Short questions: 1. Name three components of relational data model 2. A university maintains records of Students and Subjects. Students enroll in subjects through Enrollment. Identify the relationship between Student and Subject. Long questions: 1. Design a Cross Reference Matrix for a Loan Application System. Use any three reports and seven attributes of your choice and show which attributes are used in which reports. 2. XYZ Laundry Service provides online laundry services. A customer submits an online pickup request. The laundry worker collects the clothes from the customer, washes and cleans them, and then returns the cleaned clothes to the customer. Draw a Context Level Data Flow Diagram (Context DFD) for the given system.