Which option would you use to send an e-mail to the senior database administrator?

You want the database to send an e-mail to the senior database administrator whenever the Warning threshold for the Database CPU time metric is reached. Which option would you use to accomplish this activity?

A.
the DBMS_MAIL package

B.
the DBMS_PIPE package

C.
the DBMS_HTTP package

D.
the DBMS_ALERT package

E.
the Database Control page

Explanation:
Use Database Control for Database Management to manage your database locally. If you choose this option, you can additionally check Enable Email Notifications for Oracle to e-mail you alerts regarding potential problems, and check Enable Daily Backup.

REF: Oracle(r) 10g Database 2 Day DBA, 2-8