Question: Explain how the following set operations work: ( 7 marks ) a . Union b . IExplain how the following set operations work: ( 7

Explain how the following set operations work: (7 marks)
a. Union
b. IExplain how the following set operations work: (7 marks)
a. Union
b. Intersection
c. Difference
2. Discuss the four characteristics of Object-Oriented Programming. (8 marks)
3. Define the following terms: (10 marks)
a. Database
b. Record
c. Field
d. Primary Key
e. Foreign Keyntersection
c. Difference
2. Discuss the four characteristics of Object-Oriented Programming. (8 marks)
3. Define the following terms: (10 marks)
a. Database
b. Record
c. Field
d. Primary Key
e. Foreign Key

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