WGU D322 OA COMPREHENSIVE EXAM
REVIEW GUIDE WITH DETAILED VERIFIED
SOLUTIONS ELITE EDITION 2026
● IT Professional Roles. Answer: Administration and Support
● System Administrator. Answer: Maintains all aspects of the system
including hardware, software, and programming.
● Network Administrator. Answer: In charge of all aspects of the
computer network
● Database Administrator. Answer: Focuses on the design,
development, and support of database management systems (DBMSs).
● Security Administrator. Answer: Installs, configures, and administers
firewall security to protect systems and proactively work to stop
intrusions.
● Web Administrator. Answer: Installs, configures, maintains, secures,
and troubleshoots web severs.
,● Support IT Professionals. Answer: Help desk and training.
● Information. Answer: Processed data.
● DIKW Hierarchy. Answer: Defines the transition of data to
information from knowledge to wisdom. (Data Information Knowledge
Wisdom)
● Data in DIKW. Answer: The input directly received by the user (or
computer). It is generally not usable until it has been converted into a
relevant form.
● Information in DIKW. Answer: Having been inferred from data; one
or more processes have been applied to the data to transform it into a
more useful form.
● Knowledge in DIKW. Answer: Information that has been put to use;
information placed into a context. Refined information such that the user
of the knowledge is able to call forth only relevant portions of
information when needed.
● Wisdom in DIKW. Answer: Provides a social setting to knowledge;
an understanding of the "why". Can only come by having both
knowledge and experience.
,● Information Systems. Answer: A collection of data and information
used to support the management of an organization. Also refers to the
technical components and human resources that enable the assembly,
storage, and processing of data and the delivery of information. This has
existed for a lot longer than computers.
● Characteristics of Quality Data. Answer: Relevance - the data being
used must apply directly to the decision being made
Timely - data must be efficient and must be provided in a timely manner
Thorough - the data must be complete
Accurate - data should be captured only once, where possible and should
be captured as close to the point of activity as possible.
Reliable - data should reflect stable and consistent data collection
processes across collections points and over time
● IPOS. Answer: The Input-Procession-Output-Storage Cycle
● Input. Answer: Raw data is entered by the user.
, ● Processing. Answer: Raw data is organized or structured for
usefulness.
● Output. Answer: Information is output so user can see results.
● Storage. Answer: Processed information is stored for permanent
record.
● Computer System. Answer: A collection of components that work
together to meet the needs of the user; typically categorized as either
hardware, software, networks, or users.
● Hardware. Answer: Physical components of a computer system which
include the system unit and its components and peripheral devices;
tangible aspects of the computer.
● Software. Answer: Computer programs that tell the computer what to
do--how to execute commands and process information
● Network. Answer: A collection of computers and resources connected
by various media so that they can communicate with each other.
● User. Answer: Those who use a computer.
REVIEW GUIDE WITH DETAILED VERIFIED
SOLUTIONS ELITE EDITION 2026
● IT Professional Roles. Answer: Administration and Support
● System Administrator. Answer: Maintains all aspects of the system
including hardware, software, and programming.
● Network Administrator. Answer: In charge of all aspects of the
computer network
● Database Administrator. Answer: Focuses on the design,
development, and support of database management systems (DBMSs).
● Security Administrator. Answer: Installs, configures, and administers
firewall security to protect systems and proactively work to stop
intrusions.
● Web Administrator. Answer: Installs, configures, maintains, secures,
and troubleshoots web severs.
,● Support IT Professionals. Answer: Help desk and training.
● Information. Answer: Processed data.
● DIKW Hierarchy. Answer: Defines the transition of data to
information from knowledge to wisdom. (Data Information Knowledge
Wisdom)
● Data in DIKW. Answer: The input directly received by the user (or
computer). It is generally not usable until it has been converted into a
relevant form.
● Information in DIKW. Answer: Having been inferred from data; one
or more processes have been applied to the data to transform it into a
more useful form.
● Knowledge in DIKW. Answer: Information that has been put to use;
information placed into a context. Refined information such that the user
of the knowledge is able to call forth only relevant portions of
information when needed.
● Wisdom in DIKW. Answer: Provides a social setting to knowledge;
an understanding of the "why". Can only come by having both
knowledge and experience.
,● Information Systems. Answer: A collection of data and information
used to support the management of an organization. Also refers to the
technical components and human resources that enable the assembly,
storage, and processing of data and the delivery of information. This has
existed for a lot longer than computers.
● Characteristics of Quality Data. Answer: Relevance - the data being
used must apply directly to the decision being made
Timely - data must be efficient and must be provided in a timely manner
Thorough - the data must be complete
Accurate - data should be captured only once, where possible and should
be captured as close to the point of activity as possible.
Reliable - data should reflect stable and consistent data collection
processes across collections points and over time
● IPOS. Answer: The Input-Procession-Output-Storage Cycle
● Input. Answer: Raw data is entered by the user.
, ● Processing. Answer: Raw data is organized or structured for
usefulness.
● Output. Answer: Information is output so user can see results.
● Storage. Answer: Processed information is stored for permanent
record.
● Computer System. Answer: A collection of components that work
together to meet the needs of the user; typically categorized as either
hardware, software, networks, or users.
● Hardware. Answer: Physical components of a computer system which
include the system unit and its components and peripheral devices;
tangible aspects of the computer.
● Software. Answer: Computer programs that tell the computer what to
do--how to execute commands and process information
● Network. Answer: A collection of computers and resources connected
by various media so that they can communicate with each other.
● User. Answer: Those who use a computer.
