A Database Management System (DBMS) is software that enables users to define, create, maintain, and control access to the database. It provides an interface between the user and the database, ensuring data consistency, security, and integrity.

Key components include:

• Data Definition Language (DDL): For defining schema (CREATE, ALTER, DROP).
• Data Manipulation Language (DML): For managing data (SELECT, INSERT, UPDATE, DELETE).
• Data Control Language (DCL): For access control (GRANT, REVOKE).

Question 1:

Which data structure is ordered, changeable, and allows duplicate members?

1. Tuple
2. Set
3. List
4. Dictionary

Question 2:

Explain the difference between a list and a tuple in Python.