MSDB AND MODELDB

HI TO ALL,

1. WHEN MSDB & MODEL DB CRASHED BEFORE TAKING BACKUP WHAT ACTION SHOULD BE TAKEN IN PRODUCTION LEVEL?

2. HOW MANY DATA FILES AND LOG FILES CAN BE CREATED FOR 1 SERVER / 1 DATABASE IN PRODUCTION ?

3 . IN PRODUCTION WE CAN SHRINK THE TEMP DB / ANY OTHER SYSTEM DB'S? IF SO HOW?

4. IN PRODUCTION LEVEL WHAT IS THE DAILY ACTIVITIES OF SQL DBA?

5. HOW MANY WAYS (NOT LIKE FULL,DIFF,T-LOG) CAN WE TAKE BACKUP OF A DATABASE?

THANKS IN ADVANCE

M.KIRAN KUMAR