EXAM QUESTIONS WITH
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CORRECT VERIFIED
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ANSWERS A+ GRADED
YC
D
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ST
Information Technology - ANS technology used in creating and
making information accessible.
,IT Professional Roles - ANS Administration / Support
System Administrator - ANS Maintains system (hardware,
software, and programming)
Network Administrator - ANS In charge of the computer network
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Database Administrator - ANS Focuses on the design,
development, and support of DBMS
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Security Administrator - ANS Installs/administers firewall security
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to protect systems and stop intrusions.
Web Administrator - ANS Installs/troubleshoots web severs.
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Support IT Professionals - ANS Help desk and training.
Information - ANS Processed data.
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DIKW Hierarchy - ANS Data Information Knowledge Wisdom
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Data in DIKW - ANS The input
(not usable until it converted into a relevant form)
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Information in DIKW - ANS inferred from data
data transformed into a useful form by applying 1+ processes
Knowledge in DIKW - ANS (Refined) Information placed into a
context.
recalling relevant information
,Wisdom in DIKW - ANS Provides a social setting to knowledge
an understanding of the "why"
knowledge and experience.
Information Systems - ANS A collection of data and information
that supports decision making in an organization.
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Existed for a lot longer than computers.
Enables data processing and storage them delivering information
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Characteristics of Quality Data - ANS Relevance - relates
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directly to decision being made
Timely - efficient and provided in a timely manner
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Thorough - the data must be complete
Accurate - data = captured only once (where possible). Captured
as close as possible to the point of activity
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Reliable - stable and consistent over time
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IPOS - ANS The Input-Procession-Output-Storage Cycle
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Input - ANS Raw data is entered by the user.
Processing - ANS Raw data is structured for usefulness.
Output - ANS Information is output so user can see results.
, Storage - ANS Processed info stored for permanent record.
Computer System - ANS A collection of components working
together to meet the users needs;
hardware, software, networks, users.
Hardware is the
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And contains the ____ and ________ - ANS Physical
components (tangible)
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system unit and peripheral devices
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Software contain the 1) 2)that perform this function 3)to
accomplish - ANS Computer programs
That tell the computer how to
process information then execute commands
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Network is a ____ of _______ and _______
These things communicate with each other by ______ _______ -
ANS A collection of computers and resources that communicate
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with each other by various media
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User - ANS Those who use a computer.
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Software Categories - ANS Systems Software
Applications Software
Evolution of Users 1,2,3 - ANS First users: engineers who built
and programmed computers
Next: employees who had received specialized training
Today: anyone can be a user.