フリー問題

問題文

An audit requirement states that full account numbers must never appear in any stored record on the delivery tier, while the same tier must still let investigators follow one member's activity across a whole day. The architect must satisfy both at once. Which pairing of controls does that?

選択肢

1. The stored records satisfy the requirement through the batching step applied before writing, and investigators keep their trail through the rotating identifier the same records still carry.
2. The stored records satisfy the requirement through the masking step applied before writing, and investigators keep their trail through the rotating identifier the same records still carry.
3. The stored records satisfy the requirement through the masking step applied before writing, and investigators keep their trail through the persistent identifier the same records still carry.
4. The stored records satisfy the requirement through the batching step applied before writing, and investigators keep their trail through the persistent identifier the same records still carry.