14. which commercial rdbms product was the first to hit the market and is the biggest?
a. sql server
b. oracle
c. mysql
d. access

Idon understand these and need some ! ?

What is the first step in creating a maintenance ?

When is an original work considered public domain? a. when posted via social media b. when it is posted on the internet c. when a copyright symbol is not included with the piece of work d. when explicit permission is given by the author / owner