問題文
A financial firm must keep transaction records so that they cannot be modified or deleted for a fixed number of years. Separately, when litigation arises, specific records must be frozen for an undetermined period until legal clears them. Which combination of immutable storage features matches these two needs?
選択肢
- Blob soft delete for both, with different retention periods
- Blob versioning for the fixed period, and a resource lock for the freeze
- A time-based retention policy for the fixed period, and a legal hold for the indefinite freeze that lasts until it is explicitly cleared
- A legal hold for the fixed period, and a time-based retention policy for the indefinite freeze, because a time-based policy stays in effect until an administrator explicitly clears it