A school-district Pod runs a main API container and a sidecar. How do those containers reach each other on the network by default?
Select an answer to reveal the explanation.
Short Explanation
Containers in one Pod are roommates sharing one network stack—localhost and one Pod IP for all of them. They do not need a Service just to whisper to each other.
Full Explanation
All containers in a Pod share a network namespace, including the same IP and port space; localhost communication between sidecar and main container is normal. Separate Pod IPs apply between Pods, not between containers of the same Pod. Sidecars are not automatically placed on hostNetwork.