WGU C173 Scripting And Programming –
Foundations: Accurate Solutions For Every
Question
What is an editor? Correct Answer - A program that allows you
to write code
What is a compiler? Correct Answer - A program that produces
other programs. The compiler does all the work at once and then
runs the new program. We're translating the code we wrote to
computer code all at once. This is often when we produce an .exe
(executable) file.
What is an interpreter? Correct Answer - A program that runs
code one line at a time. Instead of converting all of the code at once
it runs each line as it's needed. It interprets that specific line from
your code to computer code.
What is an operator and what does it do? Correct Answer - An
operator takes two operands (values) and does something with
them. It is an object capable of manipulating a value. If it is a
comparison or logical operator it would compare to see if they are
similar or dissimilar. If it is a mathematical operator it would
perform mathematical calculations.
What is an expression? Correct Answer - something that has a
value.
What is the difference in a terminal and non-terminal expression?
Correct Answer - A terminal is a final value, while a non-terminal
can be reduced further.
,What is proper Python grammar for making an expression?
Correct Answer - Expression → Expression Operator Expression
The Expression non-terminal that appears on the left side can be
replaced by an Expression, followed by an Operator, followed by
another Expression. For example, 1 + 1 is an Expression Operator
Expression.
What is a variable? Correct Answer - a name that refers to a
value
What are the three main types of data covered? How do you declare
each one? Correct Answer - string is a sequence of characters
surrounded by quotes, either single or double
example: myVar = "string data"
Integer is a number Correct Answer - example: myVar = 33
Boolean is a true or false value Correct Answer - example:
myVar = True
What is grammar used for in programming? Correct Answer -
In a programming language like Python, the code must match the
language grammar exactly. When programming language grammar
is not followed the interpreter will return a Syntax Error message.
This means that the structure of the code is inconsistent with the
rules of the programming language.
How do you change the value of a variable with Python? Correct
Answer - Using the = character to assign a new value
x=6
x=9
print x # would print out 9
, How to do you join multiple variables together with string data in
Python? What is this called? Correct Answer - Using the + sign
to concatenate the values
What does it mean to index a string? How do you do that with
Python code? Correct Answer - This is what we call selecting a
sub-sequence of a string. You do this in Python by specifying the
character you want to access by its index position. Index position
begins at 0. For example, this code would print out the letter J:
name = 'John'
print name[0]
What does it mean to slice a string? How do you do that with Python
code? Correct Answer - Slicing is simply obtaining a subset of
data from a string. You may have also heard this called string
extraction. You do this in Python by specifying the index position
where you want to begin and where you want to end. Everything
from the starting point up until the end point will be extracted. For
example, this code would print out "Jo":
name = 'John'
print name[0:2]
+ Correct Answer - concatenate or add
= Correct Answer - assignment
* Correct Answer - multiply
- Correct Answer - subtract
/ Correct Answer - divide
% Correct Answer - Modulos, does division and returns the
remainder
Foundations: Accurate Solutions For Every
Question
What is an editor? Correct Answer - A program that allows you
to write code
What is a compiler? Correct Answer - A program that produces
other programs. The compiler does all the work at once and then
runs the new program. We're translating the code we wrote to
computer code all at once. This is often when we produce an .exe
(executable) file.
What is an interpreter? Correct Answer - A program that runs
code one line at a time. Instead of converting all of the code at once
it runs each line as it's needed. It interprets that specific line from
your code to computer code.
What is an operator and what does it do? Correct Answer - An
operator takes two operands (values) and does something with
them. It is an object capable of manipulating a value. If it is a
comparison or logical operator it would compare to see if they are
similar or dissimilar. If it is a mathematical operator it would
perform mathematical calculations.
What is an expression? Correct Answer - something that has a
value.
What is the difference in a terminal and non-terminal expression?
Correct Answer - A terminal is a final value, while a non-terminal
can be reduced further.
,What is proper Python grammar for making an expression?
Correct Answer - Expression → Expression Operator Expression
The Expression non-terminal that appears on the left side can be
replaced by an Expression, followed by an Operator, followed by
another Expression. For example, 1 + 1 is an Expression Operator
Expression.
What is a variable? Correct Answer - a name that refers to a
value
What are the three main types of data covered? How do you declare
each one? Correct Answer - string is a sequence of characters
surrounded by quotes, either single or double
example: myVar = "string data"
Integer is a number Correct Answer - example: myVar = 33
Boolean is a true or false value Correct Answer - example:
myVar = True
What is grammar used for in programming? Correct Answer -
In a programming language like Python, the code must match the
language grammar exactly. When programming language grammar
is not followed the interpreter will return a Syntax Error message.
This means that the structure of the code is inconsistent with the
rules of the programming language.
How do you change the value of a variable with Python? Correct
Answer - Using the = character to assign a new value
x=6
x=9
print x # would print out 9
, How to do you join multiple variables together with string data in
Python? What is this called? Correct Answer - Using the + sign
to concatenate the values
What does it mean to index a string? How do you do that with
Python code? Correct Answer - This is what we call selecting a
sub-sequence of a string. You do this in Python by specifying the
character you want to access by its index position. Index position
begins at 0. For example, this code would print out the letter J:
name = 'John'
print name[0]
What does it mean to slice a string? How do you do that with Python
code? Correct Answer - Slicing is simply obtaining a subset of
data from a string. You may have also heard this called string
extraction. You do this in Python by specifying the index position
where you want to begin and where you want to end. Everything
from the starting point up until the end point will be extracted. For
example, this code would print out "Jo":
name = 'John'
print name[0:2]
+ Correct Answer - concatenate or add
= Correct Answer - assignment
* Correct Answer - multiply
- Correct Answer - subtract
/ Correct Answer - divide
% Correct Answer - Modulos, does division and returns the
remainder
