1. Describe the client/server architecture. Explain the client role. Explain the server role. Give an example.

2.The relational model relies on primary keys to identify entities and on foreign keys to create relationships to preserve the integrity (validity) of the keys. Discuss the two rules that ensure the integrity of keys within a database.

3. Explain the importance of determining relationships before establishing primary keys in the design sequence.

4.When constructing a database, two rules are followed by the database designer to ensure the integrity of keys. Describe each rule and discuss common violations.