Scripting and Programming Foundations-
D278 Exam questions & Answers
- - -subtraction operator, outputs the difference between the two input
numbers
- != - -a comparison operator used to compare if one operator is not equal to
another
- % - -modulo operator, outputs the remainder of dividing the first number
by the second
- * - -multiplication operator, outputs the product of the two input numbers
- ** - -exponentiation operator, outputs the result of multiplying <base> by
itself <power> number of times
- / - -division operator, outputs the result of dividing the first number by the
second
- + - -addition operator, outputs the sum of the two input numbers OR
concatenation operator, joins two values together
- < - -a comparison operator used to compare if one operator is less than
another
- < - -a comparison operator used to compare if one operator is less than
another
- <= - -a comparison operator used to compare if one operator is less than
or equal to another
- = - -assignment operator, assigns a value
- == - -a comparison operator used to compare if one operator is equal to
another
- > - -a comparison operator used to compare if one operator is greater than
another
- >= - -a comparison operator used to compare if one operator is greater
than or equal to another
, - abstraction - -Focus on the essential qualities of something rather than one
specific example.
- actors - -In a use case, this is anything who lives outside of your system,
but has a goal they want to accomplish within.
- algorithm - -A set of commands that returns a value. This differs from a
procedure, which is a set of commands that doesn't necessarily have to
return a value.
- append() - -Mutates <List> by adding <Element> to the end of the list.
- arguments - -The inputs to a procedure. (may also be called parameters)
- attributes - -Characteristics of an object which may be used to reference
other objects or save object state information.
- <name> = <expression> - -This is an assignment statement. A variable is
named and also assigned a value or expression. If multiple values are
assigned to the same named variable, the last assignment is the one used.
- base case - -An expression that has a value and is not defined in terms of
some other thing we are defining. This breaks the chain of recursion.
- Boolean - -A value that is either True or False
- circular definition - -A definition that doesn't give us answers because it
never finishes. It is stuck in a loop with each reference pointing to another
reference. It has no base case.
- class - -Describes what an object will be, but it isn't the object itself. This is
a blueprint for that object.
- class <ClassName> (<BaseClass>):
<Block> - -How to define a class in Python
- class diagram (UML) - -Shows the system classes and relationships
between them. Diagrams the primary attributes and primary operations for
each class.
- code modularity - -Dividing software or an application into smaller
modules. This provides prewritten code which saves resources and provides
greater manageability.
- comparison operator - -Used to make a comparison between two values.
D278 Exam questions & Answers
- - -subtraction operator, outputs the difference between the two input
numbers
- != - -a comparison operator used to compare if one operator is not equal to
another
- % - -modulo operator, outputs the remainder of dividing the first number
by the second
- * - -multiplication operator, outputs the product of the two input numbers
- ** - -exponentiation operator, outputs the result of multiplying <base> by
itself <power> number of times
- / - -division operator, outputs the result of dividing the first number by the
second
- + - -addition operator, outputs the sum of the two input numbers OR
concatenation operator, joins two values together
- < - -a comparison operator used to compare if one operator is less than
another
- < - -a comparison operator used to compare if one operator is less than
another
- <= - -a comparison operator used to compare if one operator is less than
or equal to another
- = - -assignment operator, assigns a value
- == - -a comparison operator used to compare if one operator is equal to
another
- > - -a comparison operator used to compare if one operator is greater than
another
- >= - -a comparison operator used to compare if one operator is greater
than or equal to another
, - abstraction - -Focus on the essential qualities of something rather than one
specific example.
- actors - -In a use case, this is anything who lives outside of your system,
but has a goal they want to accomplish within.
- algorithm - -A set of commands that returns a value. This differs from a
procedure, which is a set of commands that doesn't necessarily have to
return a value.
- append() - -Mutates <List> by adding <Element> to the end of the list.
- arguments - -The inputs to a procedure. (may also be called parameters)
- attributes - -Characteristics of an object which may be used to reference
other objects or save object state information.
- <name> = <expression> - -This is an assignment statement. A variable is
named and also assigned a value or expression. If multiple values are
assigned to the same named variable, the last assignment is the one used.
- base case - -An expression that has a value and is not defined in terms of
some other thing we are defining. This breaks the chain of recursion.
- Boolean - -A value that is either True or False
- circular definition - -A definition that doesn't give us answers because it
never finishes. It is stuck in a loop with each reference pointing to another
reference. It has no base case.
- class - -Describes what an object will be, but it isn't the object itself. This is
a blueprint for that object.
- class <ClassName> (<BaseClass>):
<Block> - -How to define a class in Python
- class diagram (UML) - -Shows the system classes and relationships
between them. Diagrams the primary attributes and primary operations for
each class.
- code modularity - -Dividing software or an application into smaller
modules. This provides prewritten code which saves resources and provides
greater manageability.
- comparison operator - -Used to make a comparison between two values.
