34 Questions
What is the primary key to organizational survival?
Good decision making
What is the result of processing raw data to reveal meaning?
Information
What is the primary purpose of storing data in a database?
To manage data efficiently
What is the relationship between data and information?
Data is raw facts and information is processed data
What is a characteristic of data?
It is a raw fact that can be recorded and has an implicit meaning
What is the primary reason for understanding file system characteristics?
To understand how databases evolved
What does program-data independence enable?
Changing data storage structures without having to change the DBMS access programs
What is the primary function of concurrency control in a DBMS?
To guarantee correct execution or complete abortion of each transaction
What is the advantage of using the database approach in terms of data storage?
Reducing data redundancy
What is the purpose of data abstraction in a DBMS?
To hide storage details and present the users with a conceptual view of the database
What is a major part of database applications?
OLTP (Online Transaction Processing)
What is an advantage of using the database approach in terms of data security?
Restricting unauthorized access to data
What is the primary activity of the DP department?
Programming
What is the main problem with file systems in terms of data management?
All of the above
What is the significance of structural independence?
Change file structure without affecting data access
What is the main advantage of DBMS over file systems?
Elimination of most file system problems
What is a characteristic of a well-designed database?
Facilitates data management
What is the role of a DBMS in terms of data storage?
Creates and manages complex structures required for data storage
What is data redundancy, and what does it lead to?
All of the above
What is the purpose of a data dictionary in a DBMS?
To store definitions of data elements and relationships
What is the significance of data independence?
Change data storage characteristics without affecting data access
What is a characteristic of a poorly designed database?
Causes difficult-to-trace errors
What is the primary function of a Database Management System (DBMS)?
To store and manage data
What is the main difference between data and information?
Data is raw while information is processed
What is the purpose of metadata in a database?
To provide data about data
What is the term for the combination of the DBMS software and the data itself?
Database System
What is the role of a DBMS in concurrent processing and sharing?
To allow multiple users to access the database simultaneously
What is the primary goal of having accurate, relevant, and timely information?
To make informed decisions
What type of access did magnetic tapes provide for data storage?
Sequential access
Who defined the relational data model and later won the ACM Turing Award?
Ted Codd
What type of database systems emerged in the 1990s?
Object-oriented database systems
What was the primary focus of database research and development in the 1980s?
Parallel and distributed database systems
In what decade did relational DBMS products emerge?
1980s
What type of database systems were widely used in the late 1960s and 1970s?
Hierarchical and Network data models
This quiz covers the basics of database management systems, including data, information, and knowledge. It also explores the concept of a database and DBMS, and their roles in storing and managing data.
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