Describe how administrators can examine what configuration changes have been made:

1. Through the audit trail (at Setup | Security Controls).

2. It will show the 20 most; recent setup changes, you can download a complete history for the last 180 days

3. There are over three dozen items tracked (see "Monitoring Setup Changes" in help)

4. Alternatively, you might use Dream factory's Snapshot or other Metadata API-based tools.