Sevry BIS311/ BIS311 week 2 quiz

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    Question
    Question 1.1. (TCO 3) Every variable has a _____ name scope and lifetime. (Points : 1)
    property
    data type
    dimension
    parameter list
    Question 2.2. (TCO 3) The data type of a variable determines _____. (Points : 1)
    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)
    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)
    Single
    Double
    Decimal
    Long
    Question 5.5. (TCO 3) It is best to avoid the Object data type unless absolutely necessary because _____. (Points : 1)
    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)
    whether the variable is an input or an output
    the initials of the programmer
    the variables scope
    the variables data type
    Question 7.7. (TCO 3) When a variable name is written in camel case upper-case letters _____. (Points : 1)
    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)
    decSales4Q2015
    4Q2015Sales
    Sales for Fourth Quarter 2015
    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)
    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)
    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)
    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)
    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)
    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)
    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)
    percent (%)
    ampersand (&)
    backslash ()
    pipe (|)
    Question 16.16. (TCO 3) A controls _____ event occurs when a change is made to the controls Text property. (Points : 1)
    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)
    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)
    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)
    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)
    PV.
    FV.
    Pmt.
    PresVal.

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