18 Questions
One of the advantages of using the database approach is to allow unauthorized access to data.
False
Object-oriented DBMSs provide storage structures for efficient query processing.
True
The database approach does not provide persistent storage for program objects.
False
The database approach does not allow for the sharing of data among multiple users.
False
The database approach does not enforce integrity constraints on the database.
False
Using the database approach does not reduce application development time.
False
A conceptual data model represents the physical storage of the database.
False
In the database approach, the DBMS catalog stores the actual data of the database.
False
Data abstraction is used to present the users with a physical view of the database.
False
A data model is used to describe the relationships between entities in the database.
True
Program-data independence allows changing the DBMS software without having to change the data structures.
False
The self-describing nature of a database system allows the DBMS software to work with different database applications.
True
In a database, a single user view is imposed on all users.
False
Data modeling focuses on data storage details rather than data model constructs.
False
Database systems do not support multi-user transaction processing.
False
OLTP allows only a single transaction to execute per second.
False
Database users can be divided into only two categories.
False
The recovery subsystem ensures that transactions are only temporarily recorded in the database.
False
This quiz covers a conceptual data model example, including entities and relationships such as sections, courses, students, instructors, and departments. It highlights the mini-world relationships between these entities, including course prerequisites and department offerings.
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