Database Management Systems Quiz
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Questions and Answers

What is a primary advantage of using a database over traditional file organization?

  • It complicates data access and management.
  • Data is stored in separate files for each application.
  • It increases redundancy across multiple systems.
  • Data is centralized, reducing redundancy. (correct)

Which of the following best describes a Database Management System (DBMS)?

  • Software that organizes and manages data systematically. (correct)
  • A manual process of data entry and retrieval.
  • Hardware that physically stores data.
  • A collection of files maintained individually by applications.

Which feature is typically included in a DBMS?

  • Management of security and access controls. (correct)
  • Automatic data entry without user input.
  • Exclusively storing data in cloud systems.
  • Manual file sorting capabilities.

What does a DBMS primarily allow users to do with databases?

<p>Create, modify, and query databases. (B)</p> Signup and view all the answers

What role does a centralized database play in a corporation's information systems?

<p>It supports multiple applications using a single data source. (D)</p> Signup and view all the answers

Which feature of a DBMS is primarily responsible for ensuring that multiple users can access the database without conflicts?

<p>Concurrency Control (D)</p> Signup and view all the answers

What is the main purpose of the Data Manipulation Language (DML) in a DBMS?

<p>To perform queries and interact with databases (A)</p> Signup and view all the answers

Which advantage of a DBMS helps in minimizing redundant data?

<p>Data Redundancy and Inconsistency Reduction (A)</p> Signup and view all the answers

What does 'Uncoupling of Data and Programs' in a DBMS imply?

<p>Programs depend less on specific data structures managed by the DBMS (A)</p> Signup and view all the answers

Which of the following is NOT a mechanism provided by a DBMS for data management?

<p>Data Mining (D)</p> Signup and view all the answers

Flashcards

DBMS

Software that organizes and manages data in a structured database.

Database

Centralized data collection for multiple applications.

Data redundancy

Storing the same data in multiple places.

Database advantage

Centralized data reduces redundancy and improves efficiency.

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DBMS functions

Manages data access, security, storage, and retrieval.

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DBMS Data Modeling

Creating and modifying data models to define database structure and relationships.

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DBMS Concurrency Control

Managing simultaneous database access by multiple users, preventing data conflicts.

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SQL

Standard language for interacting with databases, performing queries & database actions.

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DBMS Data Redundancy

Minimizing repeated data to avoid inconsistencies by centralizing it.

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DBMS Data Integrity

Enforcing rules and constraints to maintain data accuracy and consistency.

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