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)

  • 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 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)

  • 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 control’s _____ event occurs when a change is made to the control’s 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.