Technology in Action – Chapter 11 – Flashcards
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Data redundancy ensures that the data contained in the database is accurate and reliable. True or False?
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False
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A large data mart might require a database administrator to design, construct, and maintain it. True or False?
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False
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A group of related records is called a table. True or False?
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True
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An employee's ID number, name, company, position, address, city, state and Zip Code make up a record. True or False?
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True
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When using Access, the text of the Gettysburg Address would be stored in a short text field. True or False?
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False
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Employees' last names would usually make an appropriate primary-key field. True or False?
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False
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Normalization means that there are no data entry errors in a database. True or False?
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False
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In a relational database, when two tables have a common field, the link between the tables is known as a hyperlink. True or False?
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False
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A database schema defines the name, data type, and length of each field in the database. True or False?
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True
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A last name field is an example of a friend that should have a default value. True or False?
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False
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Most databases can import electronic data from other software applications. True or False?
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True
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A filter is limited to extracting data from a single table. True or False?
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True
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The information in a data mart spans an entire enterprise. True or False?
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False
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Real-time processing means that transactions are updated when they occur. True or False?
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True
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A summary report provides a list of the transactions that occurred during a specified time period. True or False?
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False
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Data mining analyzes and investigates large amounts of data with the intention of discovering significant patterns or trends. True or False?
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True
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A _______ is a group of related data that can be stored, sorted, organized, and queried. a) database b) macro c) spreadsheet d) memo
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database
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If a school keeps two lists, one for student registration and one for student financial information, both containing name and address information, this is an example of data _______. a) redundancy b) completeness c) integrity d) normalization
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redundancy
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Data _______ ensures that the data contained in a database is accurate and reliable. a) consistency b) redundancy c) efficiency d) integrity
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integrity
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Data _______ helps to ensure data integrity by maintaining information in only one place. a) centralization b) flexibility c) redundancy d) mapping
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centralization
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21 in a database, the term _______ is synonymous with a category of information. a) record b) table c) row d) field
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field
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In a database, a group of related records is referred to as a(n) _______. a) memo b) object c) field d) table
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table
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In a Microsoft Access database, the Gettysburg Address would be stored in a(n) _______ field. a) text b) short text c) long text d) object
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long text
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You can set a _______, which is automatically displayed in a field unless the user enters something different. a) field type b) default value c) numeric check d) relation
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default value
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Which of the following is NOT a likely primary key? a) Driver's license number b) Social Security number c) Date of birth d) Student ID number
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Date of birth
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_______ is used to ensure that data is organized more efficiently. a) Range checking b) Normalization c) Validation d) Consistency checking
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Normalization
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_______ databases are the most frequently used electronic databases. a) Multidimensional b) Flat-file c) Object-oriented d) Relational
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Relational
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A _______ relationship indicates that for each record in a table, there is only a single corresponding record in a related table. a) many-to-many b) one-to-one c) many-to-one d) one-to-many
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one-to-one
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_______ means that for each value in the foreign key of one table, there is a corresponding value in the primary key of another table. a) Database consistency b) Record integrity c) Normalization d) Referential integrity
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Referential integrity
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Nontraditional data such as audio clips, video clips, pictures, and very large documents are called _______ data. a) enterprise b) unstructured c) multidimensional d) structured
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unstructured
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Data in a multidimensional database is organized in a _______ format. a) cube b) linear d) modular c) cellular
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cube
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A _______ check would be used to restrict the fines for speeding violations from $50 to $250. a) completeness b) range c) consistency d) numeric
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range
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A(n) _______ check determines whether a required field such as LastName was filled in a) consistency b) completeness c) range d) alphabetic
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completeness
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A _______ check compares the values of data in two or more fields to see whether those values are reasonable. a) correctness b) numeric c) consistency d) range
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consistency
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You would use a _______ to temporarily display records of residents of the city of Boston. a) sieve b) validation rule c) filter d) field constraint
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filter
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A(n) _______ is a way of retrieving information from one or more tables that defines a particular subset of data. a) query b) enquiry c) validation rule d) field constraint
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query
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A _______ displays a subset of data from a table (or tables) based on the specified criteria a) join query b) table query c) select query d) criteria query
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select query
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SQL uses _______ to extract records from a database by using English-like expressions that have variables and operations. a) relational algebra b) primary keys c) Boolean algebra d) foreign keys
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relational algebra
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_______ involves putting data into an electronic file in a format that another application can recognize. a) Enhancing b) Extracting c) Exporting d) Importing
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Exporting
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A data _______ is a large-scare electronic repository of data that contains and organizes all of an organization's data in one place. a) mart b) storehouse c) chain d) warehouse
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warehouse
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Data staging consists of all of the following steps EXCEPT _______ a) extracting the data b) transforming the data c) mining the data d) storing the data in a warehouse
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mining the data
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A(n) _______ is designed to improve communications and help employees complete their routine tasks. a) office support system (OSS) b) decision support system (DSS) c) transaction-processing system (TPS) d) management information system (MIS
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office support system (OSS)
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In a transaction-processing system (TPS), if the TPS database can be queried and updated while the transaction is taking place, this is called ________ processing. a) real-time b) immediate c) direct d) batch
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real-time
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Management information systems (MIS) provide reports called _______ reports, which show conditions that are unusual or need attention from users of the system. a) exception b) expert c) summary d) detail
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exception
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The Siri personal assistant application on Apple's iPhone 5s in an example of a _______. a) management information system (MIS b) database management system (DBMS) c) natural language processing (NLP) system d) decision support system (DSS)
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natural language processing (NLP) system
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_______ is the branch of computer science that attempts to create computers that think like humans. a) Natural language processing b) Enterprise resource planning c) Artificial intelligence d) Expert systems
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Artificial intelligence
