Database Systems Chapter 1

<p>Raw facts of interest to the user, provided by a data warehouse or created by users. (A)</p> Signup and view all the answers

<p>Metadata provides context, descriptions, and relationships of data making the database easier to understand and use. (D)</p> Signup and view all the answers

<p>A graph showing sales trends over time. (B)</p> Signup and view all the answers

<p>Good decision making is necessary for organizational survival, ensuring effective resource allocation and strategic planning. (B)</p> Signup and view all the answers

<p>To provide search engines with keywords and descriptions for better indexing. (A)</p> Signup and view all the answers

<p>To manage the structure and control access to data (D)</p> Signup and view all the answers

<p>Increased data redundancy (C)</p> Signup and view all the answers

<p>Single-user vs. Multiuser (D)</p> Signup and view all the answers

<p>Supports only one user at a time (C)</p> Signup and view all the answers

<p>Enables access for multiple users concurrently (A)</p> Signup and view all the answers

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

<p>Single-user database (B)</p> Signup and view all the answers

<p>Single-user database (B)</p> Signup and view all the answers

<p>Loss of all data related to a user after deleting one record. (D)</p> Signup and view all the answers

<p>Data-modeling skills. (A)</p> Signup and view all the answers

<p>Network protocols. (B)</p> Signup and view all the answers

<p>Most file system-related problems. (C)</p> Signup and view all the answers

<p>Third-party antivirus software. (D)</p> Signup and view all the answers

<p>System administrators. (B), End users. (C)</p> Signup and view all the answers

<p>Providing data abstraction. (D)</p> Signup and view all the answers

<p>By storing metadata in a data dictionary. (D)</p> Signup and view all the answers

<p>Cost-effectiveness and effectiveness. (C)</p> Signup and view all the answers

<p>Data structural dependencies. (C)</p> Signup and view all the answers

<p>Data is unprocessed facts, while information is the result of processing raw data to reveal meaning. (A)</p> Signup and view all the answers

<p>Databases provide a way to store and retrieve information, which is essential for making informed decisions. (B)</p> Signup and view all the answers

<p>Databases are built on top of file systems, so understanding their limitations and strengths is crucial. (A)</p> Signup and view all the answers

<p>Databases eliminate the need for manual data entry and processing. (B)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>Alterations to the database structure necessitate modifications to data access programs. (B)</p> Signup and view all the answers

<p>Programs need to be modified if there are changes in data storage characteristics. (C)</p> Signup and view all the answers

<p>Data access methods remain unaffected even when data storage characteristics evolve. (B)</p> Signup and view all the answers

<p>Elimination of the need to modify programs when data storage changes. (B)</p> Signup and view all the answers

<p>Switching to a different database management system. (A)</p> Signup and view all the answers

<p>Greater dependence on specific data storage characteristics. (A)</p> Signup and view all the answers

<p>To enhance the flexibility and adaptability of database systems. (C)</p> Signup and view all the answers

<p>Adding a new field to a table without requiring any modifications to the programs accessing it. (D)</p> Signup and view all the answers

<p>Creating a logical structure for storing and retrieving data. (A)</p> Signup and view all the answers

<p>Structured data is highly organized with a defined schema, while semi-structured data has some organization but is less rigid. (B)</p> Signup and view all the answers

<p>Simplified data management, increased data accuracy, improved reporting capabilities. (A)</p> Signup and view all the answers

<p>File systems provide a foundation for understanding database concepts. (D)</p> Signup and view all the answers

<p>A technical professional who manages data processing tasks in computerized file systems. (A)</p> Signup and view all the answers

<p>They were inefficient for managing large amounts of data. (A)</p> Signup and view all the answers

<p>It leads to data redundancy. (B)</p> Signup and view all the answers

<p>Changes to the database structure affect the ability to access data. (A)</p> Signup and view all the answers

<p>Limited options for data visualization and analysis. (B)</p> Signup and view all the answers

<p>To provide a high-level view of the data structure and relationships. (C)</p> Signup and view all the answers

<p>Implementation of centralized data management and control. (D)</p> Signup and view all the answers

<p>Applications are the primary means of accessing and manipulating data within file systems. (B)</p> Signup and view all the answers

<p>To identify potential issues in database design based on past limitations. (B)</p> Signup and view all the answers

<p>Data that is not organized or formatted in a structured way. (A)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>Data processing and database design are interconnected and influence each other. (A)</p> Signup and view all the answers

<p>To store and manage data in a structured way. (C)</p> Signup and view all the answers

Raw facts that have no context or meaning.

Processed data that reveals meaning through context.

A structured collection of data managed to support decision-making.

Database Management System; software for managing databases.

Issues in traditional file management that databases address.

Essential for efficient data storage, access, and management.

The transition of data storage from simple files to complex databases.

The environment that gives raw data meaning and relevance.

The process of making choices using accurate, relevant, and timely information.

Raw facts of interest to end users, collected for processing and analysis.

Data that describes other data, providing context or information about its characteristics.

A photograph represents information whereas what you look like is data.

Web pages often contain metadata in the form of meta tags for better understanding.

Tags that describe a web page's content for search engines.

A collection of programs managing data structure and access.

The capability of a DBMS to allow multiple users to access data.

Protecting data from unauthorized access in a DBMS.

DBMS reduces discrepancies in data across different views.

Classified based on users, location, and usage.

Supports only one user, typically running on a personal computer.

Supports multiple users simultaneously, often used in workgroups.

Capacity for a DBMS to access data without changes from structural alterations.

When changes in the database structure affect the DBMS’s ability to access data.

Data access changes when the characteristics of data storage change.

Ability to change storage characteristics without affecting data access.

Modifying customer data structure requires updates to data retrieval programs.

Allowing user input to define variables dynamically in programming.

Including new attributes in a database structure can necessitate program modifications.

Separation of data and programs enhances data handling and adaptability.

An undesirable effect when deleting data leads to unintentional loss of related information.

Skills necessary for effectively designing and visualizing data structure.

A collection of logically related data stored in a single repository.

Core operations performed by a DBMS to manage and control data effectively.

A repository within a DBMS that contains definitions of data elements and their relationships.

How a DBMS creates and manages the structures needed for storing data.

Elements that include hardware, software, data, procedures, and people in a database environment.

Includes operating system software, DBMS software, and application programs necessary for data management.

Categorical groups such as administrators, designers, analysts, and end users that interact with the database.

Instructions and rules that govern how a database is designed and used.

Data that exists in its original format without any structure applied.

Data that has been organized according to a specific format for processing.

Data that has some structure but not all information is consistent across entities.

A database that supports data elements represented in XML format, which is semi-structured.

Essential for creating a structure that supports efficient data management and retrieval.

Leads to errors that are difficult to trace and manage data inefficiently.

A system composed of files and folders organized for expected use.

Traditional systems serving as data repositories for small collections of data.

Automated systems that manage data and replace manual file systems.

Issues like complex administration and inadequate security features in traditional file systems.

Spontaneous queries that cannot be performed easily in a traditional file system.

A role that involves converting manual file systems to computerized databases.

The gradual transition from manual file systems to complex databases to manage data efficiently.

Understanding file system complexities aids in avoiding similar issues in Database Management Systems.