You are developing an application that connects to a Microsoft SQL Server database using the SqlConnection object. Your connection objects are being pooled. As the pool fills up, connection requests are queued. Some connection requests are rejected. You need to ensure that the application releases connections back to the pool as soon as possible. Also, you need to decrease the likelihood that connection requests will be rejected.

Which three actions should you perform?（）

You are a network administrator for your company. All servers run Windows Server 2003.
A network server named Server1 functions as the main file server. Server1 is backed up each night by using the Backup utility. You perform a test restoration of Server1 by using the Backup utility. You discover that files that are open during the backup process are not being backed up.
You need to ensure that open files are backed up successfully.
What should you do? （）