What two things happen when the CRS Publisher Database on an HRDB expansion server fails?（）
- AAll call processing immediately begins using the CRS Subscriber Database.
- BCalls in queue are dropped.
- CAgent calls are dropped.
- DAgents are automatically logged out.
- ECRS configuration changes are blocked until the CRS Publisher Database is restored and synchronized with the CRS Subscriber Database.
- FConfiguration changes are buffered until the CRS Publisher Database is restored.