BIS 311 DeVry Week 2 Quiz

BIS 311 DeVry Week 2 Quiz
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BIS 311 DeVry Week 2 Quiz
BIS311
BIS 311 DeVry Week 2 Quiz
Question 1.1. (TCO 3) Every variable has a _____, name, scope, and lifetime. (Points : 1)
o
o
o
o
property
data type
dimension
parameter list
Question 2.2. (TCO 3) The data type of a variable determines _____. (Points : 1)
o
o
o
o
the identifier used to refer to the variable in the code
the part of the code in which the variable can be used
the time when the variable is created and destroyed
the category of data the variable can store
Question 3.3. (TCO 3) A variable that can hold only a single Unicode character has a data type of _____. (Points
: 1)
o
o
o
o
String
Short
Single
Char
Question 4.4. (TCO 3) To avoid rounding errors in financial calculations, the best data type to use for money
amounts is _____. (Points : 1)
o
o
o
o
Single
Double
Decimal
Long
Question 5.5. (TCO 3) It is best to avoid the Object data type unless absolutely necessary because _____. (Points
: 1)
o
o
o
o
it is not supported by all versions of Visual Basic
your application may not work in future versions of Windows
it can cause an application to run more slowly
only numeric values can be stored in Object variables

Question 6.6. (TCO 3) In Hungarian notation, variable names begin with a three-character prefix that indicates
_____. (Points : 1)
o
o
o
o
whether the variable is an input or an output
the initials of the programmer
the variable’s scope
the variable’s data type
Question 7.7. (TCO 3) When a variable name is written in camel case, upper-case letters _____. (Points : 1)
o
o
o
o
are not used
are used for the first letter of each word only
are used for all letters in the name
are used for only the prefix
Question 8.8. (TCO 3) Which of the following is a valid variable name in Visual Basic? (Points : 1)
o decSales4Q2015
o 4Q2015Sales
o Sales for Fourth Quarter 2015
o dec.Sales.4Q.2015
Question 9.9. (TCO 3) Which of the following statements declares a variable named dblHeight with data type
Double in Visual Basic? (Points : 1)
o
o
o
o
Dim dblHeight As Double
Dim Double As dblHeight
Double dblHeight
Declare dblHeight As Double
Question 10.10. (TCO 3) If a variable with a data type of Boolean is declared without specifying an initial value, its
initial value will be _____. (Points : 1)
o
o
o
o
true
false
undefined
nothing
Question 11.11. (TCO 3) A value can be stored in a variable while the application is running using a(n) _____
statement. (Points : 1)
o
o
o
o
conditional
assignment
control
comment
Question 12.12. (TCO 3) To convert text input to a number, most programmers prefer to use the TryParse method
rather than the Val function because _____. (Points : 1)
o
o
o
o
TryParse executes faster
TryParse allows the programmer to specify the intended data type
TryParse uses less memory
TryParse can convert a string that contains a dollar sign
Question 13.13. (TCO 3) A memory location in an application that can be referred to by name, but whose value
cannot be changed after it has been initialized, is a _____. (Points : 1)

o
o
o
o
literal constant
named constant
static variable
class-level variable
Question 14.14. (TCO 3) Which of the following statements tells Visual Basic to ensure that every named constant
and variable is declared with a data type? (Points : 1)
o
o
o
o
Option Infer On
Option Infer Off
Option Strict On
Option Explicit Off
Question 15.15. (TCO 3) The operator to join or concatenate strings in Visual Basic is the _____. (Points : 1)
o percent (%)
o ampersand (&)
o backslash ()
o pipe (|)
Question 16.16. (TCO 3) A control’s _____ event occurs when a change is made to the control’s Text property.
(Points : 1)
o
o
o
o
Click
Enter
GotFocus
TextChanged
Question 17.17. (TCO 3) What type of error is represented in the following Visual Basic statement? Die strName
As String (Points : 1)
o
o
o
o
run time
functional
syntax
logic
Question 18.18. (TCO 3) Which of the following would be most likely to cause a logic error in an application?
(Points : 1)
o
o
o
o
Misspelling the name of a text box when referring to it in code
Entering a statement to display a result before the statement that calculates the result
Misspelling the data type in a variable declaration
Attempting to divide by zero in a calculation
Question 19.19. (TCO 3) Setting a(n) _____ allows the programmer to pause execution of the application at a
specific line in the code. (Points : 1)
o
o
o
o
trigger
interrupt
milestone
breakpoint
Question 20.20. (TCO 3) The Visual Basic function that calculates the present value of a series of payments is
(Points : 1)
o
PV.

o
o
o
FV.
Pmt.
PresVal.