Podcast
Questions and Answers
Database analysts work with end users and system analysts to model business processes and required data definitions.
Database analysts work with end users and system analysts to model business processes and required data definitions.
True
Relational databases are the most widely used structure, storing data elements in tables and relating data across tables based on common data elements.
Relational databases are the most widely used structure, storing data elements in tables and relating data across tables based on common data elements.
True
Hierarchical databases arrange fields or records in related groups resembling a family tree with one-to-one relationships.
Hierarchical databases arrange fields or records in related groups resembling a family tree with one-to-one relationships.
False
Network databases are similar to hierarchical databases but more flexible, allowing each child record to have more than one parent record.
Network databases are similar to hierarchical databases but more flexible, allowing each child record to have more than one parent record.
Signup and view all the answers
SQL allows users to access, describe, define, manipulate data, create and drop databases and tables, create views, and set permissions on tables.
SQL allows users to access, describe, define, manipulate data, create and drop databases and tables, create views, and set permissions on tables.
Signup and view all the answers
Object-oriented databases are considered key technologies for new generation multimedia web-based applications.
Object-oriented databases are considered key technologies for new generation multimedia web-based applications.
Signup and view all the answers
Database management system (DBMS) packages use specific data structures to provide quick, easy access to information stored in databases.
Database management system (DBMS) packages use specific data structures to provide quick, easy access to information stored in databases.
Signup and view all the answers
Fundamental database structures include hierarchical, network, relational, object-oriented, and multidimensional models.
Fundamental database structures include hierarchical, network, relational, object-oriented, and multidimensional models.
Signup and view all the answers
Relational databases are more flexible than hierarchical and network models, often built with SQL, and examples include Oracle10g, DB2, SQL Server, Paradox, and Microsoft Access.
Relational databases are more flexible than hierarchical and network models, often built with SQL, and examples include Oracle10g, DB2, SQL Server, Paradox, and Microsoft Access.
Signup and view all the answers
SQL (Structured Query Language) is a database computer language designed only for data retrieval in relational databases.
SQL (Structured Query Language) is a database computer language designed only for data retrieval in relational databases.
Signup and view all the answers
Object-oriented databases are designed to represent complex data relationships effectively and improve database performance, often used in multimedia web-based applications.
Object-oriented databases are designed to represent complex data relationships effectively and improve database performance, often used in multimedia web-based applications.
Signup and view all the answers
They determine data definitions and relationships to be included in the database.
They determine data definitions and relationships to be included in the database.
Signup and view all the answers
Logical data elements can only include alphabetic characters.
Logical data elements can only include alphabetic characters.
Signup and view all the answers
Records are groupings of fields used to describe entity attributes.
Records are groupings of fields used to describe entity attributes.
Signup and view all the answers
A database is a collection of unrelated data elements.
A database is a collection of unrelated data elements.
Signup and view all the answers
Primary keys hold unique data to identify records in a table.
Primary keys hold unique data to identify records in a table.
Signup and view all the answers
A Database Management System (DBMS) does not provide benefits such as reduced data redundancy.
A Database Management System (DBMS) does not provide benefits such as reduced data redundancy.
Signup and view all the answers
DBMS does not offer increased security through authorization control.
DBMS does not offer increased security through authorization control.
Signup and view all the answers
The data dictionary stores data definitions and descriptions of the data and database structure.
The data dictionary stores data definitions and descriptions of the data and database structure.
Signup and view all the answers
DBMS utilities do not allow maintenance and automated backup and recovery.
DBMS utilities do not allow maintenance and automated backup and recovery.
Signup and view all the answers
The report generator is not a program for producing readable documents from all or part of a database.
The report generator is not a program for producing readable documents from all or part of a database.
Signup and view all the answers
A Database Administrator (DBA) is not responsible for ensuring recoverability, integrity, security, availability, reliability, and performance of the database.
A Database Administrator (DBA) is not responsible for ensuring recoverability, integrity, security, availability, reliability, and performance of the database.
Signup and view all the answers
Developing a large database of complex data types does not require careful planning and management.
Developing a large database of complex data types does not require careful planning and management.
Signup and view all the answers
The material is copyrighted by McGraw-Hill Education and is solely for authorized instructor use, not for sale, distribution, or copying.
The material is copyrighted by McGraw-Hill Education and is solely for authorized instructor use, not for sale, distribution, or copying.
Signup and view all the answers
Regression analysis only develops mathematical formulas to fit patterns in data, not to predict future trends.
Regression analysis only develops mathematical formulas to fit patterns in data, not to predict future trends.
Signup and view all the answers
Classification analysis is a statistical pattern-recognition process that can be applied to data sets with non-numerical data.
Classification analysis is a statistical pattern-recognition process that can be applied to data sets with non-numerical data.
Signup and view all the answers
Regression problems involve predicting discrete values, like house prices in a housing data set.
Regression problems involve predicting discrete values, like house prices in a housing data set.
Signup and view all the answers
Classification problems involve predicting categories, like whether a loan should be approved.
Classification problems involve predicting categories, like whether a loan should be approved.
Signup and view all the answers
All of the big data companies mentioned are IBM, Salesforce, Google, and Oracle.
All of the big data companies mentioned are IBM, Salesforce, Google, and Oracle.
Signup and view all the answers
Big data analytics involves examining large data sets to uncover patterns and correlations.
Big data analytics involves examining large data sets to uncover patterns and correlations.
Signup and view all the answers
Big data is not expected to revolutionize measurement and decision-making, leading to new ways of thinking and better insights.
Big data is not expected to revolutionize measurement and decision-making, leading to new ways of thinking and better insights.
Signup and view all the answers
Big data has major uses in medical research, marketing, politics, and entertainment, but not in demand prediction and consumer shopping habits.
Big data has major uses in medical research, marketing, politics, and entertainment, but not in demand prediction and consumer shopping habits.
Signup and view all the answers
Artificial intelligence aims to make computers behave like humans through logic, symbol manipulation, and statistics.
Artificial intelligence aims to make computers behave like humans through logic, symbol manipulation, and statistics.
Signup and view all the answers
Regression analysis involves finding a line of best fit that minimizes the sum of the squares of the vertical distances of the points from the line.
Regression analysis involves finding a line of best fit that minimizes the sum of the squares of the vertical distances of the points from the line.
Signup and view all the answers
Classification analysis involves using algorithms such as decision trees, support vector machines, and k-nearest neighbors.
Classification analysis involves using algorithms such as decision trees, support vector machines, and k-nearest neighbors.
Signup and view all the answers
Big data analytics always requires the use of specialized big data tools and platforms.
Big data analytics always requires the use of specialized big data tools and platforms.
Signup and view all the answers
Object-oriented databases combine data values and operations, and are used in CAD and multimedia web-based applications.
Object-oriented databases combine data values and operations, and are used in CAD and multimedia web-based applications.
Signup and view all the answers
OODBMS supports complex data types more efficiently than relational databases, such as graphic images, video clips, and web pages.
OODBMS supports complex data types more efficiently than relational databases, such as graphic images, video clips, and web pages.
Signup and view all the answers
Major relational DBMS vendors add object-oriented modules to their relational software.
Major relational DBMS vendors add object-oriented modules to their relational software.
Signup and view all the answers
Multidimensional database models organize data as facts, dimensions, or numerical answers for interactive analysis in decision-making.
Multidimensional database models organize data as facts, dimensions, or numerical answers for interactive analysis in decision-making.
Signup and view all the answers
OLAP software is used to provide answers to complex database queries in multidimensional database models.
OLAP software is used to provide answers to complex database queries in multidimensional database models.
Signup and view all the answers
Multidimensional databases use multidimensional structures to organize data relationships, with data elements viewed as being in cubes.
Multidimensional databases use multidimensional structures to organize data relationships, with data elements viewed as being in cubes.
Signup and view all the answers
Hierarchical, network, relational, object-oriented, and multidimensional are different types of database models.
Hierarchical, network, relational, object-oriented, and multidimensional are different types of database models.
Signup and view all the answers
Data mining is the computer-assisted process of analyzing vast amounts of data to extract hidden patterns and discover new knowledge.
Data mining is the computer-assisted process of analyzing vast amounts of data to extract hidden patterns and discover new knowledge.
Signup and view all the answers
Data is fed into a data warehouse through steps like identifying data sources, data fusion, and obtaining data and metadata.
Data is fed into a data warehouse through steps like identifying data sources, data fusion, and obtaining data and metadata.
Signup and view all the answers
A data warehouse is a special database of cleaned-up data and metadata.
A data warehouse is a special database of cleaned-up data and metadata.
Signup and view all the answers
Data mining transforms information into knowledge by analyzing and extracting patterns from data.
Data mining transforms information into knowledge by analyzing and extracting patterns from data.
Signup and view all the answers
Multidimensional databases model data as facts, dimensions, or numerical measures for interactive analysis of large data sets.
Multidimensional databases model data as facts, dimensions, or numerical measures for interactive analysis of large data sets.
Signup and view all the answers
True or false: A database is a logically organized collection of unrelated data elements.
True or false: A database is a logically organized collection of unrelated data elements.
Signup and view all the answers
True or false: Records are groupings of fields used to describe entity attributes.
True or false: Records are groupings of fields used to describe entity attributes.
Signup and view all the answers
True or false: Data is stored hierarchically for easier storage and retrieval.
True or false: Data is stored hierarchically for easier storage and retrieval.
Signup and view all the answers
True or false: SQL (Structured Query Language) is a database computer language designed only for data retrieval in relational databases.
True or false: SQL (Structured Query Language) is a database computer language designed only for data retrieval in relational databases.
Signup and view all the answers
Logical Data Elements are organized into character, field, record, file, and database.
Logical Data Elements are organized into character, field, record, file, and database.
Signup and view all the answers
Data is stored hierarchically for easier storage and retrieval.
Data is stored hierarchically for easier storage and retrieval.
Signup and view all the answers
A file is a collection of related records.
A file is a collection of related records.
Signup and view all the answers
A field is a unit of data containing one or more characters.
A field is a unit of data containing one or more characters.
Signup and view all the answers
Study Notes
Database Models and Data Analysis
- Object-oriented databases combine data values and operations, and are used in CAD and multimedia web-based applications.
- OODBMS supports complex data types more efficiently than relational databases, such as graphic images, video clips, and web pages.
- Major relational DBMS vendors add object-oriented modules to their relational software.
- Multidimensional database models organize data as facts, dimensions, or numerical answers for interactive analysis in decision-making.
- OLAP software is used to provide answers to complex database queries in multidimensional database models.
- Multidimensional databases use multidimensional structures to organize data relationships, with data elements viewed as being in cubes.
- Hierarchical, network, relational, object-oriented, and multidimensional are different types of database models.
- Data mining is the computer-assisted process of analyzing vast amounts of data to extract hidden patterns and discover new knowledge.
- Data is fed into a data warehouse through steps like identifying data sources, data fusion, and obtaining data and metadata.
- A data warehouse is a special database of cleaned-up data and metadata.
- Data mining transforms information into knowledge by analyzing and extracting patterns from data.
- Multidimensional databases model data as facts, dimensions, or numerical measures for interactive analysis of large data sets.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge of database models and data analysis with this quiz. Explore topics such as object-oriented databases, relational DBMS, multidimensional database models, OLAP software, data mining, and data warehouses. See how well you understand different types of database models and their applications in data analysis.
