IS 300 Chapter 5 – Flashcards
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Which of the following has (have) the broadest impact on an organization? a) Decisions about hardware. b) Decisions about software. c) Decisions about data. d) Both "decisions about hardware" and "decisions about software." e) All of these have an equal impact.
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c) Decisions about data.
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24) Which of the following is not a source for external data? a) Commercial databases b) Corporate databases c) Sensors d) Satellites e) Government reports
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b) Corporate databases
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Which of the following is not a reason why managing data is difficult over time? a) New systems are developed. b) The media the data are stored on becomes problematic. c) New sources of data are created. d) The amount of data increases exponentially. e) All of these are reasons why managing data is difficult over time.
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e) All of these are reasons why managing data is difficult over time.
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Not including alphabetic characters in a Social Security Number field is an example of _____ . a) Data isolation. b) Data integrity. c) Data consistency. d) Data redundancy. e) Application/data dependence
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b) Data integrity.
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_____ occurs when applications cannot access data associated with other applications. a) Data isolation b) Data integrity c) Data consistency d) Data redundancy e) Application/Data dependence
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a) Data isolation
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_____ occurs when the same data are stored in many places. a) Data isolation b) Data integrity c) Data consistency d) Data redundancy e) Application/Data dependence
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d) Data redundancy
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_____ occurs when various copies of the data agree. a) Data isolation b) Data integrity c) Data consistency d) Data redundancy e) Application/Data dependence
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c) Data consistency
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You have moved to a different apartment, but your electricity bill continues to be sent to your old address. The Post Office in your town has which problem with its data management? a) Data redundancy b) Data inconsistency c) Data isolation d) Data security e) Data dependence
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b) Data inconsistency
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Place the following members of the data hierarchy in their correct order: a) Bit - byte - field - record - database - file b) Bit - field - byte - record - file - database c) Byte - bit - record - field - database d) Bit - byte - field - record - file - database e) Bit - record - field - byte - file -- database
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d) Bit - byte - field - record - file - database
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In the data hierarchy, the smallest element is the _____. a) Record. b) Bit. c) Byte. d) Character. e) File.
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b) Bit.
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A(n) _____ is a logical grouping of characters into a word, a small group of words, or a complete number. a) Byte b) Field c) Record d) File e) Database
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b) Field
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A(n) _____ is a logical grouping of related fields. a) Byte b) Field c) Record d) File e) Database
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c) Record
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A(n) _____ is a logical grouping of related records. a) Byte b) Field c) Record d) File e) Database
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d) File
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A(n) _____ represents a single character, such as a letter, number, or symbol. a) Byte b) Field c) Record d) File e) Database
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a) Byte
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In a database, the primary key field is used to _____. a) specify an entity b) create linked lists c) identify duplicated data d) uniquely identify a record e) uniquely identify an attribute
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d) uniquely identify a record
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_____ are fields in a record that have some identifying information but typically do not identify the record with complete accuracy. a) Primary keys b) Secondary keys c) Duplicate keys d) Attribute keys e) Record keys
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b) Secondary keys
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At your university, students can take more than one class, and each class can have more than one student. This is an example of what kind of relationship? a) one-to-one b) one-to-many c) many-to-one d) many-to-many e) some-to-many
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d) many-to-many
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The data in a data warehouse have which of the following characteristics? a) They are organized by subject. b) They are coded in different formats. c) They are updated in real time. d) They are typically retained for a defined, but limited, period of time. e) They are organized in a hierarchical structure.
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a) They are organized by subject.
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The data in a data warehouse: a) are updated constantly in real time. b) are updated in batch mode, approximately once per day. c) are not updated. d) are purged constantly as new data enter. e) are available for MIS analysts, but not users
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c) are not updated.
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The process of moving data from various sources into the data warehouse is called: a) uploading. b) extracting, transforming, and loading. c) online transaction processing. d) master data management. e) online analytical processing.
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b) extracting, transforming, and loading.
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Compared to data warehouses, data marts have which one of the following characteristics? a) They cost less. b) They have longer lead times for implementation. c) They provide for central rather than local control. d) They contain more information. e) They are more difficult to navigate
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a) They cost less
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_____ is a formal approach to managing data consistently across an entire organization. a) Database management b) Enterprise information management c) Data warehousing d) Data governance e) Data mart
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d) Data governance
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_____ provide(s) companies with a single version of the truth for their data. a) Data warehouses b) Data marts c) Databases d) Master data management e) Enterprise information management
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d) Master data management
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Organizations are turning to data governance for which of the following reasons? a) They have too little data. b) They are responding to federal regulations. c) Their data are typically structured. d) Their data are usually located in the organization's databases. e) Data across their organizations are generally consistent.
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b) They are responding to federal regulations
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_____ describe the activities of the business, whereas _____ categorize(s), aggregate(s), and evaluate(s) data generated by the organization's activities. a) Transaction data, master data b) Source data, transaction data c) Operational data, master data d) Master data, source data e) Business dimensional data, databases
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a) Transaction data, master data
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_____ is a process that helps organizations identify, select, organize, disseminate, transfer, and apply expertise that are part of the organization's memory and typically reside inside the organization in an unstructured manner. a) Discovery b) Knowledge management c) Decision support d) Online analytical processing e) Data mining
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b) Knowledge management
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_____ can be exercised to solve a problem, whereas _____ may or may not be able to be exercised to solve a problem. a) Knowledge, information b) Data, information c) Information, data d) Information, knowledge e) Data, knowledge
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a) Knowledge, information
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Explicit knowledge has which of the following characteristics? a) objective b) personal c) slow d) costly to transfer e) ambiguous
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a) objective
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Tacit knowledge has which of the following characteristics? a) codified b) objective c) unstructured d) rational e) technical
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c) unstructured
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Historically, management information systems have focused on capturing, storing, managing, and reporting _____ knowledge. a) tacit b) explicit c) managerial d) geographical e) cultural
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b) explicit
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The most important benefit of knowledge management systems is: a) They improve customer service. b) They make best practices available to employees. c) They enable the organization to retain scarce knowledge when employees retire. d) They improve employee morale. e) They make product development more efficient.
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b) They make best practices available to employees.
