Questions from Database Systems

Q: Discuss the importance of data modeling.

Discuss the importance of data modeling.

Q: What is an ERDM, and what role does it play in

What is an ERDM, and what role does it play in the modern (production) database environment?

Q: What is a relationship, and what three types of relationships exist

What is a relationship, and what three types of relationships exist?

Q: Give an example of each of the three types of relationships.

Give an example of each of the three types of relationships.

Q: What is a table, and what role does it play in

What is a table, and what role does it play in the relational model?

Q: What is a relational diagram? Give an example.

What is a relational diagram? Give an example.

Q: What is connectivity? (Use a Crow’s Foot ERD to illustrate

What is connectivity? (Use a Crow’s Foot ERD to illustrate connectivity.)

Q: Describe the Big Data phenomenon.

Describe the Big Data phenomenon.

Q: What does the term “3 vs” refers to?

What does the term “3 vs” refers to?

Q: What is Haddop and what are its basic components?

What is Haddop and what are its basic components?