BIS 311 DeVry Week 2 Quiz

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 property o data type o dimension o parameter list Question 2.2. (TCO 3) The data type of a variable determines _____. (Points : 1) o the identifier used to refer to the variable in the code o the part of the code in which the variable can be used o the time when the variable is created and destroyed o 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 String o Short o Single o 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 Single o Double o Decimal o Long Question 5.5. (TCO 3) It is best to avoid the Object data type unless absolutely necessary because _____. (Points : 1) o it is not supported by all versions of Visual Basic o your application may not work in future versions of Windows o it can cause an application to run more slowly o 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 whether the variable is an input or an output o the initials of the programmer o the variable’s scope o 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 are not used o are used for the first letter of each word only o are used for all letters in the name o 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 Dim dblHeight As Double o Dim Double As dblHeight o Double dblHeight o 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 true o false o undefined o 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 conditional o assignment o control o 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 TryParse executes faster o TryParse allows the programmer to specify the intended data type o TryParse uses less memory o 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 literal constant o named constant o static variable o 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 Option Infer On o Option Infer Off o Option Strict On o 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 Click o Enter o GotFocus o 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 run time o functional o syntax o 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 Misspelling the name of a text box when referring to it in code o Entering a statement to display a result before the statement that calculates the result o Misspelling the data type in a variable declaration o 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 trigger o interrupt o milestone o 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 FV. o Pmt. o PresVal.