フリー問題

問題文

A Service already gives a workload a stable address inside the cluster. What does a Route add?

選択肢

1. It gives the workload a second address inside the cluster so that the traffic which arrives on the first one can be separated from the traffic which arrives on the second, which is how two versions of the same workload are kept apart from each other during a gradual replacement.
2. It limits which Pods the Service may select.
3. It exposes that Service under a host name that clients outside the cluster can reach, through the ingress point of the cluster.
4. It replaces the Service, which is then no longer needed.