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BTE 210 Exam 2/exam study guide/questions and answers/verified A+

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BTE 210 Exam 2/exam study guide/questions and answers/verified A+ BTE 210 Exam 2/exam study guide/questions and answers/verified A+ BTE 210 Exam 2/exam study guide/questions and answers/verified A+ Data increases ______ with time? - correct answers-exponentially what is Data Degradation? - correct answers-Issues that happen with the quality of data. Is the data correct? customers move to new addresses, change their names what is data rot? - correct answers-worthless data. Data that no longer is useful or exists. Maybe a flashdrive went through the washing machine physical problems with storage media and thus make it difficult to access what are the 3 sources of data? - correct answers-1) internal data sources 2) personal data sources 3) external data sources what are Internal Data Sources? - correct answers-corporate databases and company documents what are personal data sources? - correct answers-personal thoughts, opinions, experiences Professor perez worked in sales and she recorded info about all her clients, like what drink they like. Only she has this information what are external data sources? - correct answers-commercial databases, government reports, and corporate web sites what is data governance? - correct answers-managing data information across an entire organization what is master data? - correct answers-core data (e.g., customer, product, employee, vendor, geographic location, etc.) that spans the entire enterprise information systems what are 5 components of high quality data? - correct answers-Accurate complete timely accessible (you need to be able to access data anywhere, anytime, at any moment) relevant (is it relevant at the time of the report) these characteristics make data valuable what would Umiamis master data be? - correct answers-address, birthday, c number, social security number, email Stuff like which club you were a part of freshman year wouldn't be master data what is master data management? - correct answers-provides the ability to store, maintain, and manage a consistent, accurate, and timely version of the company's master data a process that spans all organizational business processes databases minimize three main problems. what are they? - correct answers-1) data redundancy 2) data isolation 3) data inconsistency what is data redundancy? - correct answers-The same data are stored in many places what is data isolation? - correct answers-Applications cannot access data associated with other applications The opposite of data redundancy what is data inconsistency? - correct answers-Various copies of the data do not agree databases maximize three main things. What are they? - correct answers-1) data security 2) data integrity 3) data independence what is data security? - correct answers-Keeping the organization's data safe from theft what is data integrity? - correct answers-data must meet organizational constraints Example: social security number can only have numbers what is data independence? - correct answers-Applications and data are independent of one another Each individual column in a database is called an? - correct answers-attribute (column for student last name) Each row for each student is called an? - correct answers-instance (or record) last name, first name, c #, class part grade, exam grade for an individual student Each individual cell in the spreadsheet is called? - correct answers-a field example: "25" is in the field for class participation what is a data file? - correct answers-grouping of related records similar in appearance to an excel spreadsheet what is a database? - correc

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BTE 210
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BTE 210

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BTE 210 Exam 2/exam study guide/quest
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