1. Suppose that there is a database system that never fails. Is a recovery manager required for this system? 2. Database-system implementers have paid much more attention to the ACID properties than...

1. Suppose that there is a database system that never fails. Is a recovery manager required for this system?

2. Database-system implementers have paid much more attention to the ACID properties than have file-system implementers. Why might this be the case?