Podcast
Questions and Answers
What is the main objective of database design in DBMS?
What is the main objective of database design in DBMS?
- To improve data consistency
- To focus on hardware resources only
- To produce logical and physical design models of the proposed database system (correct)
- To reduce disk storage space
Why are properly designed databases considered cost-effective in terms of disk storage space?
Why are properly designed databases considered cost-effective in terms of disk storage space?
- They compress the data to reduce the storage space
- They require high disk space due to complex designs
- They eliminate the need for using any disk storage
- They are efficient in organizing and storing data (correct)
How does database design help in improving data consistency?
How does database design help in improving data consistency?
- By focusing on hardware resources
- By ignoring user requirements
- By randomly storing data elements
- By facilitating proper correlation of data elements (correct)
Which aspect does the logical data model mainly concentrate on?
Which aspect does the logical data model mainly concentrate on?
What does the physical data design model involve?
What does the physical data design model involve?
What is a column in a database?
What is a column in a database?
Which database element gives access to just a single owner for exclusive modification?
Which database element gives access to just a single owner for exclusive modification?
Which process does database design NOT concern itself with?
Which process does database design NOT concern itself with?
What does the internal model focus on in a database?
What does the internal model focus on in a database?
Which model in a database helps understand structures like views, indexes, and constraints?
Which model in a database helps understand structures like views, indexes, and constraints?
What does a database schema represent?
What does a database schema represent?
What is the unique feature of an external model in databases?
What is the unique feature of an external model in databases?
What is the main purpose of data conversion and loading stage in relational databases design?
What is the main purpose of data conversion and loading stage in relational databases design?
Which database design technique helps in reducing data redundancy and eliminating anomalies like Insertion, Update, and Deletion Anomalies?
Which database design technique helps in reducing data redundancy and eliminating anomalies like Insertion, Update, and Deletion Anomalies?
What is the primary purpose of Normalization in SQL?
What is the primary purpose of Normalization in SQL?
What is ER Modeling used for in database design?
What is ER Modeling used for in database design?
Which of the following is NOT considered a database element?
Which of the following is NOT considered a database element?
What is the primary function of a database table?
What is the primary function of a database table?
What is the main focus of the planning stage in the database development life cycle?
What is the main focus of the planning stage in the database development life cycle?
Which stage of the database design process involves developing a database model on paper without any physical implementations?
Which stage of the database design process involves developing a database model on paper without any physical implementations?
Why do small database systems usually have a simpler database design process?
Why do small database systems usually have a simpler database design process?
In a database system, what is the purpose of the physical model stage?
In a database system, what is the purpose of the physical model stage?
Which component of the database development life cycle defines the scope and boundaries of the proposed database system?
Which component of the database development life cycle defines the scope and boundaries of the proposed database system?
What is the primary difference between the logical model and physical model stages in database design?
What is the primary difference between the logical model and physical model stages in database design?
What is an essential requirement of most databases according to the text?
What is an essential requirement of most databases according to the text?
Why are business rules important for a database developer?
Why are business rules important for a database developer?
What is the purpose of enforcing some business rules directly in the database?
What is the purpose of enforcing some business rules directly in the database?
Which building block is NOT mentioned as a fundamental part of data models in the text?
Which building block is NOT mentioned as a fundamental part of data models in the text?
What type of information is typically considered confidential in databases?
What type of information is typically considered confidential in databases?
Why is it important for entities to be related in databases?
Why is it important for entities to be related in databases?
