SQL Servers installation and access (Cyber Security)

 Using your textbook, the Internet, and any other suitable references, answer the following questions in your own words. Save your answers in a single file (minimum length of a full page of content).  Remember to include any sources that you use.

1. Why would you perform a silent installation?
2. Under what circumstances would a system administrator lose access to an instance of SQL Server? Give an example.
   
3. Oracle offers a free download of all editions of the Oracle Database.  How does the company derive benefits from this approach?