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Questions and Answers
What is the primary function of a Database Management System (DBMS)?
What is the primary function of a Database Management System (DBMS)?
- To allow direct access to hardware components.
- To replace the need for physical storage devices.
- To ensure data remains unorganized for user convenience.
- To interact with a database and manage its data. (correct)
Which among the following is NOT considered a major component of a database?
Which among the following is NOT considered a major component of a database?
- Reports (correct)
- Data
- Hardware
- Software
What does data integrity in a DBMS primarily ensure?
What does data integrity in a DBMS primarily ensure?
- Users have unrestricted access to manipulate all data.
- Data is accurate, consistent, and reliable. (correct)
- All data can be duplicated without any restrictions.
- Data is only stored for a limited time period.
Which of the following accurately describes metadata?
Which of the following accurately describes metadata?
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What is a primary advantage of a DBMS regarding data sharing?
What is a primary advantage of a DBMS regarding data sharing?
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Study Notes
Database Overview
- Structured data is gathered and stored for future access and updates.
- Utilized by various establishments and applications for managing and manipulating transaction data.
- Can consist of data from various sources, not limited to websites or applications, including physical files in a file system.
Database Management System (DBMS)
- DBMS is a computer application that facilitates interaction with a database.
- It can operate on both local servers and remote systems, enabling flexible access.
Major Components of a Database
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Hardware
- Comprises the physical components of a computer, such as storage drives, input devices (keyboard, mouse), and output devices (monitor).
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Software
- A collection of programs providing a user-friendly interface for managing and manipulating the database.
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Data
- Organized stored information, which can be end-user data (direct input) or metadata (data about data), detailing types, relationships, and constraints.
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Procedures
- Instructions for managing and operating a database management system, encompassing installation, backup, data restoration, and report generation.
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Database Access Language
- A programming language employed for writing commands that perform Create, Read, Update, and Delete (CRUD) operations on the database.
Advantages of DBMS
- Reduces data redundancy, enhancing efficiency and storage.
- Ensures data integrity through consistent and accurate data management.
- Provides data security measures to protect sensitive information.
- Facilitates data sharing among users while maintaining control.
- Supports backup and restoration processes to prevent data loss.
- Improves overall data administration by streamlining management tasks.
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