230 Questions and Verified Rationalized Answers
2025 Graded A+
1. Information Technology: The technology used in creating, maintaining, andm
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aking information accessible.
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2. IT Professional Roles: Administration and Support
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3. System Administrator: Maintains all aspects of the system including hardware,s
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oftware, and programming.
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4. Network Administrator: In charge of all aspects of the computer network
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5. Database Administrator: Focuses on the design, development, and support ofd
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atabase management systems (DBMSs).
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6. Security Administrator: Installs, configures, and administers firewall security to
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protect systems and proactively work to stop intrusions.
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7. Web Administrator: Installs, configures, maintains, secures, and troubleshoots
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web severs.
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8. Support IT Professionals: Help desk and training.
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9. Information: Processed data. D D
10. DIKW Hierarchy: Defines the transition of data to information to knowledge to
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wisdom. (Data Information Knowledge Wisdom)
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11. Data in DIKW: The input directly received by the user (or computer). It isg
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enerally not usable until it has been converted into a relevant form.
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,12. Information in DIKW: Having been inferred from data; one or more processesh
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ave been applied to the data to transform it into a more useful form.
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13. Knowledge in DIKW: Information that has been put to use; information placedi
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nto a context. Refined information such that the user of the knowledge is able to callf
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orth only relevant portions of information when needed.
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14. Wisdom in DIKW: Provides a social setting to knowledge; an understanding oft
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he "why". Can only come by having both knowledge and experience.
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15. Information Systems: A collection of data and information used to support the
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management of an organization. Also refers to the technical components and humanr
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esources that enable the assembly, storage, and processing of data and the deliveryof
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information. This has existed for a lot longer than computers.
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16. Characteristics of Quality Data: Relevance - D D D D D
the data being used must applydirectly to the decision being made
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Timely - D
data must be efficient and must be provided in a timely mannerThorough -
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the data must be complete
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Accurate - D
data should be captured only once, where possible and should becaptured a
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s close to the point of activity as possible.
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, Reliable - D
D data should reflect stable and consistent data collection processes acrosscollectio
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ns points and over time
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17. IPOS: The Input-Procession-Output-Storage Cycle
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18. Input: Raw data is entered by the user. D D D D D D D
19. Processing: Raw data is organized or structured for usefulness. D D D D D D D D
20. Output: Information is output so user can see results.
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21. Storage: Processed information is stored for permanent record.
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22. Computer System: A collection of components that work together to meet the
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needs of the user; typically categorized as either hardware, software, networks, oru
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sers.
23. Hardware: Physical components of a computer system which include the sys-
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tem unit and its components and peripheral devices; tangible aspects of the com-
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puter.
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24. Software: Computer programs that tell the computer what to do--
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how to executecommands and process information
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25. Network: A collection of computers and resources connected by various media
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so that they can communicate with each other.
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26. User: Those who use a computer. D D D D D
27. Software Categories: Systems Software and Applications Software
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28. Evolution of Users: First users were the engineers who built and programmedc
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omputers, then employees who had received specialized training were users, andno
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w today, anyone and everyone can be a user.
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29. Protocol: Rules provided by which networks communicate with each other.
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