問題文
A bank will place a standby database in a second Azure region and send the replication over the cross-region path. The network lead has to write into the design record what the link is sized against and what the replication mode leaves the bank exposed to. What does the documented cross-region topology say?
選択肢
- The link has to carry the average rate at which the primary database produces its record of changes over a day, and the replication across regions waits for the far side by default, so the recovery point objective is zero once the standby has caught up.
- The link is sized from the size of the database rather than from the record of changes, and the recovery point objective is settled by the choice of failover mechanism alone.
- The link has to carry the highest rate at which the primary database produces its record of changes, and the replication runs without waiting for the far side, so the recovery point objective stays above zero.
- The link only has to carry the answers that the standby returns, because the record of changes travels over the control plane link, so no exposure follows from the bank's own link.