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WGU D322 OA NEWEST EXAM 2025/2026 NEWEST ACTUAL
EXAM WITH COMPLETE QUESTIONS AND VERIFIED
ANSWERS |ALREADY GRADED A+|
What is a Program vs. a Script? - ANSWER-A "program" in
general, is a sequence of instructions written so that a computer
can perform certain task. A "script" is code written in a scripting
language. A scripting language is nothing but a type of
programming language in which we can write code to control
another software application.
What is N-Tier Software Architecture (presentation vs. logic vs.
data)? - ANSWER-N-tier Development
Often used to indicate that the number of tiers a system will be
broken down into will vary between different software
development projects
Presentation Tier
Tier where the user interface for the system is developed; shields
the user from the underlying logic of the systems as well as the
underlying data structures
Logic Tier
Tier that sits between the user interface and the data.
, Page |2
Data Tier
Tier where data is stored, retrieved and updated from database
tables
Identify the MVC model and its parts. - ANSWER-Model-View-
Controller (MVC)
A development technique used in the implementation of user
interfaces
The Model
Can take on different forms depending on the complexity of the
application; in certain instances, it is an actual object that is an
actual implementation of the application
The View
The part of the application that represents the user interface; used
to capture input from the user to be passed on via the controller to
the model
The Controller
The part of an application that interacts with the user and passes
the user requests to the model
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What are Data Types (boolean, integer, string, date/time)? -
ANSWER-integer:
Integer values are written as a sequence of digits, possibly
prefixed by a + or - sign. The integer values that can be specified
range from -2147483648 to 2147483647. If used where a decimal
value was expected, the integer values are automatically
converted to decimal values.
Date/time: A date and time format depending on the locale on
your computer. Dates from January 1, 1583 and forward are
supported.
boolean: True and false. Booleans are used to represent true and
false values returned by comparison operators and logical
functions.
string: String values are surrounded by double quotes or single
quotes. Escaping is performed by entering the delimiter symbol
twice in a row (i.e., '' or ""). A string value can contain any
sequence of UNICODE characters.
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What are Database types (flat files vs. hierarchical vs. relational)?
- ANSWER-Flat File Database
One large single table; used if the amount of data that is being
recorded is fairly minimal
Relational Database
Has multiple tables (relations) with interrelated fields; most
common structure for databases
Hierarchical Database
Organizes data using a tree like or organizational chart type
structure
What is the Organization of data (database - table - record -
field)? - ANSWER-Table is like a file where we can store similar or
related data .However Unlikely a file the data stored in table is in
the forms of vertical columns and horizontal rows.
The term "fields" refers to columns, or vertical categories of data.
The term "records" refers to rows, or horizontal groupings of
unique field data .
WGU D322 OA NEWEST EXAM 2025/2026 NEWEST ACTUAL
EXAM WITH COMPLETE QUESTIONS AND VERIFIED
ANSWERS |ALREADY GRADED A+|
What is a Program vs. a Script? - ANSWER-A "program" in
general, is a sequence of instructions written so that a computer
can perform certain task. A "script" is code written in a scripting
language. A scripting language is nothing but a type of
programming language in which we can write code to control
another software application.
What is N-Tier Software Architecture (presentation vs. logic vs.
data)? - ANSWER-N-tier Development
Often used to indicate that the number of tiers a system will be
broken down into will vary between different software
development projects
Presentation Tier
Tier where the user interface for the system is developed; shields
the user from the underlying logic of the systems as well as the
underlying data structures
Logic Tier
Tier that sits between the user interface and the data.
, Page |2
Data Tier
Tier where data is stored, retrieved and updated from database
tables
Identify the MVC model and its parts. - ANSWER-Model-View-
Controller (MVC)
A development technique used in the implementation of user
interfaces
The Model
Can take on different forms depending on the complexity of the
application; in certain instances, it is an actual object that is an
actual implementation of the application
The View
The part of the application that represents the user interface; used
to capture input from the user to be passed on via the controller to
the model
The Controller
The part of an application that interacts with the user and passes
the user requests to the model
, Page |3
What are Data Types (boolean, integer, string, date/time)? -
ANSWER-integer:
Integer values are written as a sequence of digits, possibly
prefixed by a + or - sign. The integer values that can be specified
range from -2147483648 to 2147483647. If used where a decimal
value was expected, the integer values are automatically
converted to decimal values.
Date/time: A date and time format depending on the locale on
your computer. Dates from January 1, 1583 and forward are
supported.
boolean: True and false. Booleans are used to represent true and
false values returned by comparison operators and logical
functions.
string: String values are surrounded by double quotes or single
quotes. Escaping is performed by entering the delimiter symbol
twice in a row (i.e., '' or ""). A string value can contain any
sequence of UNICODE characters.
, Page |4
What are Database types (flat files vs. hierarchical vs. relational)?
- ANSWER-Flat File Database
One large single table; used if the amount of data that is being
recorded is fairly minimal
Relational Database
Has multiple tables (relations) with interrelated fields; most
common structure for databases
Hierarchical Database
Organizes data using a tree like or organizational chart type
structure
What is the Organization of data (database - table - record -
field)? - ANSWER-Table is like a file where we can store similar or
related data .However Unlikely a file the data stored in table is in
the forms of vertical columns and horizontal rows.
The term "fields" refers to columns, or vertical categories of data.
The term "records" refers to rows, or horizontal groupings of
unique field data .
