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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 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 bef

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