Exam (elaborations)
Chapter 1 - MISY 5300 Questions and Answers
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Chapter 1 - MISY 5300
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Chapter 1 - MISY 5300Algorithm - answer is a set of rules, calculations, and assumptions used to solve a
problem
Attribute - answer is a characteristic or property of an entity. For the entity employee, for
example, attributes might include such characteristics as first and last name, employee
number, and date of hire. seen as a column in an entity table
Big Data - answer the large volume of data produced by every digital process, system,
sensor, mobile device, and even social media exchange. to extract meaningful data
from big data, need optimal processing power, analytics capabilities, and up-to-date
technical skills. Data can be structured, unstructured or a combo of both
Column - answer also called a field or attribute
data analyst - answer use tools and algorithms to mine a database for answers,
information, trends, and insights.
data file - answerA spreadsheet that is used to store data, typically stores data as one
large table
data independence - answera quality that allows you to change the structure of a
database without requiring major changes to the programs that access the database
data redundancy - answerthe duplication of data, or the storing of the same data in
more than one place. Can lead to a higher frequency of data errors and inconsistencies,
which can lead to poorer decision making. one problem that employees have with the
project estimates spreadsheet
data security - answeris protection of data from threats and includes preventing
unauthorized access to the database, encrypting data as it travels through a network,
protecting against data corruption, and protecting against all other electronic and
physical attacks to the data.
database - answera collection of data organized in a manner that allows access,
retrieval, and use of that data.
database administrator (DBA) - answera person or group should be in charge of the
database, especially if the database will serve many users.
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