AlwyasOn

Hi All,

I have some question about Always on availability group

1) Is AG is instance level or database level?
2) What will happen when only 1 Db went suspect mode which participating alwyasON (automtic failover)
     Automatic failover will happen or not?

3) Can we make availability database in simple or bulk recovery mode which already participating alwyasON ?

4) If single database is not accessible due to any reason does it automatically get failover?