Database Management Systems Quiz

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Questions and Answers

Which of the following is NOT a key concept in database management systems (DBMS)?

Data storage
Data manipulation
Data encryption (correct)
Data modeling

Which of the following is NOT a type of database model used in DBMS?

Network model
Hierarchical model
Relational model
Linear model (correct)

Which of the following is NOT a function of a database management system (DBMS)?

Data validation
Data compression (correct)
Data retrieval
Data backup and recovery

What are the key concepts in database management systems (DBMS)?

Data, Database, Database Management System (DBMS), Data Model, Data Independence, Data Integrity, Data Security, Query Language, Data Manipulation Language (DML), Data Definition Language (DDL) Signup and view all the answers

What are the functions of a database management system (DBMS)?

Data storage, Data retrieval, Data manipulation, Data security, Data concurrency control, Data recovery, Data integrity Signup and view all the answers

What are the types of database models used in DBMS?

Hierarchical model, Network model, Relational model, Object-oriented model Signup and view all the answers

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Study Notes

Database Management Systems (DBMS)

Key concepts in DBMS include:
- Data definition
- Data manipulation
- Data administration
- Database design
- Data security
- Data integrity
- Query optimization
- Concurrency control

Functions of a DBMS

A DBMS performs several functions, including:
- Data creation and updating
- Data storage and retrieval
- Data security and access control
- Data backup and recovery
- Data concurrency and integrity control
- Query optimization and processing

Types of Database Models

DBMS uses various database models, such as:
- Relational model
- Network model
- Hierarchical model
- Object-oriented model
- Object-relational model
- Entity-relationship model