Podcast
Questions and Answers
What is the main task of a modern database system?
What is the main task of a modern database system?
- To develop a conceptual design for the database
- To define the data elements and relationship for a specified system
- To manage a large, complex collection of data (correct)
- To create a high-level data model
What is the set of allowed values for each attribute called in a database system?
What is the set of allowed values for each attribute called in a database system?
- Domain of the attribute (correct)
- Entity-Relationship diagram
- Relatively large collection of interrelated data
- Relational model
What is the special value 'null' in a database system used to indicate?
What is the special value 'null' in a database system used to indicate?
- The value is relatively large
- The value is highly valuable
- The value is required to be atomic
- The value is 'unknown' (correct)
What does ER model stand for in the context of database systems?
What does ER model stand for in the context of database systems?
What kind of design does ER modeling develop for a database?
What kind of design does ER modeling develop for a database?
In the context of database systems, what is the main purpose of the ER model?
In the context of database systems, what is the main purpose of the ER model?
What does the term 'domain' refer to in a database system?
What does the term 'domain' refer to in a database system?
What is the primary challenge posed by the special value 'null' in a database system?
What is the primary challenge posed by the special value 'null' in a database system?
What is the key characteristic of attribute values in a database system?
What is the key characteristic of attribute values in a database system?
What task does a modern database system primarily perform?
What task does a modern database system primarily perform?
What is the primary purpose of a database system?
What is the primary purpose of a database system?
In the context of database systems, what does DBMS stand for?
In the context of database systems, what does DBMS stand for?
What does ER model stand for in the context of database systems?
What does ER model stand for in the context of database systems?
What is the key characteristic of attribute values in a database system?
What is the key characteristic of attribute values in a database system?
What task does a modern database system primarily perform?
What task does a modern database system primarily perform?
