Vertexplus Technologies Senior Linux System Administrator Interview Questions and Answers

Headless services in Kubernetes are used for stateful applications that require stable network identities.

• Headless services do not have a cluster IP address

• They are used for stateful applications that require stable network identities

• They return the IP addresses of the pods directly

• They are defined by setting the cluster IP to None in the service definition

Yes, we can create a new keypair in AWS.

• Go to the EC2 dashboard in AWS console

• Select the instance for which the keypair needs to be replaced

• Stop the instance

• Detach the root volume

• Launch a new instance and create a new keypair

• Attach the root volume to the new instance

• Start the new instance with the new keypair