Database Management Systems

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What is the primary key to organizational survival?

Good file system characteristics
Good decision making (correct)
Good information processing
Good data management

What is the result of processing raw data to reveal meaning?

Knowledge
Information (correct)
Wisdom
Data

What is the primary purpose of storing data in a database?

To process information
To store raw facts
To manage data efficiently (correct)
To make good decisions

What is the relationship between data and information?

Data is raw facts and information is processed data (A) Signup and view all the answers

What is a characteristic of data?

It is a raw fact that can be recorded and has an implicit meaning (A) Signup and view all the answers

What is the primary reason for understanding file system characteristics?

To understand how databases evolved (D) Signup and view all the answers

What does program-data independence enable?

Changing data storage structures without having to change the DBMS access programs (D) Signup and view all the answers

What is the primary function of concurrency control in a DBMS?

To guarantee correct execution or complete abortion of each transaction (D) Signup and view all the answers

What is the advantage of using the database approach in terms of data storage?

Reducing data redundancy (C) Signup and view all the answers

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 (D) Signup and view all the answers

What is a major part of database applications?

OLTP (Online Transaction Processing) (D) Signup and view all the answers

What is an advantage of using the database approach in terms of data security?

Restricting unauthorized access to data (B) Signup and view all the answers

What is the primary activity of the DP department?

Programming (A) Signup and view all the answers

What is the main problem with file systems in terms of data management?

All of the above (D) Signup and view all the answers

What is the significance of structural independence?

Change file structure without affecting data access (A) Signup and view all the answers

What is the main advantage of DBMS over file systems?

Elimination of most file system problems (C) Signup and view all the answers

What is a characteristic of a well-designed database?

Facilitates data management (A) Signup and view all the answers

What is the role of a DBMS in terms of data storage?

Creates and manages complex structures required for data storage (B) Signup and view all the answers

What is data redundancy, and what does it lead to?

All of the above (D) Signup and view all the answers

What is the purpose of a data dictionary in a DBMS?

To store definitions of data elements and relationships (C) Signup and view all the answers

What is the significance of data independence?

Change data storage characteristics without affecting data access (D) Signup and view all the answers

What is a characteristic of a poorly designed database?

Causes difficult-to-trace errors (C) Signup and view all the answers

What is the primary function of a Database Management System (DBMS)?

To store and manage data (D) Signup and view all the answers

What is the main difference between data and information?

Data is raw while information is processed (A) Signup and view all the answers

What is the purpose of metadata in a database?

To provide data about data (C) Signup and view all the answers

What is the term for the combination of the DBMS software and the data itself?

Database System (A) Signup and view all the answers

What is the role of a DBMS in concurrent processing and sharing?

To allow multiple users to access the database simultaneously (C) Signup and view all the answers

What is the primary goal of having accurate, relevant, and timely information?

To make informed decisions (C) Signup and view all the answers

What type of access did magnetic tapes provide for data storage?

Sequential access (A) Signup and view all the answers

Who defined the relational data model and later won the ACM Turing Award?

Ted Codd (C) Signup and view all the answers

What type of database systems emerged in the 1990s?

Object-oriented database systems (D) Signup and view all the answers

What was the primary focus of database research and development in the 1980s?

Parallel and distributed database systems (B) Signup and view all the answers

In what decade did relational DBMS products emerge?

1980s (D) Signup and view all the answers

What type of database systems were widely used in the late 1960s and 1970s?

Hierarchical and Network data models (A) Signup and view all the answers

Database Management Systems

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Questions and Answers

What is the primary key to organizational survival?

What is the result of processing raw data to reveal meaning?

What is the primary purpose of storing data in a database?

What is the relationship between data and information?

What is a characteristic of data?

What is the primary reason for understanding file system characteristics?

What does program-data independence enable?

What is the primary function of concurrency control in a DBMS?

What is the advantage of using the database approach in terms of data storage?

What is the purpose of data abstraction in a DBMS?

What is a major part of database applications?

What is an advantage of using the database approach in terms of data security?

What is the primary activity of the DP department?

What is the main problem with file systems in terms of data management?

What is the significance of structural independence?

What is the main advantage of DBMS over file systems?

What is a characteristic of a well-designed database?

What is the role of a DBMS in terms of data storage?

What is data redundancy, and what does it lead to?

What is the purpose of a data dictionary in a DBMS?

What is the significance of data independence?

What is a characteristic of a poorly designed database?

What is the primary function of a Database Management System (DBMS)?

What is the main difference between data and information?

What is the purpose of metadata in a database?

What is the term for the combination of the DBMS software and the data itself?

What is the role of a DBMS in concurrent processing and sharing?

What is the primary goal of having accurate, relevant, and timely information?

What type of access did magnetic tapes provide for data storage?

Who defined the relational data model and later won the ACM Turing Award?

What type of database systems emerged in the 1990s?

What was the primary focus of database research and development in the 1980s?

In what decade did relational DBMS products emerge?

What type of database systems were widely used in the late 1960s and 1970s?

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