フリー問題

問題文

In a design where worker nodes sit on an isolated internal network and the management node is the only route outward, an administrator has to decide which segment each management controller attaches to. Which arrangement is typical and why?

選択肢

1. The controllers on the worker nodes attach to the internal segment while the controller on the management node attaches to a segment reachable from outside, so operators can still reach the cluster when the internal side is down.
2. The controllers do not need to attach to any network segment, so the addressing plan can leave them out entirely and an operator reaches each machine through whichever path the node itself is using.
3. All controllers attach to the internal segment, including the one on the management node, and keeping every management interface on one segment is what makes the addressing plan simple enough to maintain by hand.
4. All controllers attach to the segment reachable from outside, since that is the only way an operator can reach a worker node when the internal network has a problem.