Unit 6 Introduction To Databases Part 1
Questions and Answers
- 1.
What is a database?
- 2.
Name five principles of data analysis.
- 3.
Describe the differences between desktop database software and enterprise-level database software.
- 4.
Name two examples of desktop database software and two examples of enterprise-level database software.
- 5.
What are three questions businesses need to answer before selecting database software?
- 6.
What is NOT a common data type?
- A.
Number
- B.
Date/Time
- C.
Alphabetical
- D.
Short Text
Correct Answer
C. AlpHabeticalExplanation
Alphabetical is not a common data type because it does not represent a specific type of data like number, date/time, or short text. While number, date/time, and short text are commonly used to represent different types of data, alphabetical is not a recognized data type.Rate this question:
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- 7.
What is the primary purpose of a data warehouse?
- A.
To manage small amounts of stored data from a single source so it can be stored and accessed by another system
- B.
To manage large amounts of stored data from multiple sources so it can be stored and accessed by a centralized system
- C.
To manage large amounts of stored data from a single source so it can be stored and accessed by single system
- D.
To manage small amounts of stored data from multiple sources so it can be stored and accessed by centralized system
Correct Answer
B. To manage large amounts of stored data from multiple sources so it can be stored and accessed by a centralized systemExplanation
A data warehouse is designed to handle large amounts of data from multiple sources and provide a centralized system for storing and accessing that data. This allows organizations to consolidate data from various sources into a single repository, making it easier to analyze and derive insights from the data. By centralizing the data, it becomes more efficient and convenient for users to access and retrieve the information they need. Additionally, the data warehouse provides a structured and organized environment for data management, ensuring data quality, consistency, and integrity.Rate this question:
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- 8.
What is a query?
- A.
A request for a specific answer or list of records
- B.
A request for multiple answers and a specific record
- C.
A request for a specific question or questions
- D.
A request for multiple answers and records
Correct Answer
A. A request for a specific answer or list of recordsExplanation
A query is a request for a specific answer or list of records. It is used to retrieve information from a database by specifying certain criteria or conditions. By submitting a query, the user can request specific data that meets their requirements, such as retrieving all customers who have made a purchase in the last month or finding all products with a certain price range. The query language allows users to define these criteria and retrieve the desired information from the database.Rate this question:
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- 9.
What are some of the parts of a database structure?
- A.
Data types, smartphones, spreadsheets
- B.
Tables, cells, records
- C.
Apps, storage, formats
- D.
All of the above
Correct Answer
B. Tables, cells, recordsExplanation
The correct answer is "Tables, cells, records." In a database structure, tables are used to organize and store data in a structured manner. Each table consists of cells, which hold individual data values. Records, on the other hand, are a collection of related data values within a table. Therefore, tables, cells, and records are all essential components of a database structure. The other options mentioned, such as data types, smartphones, spreadsheets, apps, storage, and formats, are not directly related to the parts of a database structure.Rate this question:
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- 10.
What type of field would be used in a database structure for an email address?
- A.
Text
- B.
Object
- C.
Yes/No
- D.
. Number
Correct Answer
A. TextExplanation
An email address is typically a string of characters, including letters, numbers, and special symbols, so a text field would be the most suitable type for storing it in a database structure. A text field allows for the storage of alphanumeric data and is flexible enough to accommodate the varying lengths of email addresses.Rate this question:
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- 11.
There are three types of database software.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "There are three types of database software" is false. There are actually multiple types of database software, including relational databases, object-oriented databases, graph databases, and more. Therefore, the correct answer is false.Rate this question:
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- 12.
A database management system is a computer software application that enables users and applications to interact with a database to capture, store, retrieve, and analyze data.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A database management system is indeed a computer software application that allows users and applications to interact with a database. It facilitates the process of capturing, storing, retrieving, and analyzing data efficiently. Therefore, the given statement is true.Rate this question:
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- 13.
Microsoft Excel is one of the most popular database applications.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Microsoft Excel is not a database application, but rather a spreadsheet application. While Excel can be used to store and organize data, it does not have the full functionality and capabilities of a true database application like Microsoft Access or SQL Server. Excel is primarily designed for calculations, data analysis, and creating charts and graphs.Rate this question:
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- 14.
Databases are the primary tool for storing, managing, and analyzing information.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Databases are designed to store, organize, and manage large amounts of information efficiently. They provide a structured way to store data, making it easier to access and analyze. With the help of databases, businesses and organizations can keep track of their data, retrieve it when needed, and perform various operations like sorting, filtering, and aggregating. Therefore, it is correct to say that databases are the primary tool for storing, managing, and analyzing information.Rate this question:
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- 15.
A database can only be made up of one table.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
False. A database can consist of multiple tables. A table is a collection of related data organized in rows and columns, and a database can have multiple tables to store different types of data. Tables within a database are linked through relationships and can be used to retrieve and manipulate data efficiently.Rate this question:
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