WGU Introduction to Computer Science Pre-Assessment
Questions And CORRECT DETAILED ANSWERS
1.Which type of variable represents a whole number in computer programming?
Integer
Array
Float
String
2.What describes a named storage location that can hold values that can change?
Operand
Identifier
Variable
Constant
3.. What is one standard rule for a variable name?
The name must use hyphens between words.
The name must start with a lowercase letter.
The name must start with the type designation.
The name should have an appropriate meaning.
4.: Which coding construct allows a choice between performing an action and skipping
it?
,Input/output
Assignment
Selection
Iteration
5.What is the value of the expression a + (b / c) * d - e if a = 19, b = 6, c = 2, d = 20, and e
= 14?
65
132
226
426
6.: What is a list?
A group in which individual elements are accessed from the same end that is called the
top
A group of related attributes stored as individual fields under a single name and treated
as a single concept
A fixed-length collection of homogeneous items that can each be accessed by its position
A varying-length, ordered collection of homogeneous items that allows for easy access,
insertion, and removal
7. How are items added to and removed from a stack?
All items can be added to or removed from any location.
All items can be accessed or changed but not easily inserted or removed.
The item removed is the one that has been in the shortest time.
The first item to be added becomes the first item removed.
8. The collection of customers for a small business is stored in such a way that a
customer can be easily accessed, deleted, or added.What is the data structure called
for in this programming situation?
Queue
Record
, Stack
List
9. What describes a reference parameter?
Stops the content of the argument from changing anywhere in the program
Passes the address, rather than the content, of the argument to the function
Allows the user to type in the content of an argument at runtime
Passes a copy of the content in an argument to the function
10. The code shows a subprogram and a call to that subprogram.
my_function(num_a)
num_c =
process(num_a)
store(num_c)num_b = my_function(num_d)
Which variable name represents
an argument? num_a num_b
num_c num_d
11. What does the object-oriented programming paradigm do to solve a programming
problem?
Enforces a specific type on each variable and strict rules about how types are used
Organizes a program into smaller components that bundle together fields and methods
Uses the structures of logic to deduce the answer from the facts and rules
Solves a problem by breaking it down into procedures or functions
12. Which programming paradigm is a subset of the declarative paradigm?
Logic
Imperative
Object-oriented
Procedural
Questions And CORRECT DETAILED ANSWERS
1.Which type of variable represents a whole number in computer programming?
Integer
Array
Float
String
2.What describes a named storage location that can hold values that can change?
Operand
Identifier
Variable
Constant
3.. What is one standard rule for a variable name?
The name must use hyphens between words.
The name must start with a lowercase letter.
The name must start with the type designation.
The name should have an appropriate meaning.
4.: Which coding construct allows a choice between performing an action and skipping
it?
,Input/output
Assignment
Selection
Iteration
5.What is the value of the expression a + (b / c) * d - e if a = 19, b = 6, c = 2, d = 20, and e
= 14?
65
132
226
426
6.: What is a list?
A group in which individual elements are accessed from the same end that is called the
top
A group of related attributes stored as individual fields under a single name and treated
as a single concept
A fixed-length collection of homogeneous items that can each be accessed by its position
A varying-length, ordered collection of homogeneous items that allows for easy access,
insertion, and removal
7. How are items added to and removed from a stack?
All items can be added to or removed from any location.
All items can be accessed or changed but not easily inserted or removed.
The item removed is the one that has been in the shortest time.
The first item to be added becomes the first item removed.
8. The collection of customers for a small business is stored in such a way that a
customer can be easily accessed, deleted, or added.What is the data structure called
for in this programming situation?
Queue
Record
, Stack
List
9. What describes a reference parameter?
Stops the content of the argument from changing anywhere in the program
Passes the address, rather than the content, of the argument to the function
Allows the user to type in the content of an argument at runtime
Passes a copy of the content in an argument to the function
10. The code shows a subprogram and a call to that subprogram.
my_function(num_a)
num_c =
process(num_a)
store(num_c)num_b = my_function(num_d)
Which variable name represents
an argument? num_a num_b
num_c num_d
11. What does the object-oriented programming paradigm do to solve a programming
problem?
Enforces a specific type on each variable and strict rules about how types are used
Organizes a program into smaller components that bundle together fields and methods
Uses the structures of logic to deduce the answer from the facts and rules
Solves a problem by breaking it down into procedures or functions
12. Which programming paradigm is a subset of the declarative paradigm?
Logic
Imperative
Object-oriented
Procedural
