DBMS Functionality and Concepts

What is one of the key benefits of using the database approach?

Reducing the complexity of data structures
Ensuring data consistency across departments
Avoiding wasteful overlap of resources and personnel (correct)
Increasing data redundancy and data inconsistency

In which decade did Relational DBMS Products emerge?

1980s (correct)
1970s
1990s
1960s

What type of applications led to the introduction of Object-oriented DBMS?

Online transaction systems
CAD and other complex data processing applications (correct)
E-commerce and web applications
Database administration and management

What is the primary purpose of XML in E-commerce applications?

To enable data exchange between different systems (B) Signup and view all the answers

What is the primary characteristic of Hierarchical and Network Models of databases?

They dominated the database market in the 1970s (A) Signup and view all the answers

What is the primary function of a Database Management System?

To provide a convenient and efficient environment for accessing and manipulating data (C) Signup and view all the answers

What is the term used to describe a description of a database?

Database schema (B) Signup and view all the answers

What is the collective term used to describe the DBMS software, the data itself, and sometimes the applications?

Database system (D) Signup and view all the answers

Which of the following industries is likely to use a database to manage reservations and schedules?

Airlines (C) Signup and view all the answers

What is the primary role of a DBMS in an enterprise?

To store information about a particular enterprise (B) Signup and view all the answers

What is the term used to describe a set of programs to access data?

Database management system (C) Signup and view all the answers

What is the primary function of a database application?

To facilitate the creation and maintenance of a database (D) Signup and view all the answers

What is the term used to describe a collection of interrelated data?

Database (A) Signup and view all the answers

What is the primary function of a DBMS in constructing a database?

Defining data types, structures, and constraints (C) Signup and view all the answers

Which of the following is an example of an entity in a UNIVERSITY environment?

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

What is the term for the description of the database stored in a DBMS catalog?

Meta-data (D) Signup and view all the answers

What is the primary purpose of a DBMS in manipulating the database?

Generating reports and querying data (C) Signup and view all the answers

Which of the following is an example of a relationship between entities in a UNIVERSITY environment?

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

What is the term for the ability of a DBMS to provide a layer of abstraction between the physical and logical views of the database?

Abstraction (A) Signup and view all the answers

What is the primary function of a DBMS in terms of concurrent processing and sharing?

Managing concurrent access to the database (C) Signup and view all the answers

What is the term for the ability of a DBMS to present a unified view of the database to users?

Views (C) Signup and view all the answers

What is physical data independence?

The ability to modify the physical schema without changing the logical schema (B) Signup and view all the answers

What is a key aspect of a conceptual data model?

Representation of entities and their relationships (D) Signup and view all the answers

What is an instance in a database system?

The actual content of the database at a particular point in time (C) Signup and view all the answers

What is the primary purpose of a data model?

To describe the abstract representation of data (D) Signup and view all the answers

What is a key characteristic of the database approach?

Sharing of data and multiuser transaction processing (B) Signup and view all the answers

What is a type of data model that is used to describe data semantics?

Entity-Relationship model (B) Signup and view all the answers

What is a key aspect of a schema in a database system?

The logical structure of the database (B) Signup and view all the answers

What is a type of data model that is used to describe data relationships?

Entity-Relationship model (D) Signup and view all the answers

What is the main objective of concurrency control within a DBMS?

To ensure that each transaction is correctly executed or completely aborted (A) Signup and view all the answers

Which category of end-users makes up a large section of the end-user population?

Naïve or Parametric End-users (B) Signup and view all the answers

What is the primary responsibility of Database Designers?

Defining the content, structure, and constraints of the database (D) Signup and view all the answers

Which of the following users interacts with the system through DML calls?

Database Developers/Programmers (B) Signup and view all the answers

What is the primary role of Database Administrators?

Authorizing access to the database and monitoring its use (A) Signup and view all the answers

Which category of end-users access the database occasionally when needed?

Casual End-users (D) Signup and view all the answers

What is the primary responsibility of Database Developers/Programmers?

Developing database applications (B) Signup and view all the answers

Who are the 'Workers Behind the Scene' in the context of database systems?

Database Designers and Developers (B) Signup and view all the answers

What is a key advantage of using a database approach in terms of data structure?

Flexibility to change data structures (C) Signup and view all the answers

Which decade saw the introduction of Relational Model based Systems?

1970s (A) Signup and view all the answers

What is the primary use of XML in E-commerce applications?

To facilitate data exchange between systems (A) Signup and view all the answers

What is a characteristic of Hierarchical and Network Models of databases?

They are still widely used today (C) Signup and view all the answers

What is the primary benefit of consolidating data and applications across departments?

Avoidance of wasteful overlap of resources and personnel (B) Signup and view all the answers

What type of applications led to the development of Object-oriented DBMS?

Complex data processing in CAD (B) Signup and view all the answers

What is the primary characteristic of a relational database management system?

It is used for on-line transaction systems (B) Signup and view all the answers

What is a key advantage of using a database approach in terms of information availability?

Availability of up-to-date information (A) Signup and view all the answers