sebject : Database System Design and Management :please can you answer this :Please provide detailed and descriptive answer to all question 1) Explain mandatory participation is an entity relationship and provide an example. (12 points) 2) Explain multivalued attributes. Provide real world examples. (12 points) 3) Describe what are SQL functions. Describe the important features and applications of functions. Provide three(3) example of SQL functions and scenario/application where do you use them. (12 points) 4) Explain the concept of logical design and list the steps involved in logical design. (12 points) 5) List and describe security goals for database. (10 points) 6) Describe DBAs managerial role, technical role and DBAs role in the cloud..