Part of SQL which accesses and manipulates data in tables, is called DML.

Part of SQL which controls transactions, is called TCL.

Assertion. A database is centrally stored data and a DBMS is a system to manage the database.

Reason. DBMS is a database management system, which is a software managing the databases.

Assertion. Data redundancy may lead to data inconsistency.

Reason. When redundant data or the multiple copies of data mismatch, it makes the data inconsistent.