Question: Question 1 (a) Define the terms below: i. Attribute ii. Domain iii. Entity iv. Relationship v. Entity set vi. Relationship set vii. One-to-many relationship viii.

Question 1 (a) Define the terms below: i. Attribute ii. Domain iii. Entity iv. Relationship v. Entity set vi. Relationship set vii. One-to-many relationship viii. Many-to-many relationship (16 marks) (b) Explain the term transaction and identify FOUR (4) characteristics of a DBMS transaction? (3 marks) (c) Why does a DBMS interleave the actions of dierent transactions instead of executing transactions one after the other? (3 marks) (d) Explain the strict two-phase locking protocol. (3 marks) (Total: 25 marks)

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