Your company uses a mission-critical database named DB1, which is located on a server named SQL1. You want to mirror DB1 on a second server named SQL2. Before you can establish database mirroring, you need to prepare DB1 and the servers for mirroring. Which three actions should you perform?（）

• A、 Set the recovery model of DB1 on SQL1 to bulk-logged recovery. 
• B、 Set the recovery model of DB1 on SQL1 to full recovery. 
• C、 Back up DB1 on SQL1. Restore the backup on SQL2; specify the NORECOVERY option. 
• D、 Back up DB1 on SQL1. Restore the backup on SQL2; specify the STANDBY option. 
• E、 Back up DB1 on SQL1. Restore the backup on SQL2; specify the RECOVERY option.
• F、 Create endpoints on all participating servers. 
• G、 Set the AutoShrink property of DB1 on SQL1 to false.