternalIP of First Node{{ space }}InternalIP of Second Node (in a single line)

Answer
Get the environment details:

kubectl get nodes -o wide

we can see the IPs
You can find a partial answer to this question in Kubernetes Documentation in the kubectl Cheat Sheet page where you have the same query but for External IPs:

# Get ExternalIPs of all nodes
kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="ExternalIP")].address}'

Navigate to that page, get the query and modify it in the following way:

kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="InternalIP")].address}'

Redirect the output to the file per requirements:

kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="InternalIP")].address}' > /root/Internal_IP_List.txt

Verify:

cat /root/Internal_IP_List.txt