フリー問題

問題文

The operators want a copy of live submissions handed to a rebuilt test system so that its behavior can be compared, while visitors must see no change at all. Which capability is being described?

選択肢

1. The requirement describes the parting arrangement, and using the duplicated delivery would divide live submissions between the two systems rather than sending each of them twice.
2. The requirement describes the parting arrangement, and using the apportioned delivery would divide live submissions between the two systems rather than sending each of them twice.
3. The requirement describes the shadowing arrangement, and using the duplicated delivery would divide live submissions between the two systems rather than sending each of them twice.
4. The requirement describes the shadowing arrangement, and using the apportioned delivery would divide live submissions between the two systems rather than sending each of them twice.