Question 16 :
The DBMS ranked as being the "easiest to use" in the text is Oracle Corporation's Oracle.
Question 17 :
Database applications are seldom intended for use by a single user.
Question 18 :
The DBMS ranked as being the "hardest to use" in the text is Microsoft's SQL Server.
Question 19 :
In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.