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Tuesday, 28 May 2013

100 Vb.net Multiple choice questions answers

 QUESTION 1

All of the following are true about standard modules except __________.
.    A module is a file that contains code such as variable declarations and procedures
   A public variable declared in a standard module may be used by other files in a project
   Standard modules may contain event handlers
   Standard modules are not associated with a particular form



QUESTION 2

Which type of loop is designed specifically to use a subscript to access the elements of an array?
.    For Next
   Do While
   Do Until
   For While
.
.  
QUESTION 3

You use to provide multiple selection conditions in an SQL statement.
.    relational operators
   compound expressions
   arithmetic operators
   the & operator
.
.  
QUESTION 4

The ___________ event occurs when a form is in the process of closing, but before it has closed.
.    FormClosing
   FormClosed
   CloseForm
   Close
.
.  
QUESTION 5

A form's __________ event is triggered when the user switches to the form from another form or another application.
.    form load
   activated
   got focus
   click
.
.  
QUESTION 6

Which of the following could be used to iterate through each element of a two-dimensional array.
.    A single Do While loop
   A single Do Until loop
   A single For Next loop
   Nested loops For Next loops
.
.  
QUESTION 7

This key word is used to refer to properties and methods found in the base class.
.    Base
   Me.Base
   MyBase
   Base.Class
.
.  
QUESTION 8

When a project executes, its __________ is automatically displayed.
.    main sub
   startup form
   event procedure
   form load event
.
.  
QUESTION 9

Which of the following declares an array to contain the weekly sales of a group of salespeople for a year? (use the constant intNumSalesmen for the number of salesmen and 52 for the number of weeks)
.    Dim decWeeklySalesTotal(intNumSalesmen - 1, 52 - 1) as Decimal
   Dim decWeeklySalesTotal(intNumSalesmen - 1, 52) as Decimal
   Dim decWeeklySalesTotal(intNumSalesmen - 1, 52 - 1)
   Dim decWeeklySalesTotal(intNumSalesmen, 52) as Decimal
.
.  
QUESTION 10

If the user should not be able to access an item that appears on a menu, set its _________ property to _______.
.    Enabled, False
   Disabled, True
   Active, False
   Hidden, True
.
.  
QUESTION 11

When a menu control's _________ property equals True, a check appears next to the menu item.
.    showCheck
   Checked
   Check
   none of the above
.
.  
QUESTION 12

In an SQL query, the _____ wildcard character, used with the LIKE operator, will match multiple unknown characters.
.    &
   #
   *
   %
.
.  
QUESTION 13

The following statements are true about a data source except
.    a data source is usually a database.
   a data source can be a text file.
   Data sets contain data retrieved from a data source.
   Data can be retrieved from but not written back to a data source.
.
.  
QUESTION 14

All of the following are browsers your Web pages should be tested with except __________.
.    Chrome
   WebPro
   Safari
   Firefox
.
.  
QUESTION 15

Which of the following is not true about a Form's class declaration?
.    It contains a detailed description of a form.
   It's similar to a blueprint for a house.
   It creates an instance of the form.
   It contains the form's event handlers.
.
.  
QUESTION 16

A postback occurs when the server processes the page contents and __________.
.    does nothing when there are no changes to the page contents
   sends an error when the requested page is not found
   sends a different page that was requested by the user
   resends a modified version of the same page currently displayed
.
.  
QUESTION 17

What does the following section of code do? Dim intCount as Integer Dim intXXXX as Integer = intNumbers(0) For intCount = 1 to (inNumbers.Length - 1) If intNumbers(intCount) > intXXXX Then intXXXX = intNumbers(intCount) End If Next intCount
.    Finds the first element of the array intNumbers
   Finds the last element of the array intNumbers
   Finds the Highest value in the array intNumbers
   Finds the Lowest value in the array intNumbers
.
.  
QUESTION 18

When changing the number of elements in an array at run-time with the ReDim statement, existing values in the array are destroyed unless the __________ keyword is used.
.    Preserve
   Reserve
   ReDim
   Protect
.
.  
QUESTION 19

__________ is a general model of something - it captures the general characteristics of an object
.    A constructor
   A collection
   An instance
   An abstraction
.
.  
QUESTION 20

Which of the following statements will remove an object referred to by the object variable NewStudent?
.    NewStudent = String.Empty
   NewStudent = Nothing
   NewStudent.Delete
   Remove.NewStudent
.
.  
QUESTION 21

Which of the following is not a Web browser?
.    Safari
   Firefox
   Windows Explorer
   Internet Explorer
.
.  
QUESTION 22

A context menu __________.
.    is an alternative for buttons
   is shown when the user right clicks a form or control
   uses the MainMenu control
   both a and c are correct
.
.  
QUESTION 23

The __________ access specifier permits class members to be accessed only by statements inside the class.
.    Public
   Protected
   Private
   Friend
.
.  
QUESTION 24

ASP.NET controls are more powerful than HTML controls because __________.
.    more fonts are available
   graphics can be embedded in them
   they use event handlers to carry out actions at runtime
   powerful hyperlinks can be embedded in them
.
.  
QUESTION 25

Which of the following is not true about the ASP.NET development platform?
.    Visual Basic code can be stored in a separate file from a web page's text and HTML.
   It allows you to transfer much of your Visual Basic knowledge to Web applications.
   It allows the use of object-oriented program code.
   Visual Basic is the only programming language that may be used.
.
.  
QUESTION 26

All of the following are true of the Show method of a form except:
.    using the Show method allows other forms to receive the focus
   the show method allows a calling program to continue to process statements
   the displayed form must be closed before you can access other forms
   the Show method displays a modeless form
.
.  
QUESTION 27

Object oriented analysis starts with __________.
.    declaring the member variables
   finding the classes
   describing attributes and operations
   defining the property procedures
.
.  
QUESTION 28

Which of the following statements defines a two-dimensional Integer array named intTwoDArray with 6 rows and 4 columns?
.    Dim intTwoDArray(5, 3) As Integer
   Dim intTwoDArray(3, 5) As Integer
   Dim intTwoDArray(6, 4) As Integer
   Dim intTwoDArray(4, 6) As Integer
.
.  
QUESTION 29

A table adapter's _________ method is used to add a new row to a table.
.    Add
   Append
   Insert
   Update


QUESTION 30

A ________ statement in SQL retrieves data from a database.
.    Select
   Search
   Find
   SearchTable
.
.  
QUESTION 31

What task is accomplished by the following code? Dim intFirstArray(2) As Integer Dim intSecondArray(2) As Integer intFirstArray(0) = 10 intFirstArray(1) = 19 intFirstArray(2) = 26 intSecondArray = intFirstArray
.    Two distinct arrays are created in memory with the same values.
   intFirstArray and intSecondArray reference the same array in memory
   This code will generate a run-time error. You cannot assign the name of one array to another.
   intFirstArray is initialized with values but intSecondArray contains no values
.
.  
QUESTION 32

Which of the following is the correct definition for a procedure that accepts a String array as an argument?
.    Private Sub ArrayParam(ByVal strStudents As String)
   Public Sub ArrayParam(ByVal strStudents())
   Sub ArrayParam(ByVal strStudents() As String)
   Private Sub ArrayParam(ByRef strStudents As String)
.
.  
QUESTION 33

The following statements apply to a Timer control, except _____________.
.    it can be used to trigger tick events at regular intervals
   the smallest possible interval between tick events is a microsecond
   the timer can be disabled so it generates no tick events
   it responds to Tick events only at run time
.
.  
QUESTION 34

A __________ is automatically called when an instance of the class is created.
.    Load method
   constructor
   instantiator
   Initializer method
.
.  
QUESTION 35

Choose the statement below that performs the comment found on line 2 of the following code segment. Dim newStudentForm As New frmNewStudent() 'Initialize AcademicYear text box on NewStudent form to 1 newStudentForm.ShowDialog()
.    frmNewStudent.txtAcademicYear.Text = "1"
   txtAcademicYear.Text.newStudentForm = "1"
   newStudentForm.txtAcademicYear.Text = "1"
   txtAcademicYear.frmNewStudent = "1"
.
.  
QUESTION 36

Which of the following is true regarding ASP.NET?
.    ASP.NET is a client-side programming technology.
   ASP.NET is Microsoft's version of HTML and provides the same capabilities as HTML.
   ASP.NET provides many controls that are similar to those used in Windows forms.
   ASP.NET is the first generation of Web programming technology introduced by Microsoft.
.
.  
QUESTION 37

What value should be placed in a Timer control's Interval property to trigger a Tick event every 10 seconds?
.    1000
   10000
   100
   10
.
.  
QUESTION 38

Which of the following SQL WHERE clauses will select all students whose last name begins with "S"?
.    Where LastName Like "S%"
   Where LastName Like "S"
   Where LastName = "S%"
   Where LastName = "S*"
.
.  
QUESTION 39

A menu item may be executed by a user in each of the following ways except __________.
.    by pressing access keys such as Alt-F
   by pressing shortcut keys such as Ctrl-S
   by clicking on the item
   by hovering the mouse over the item
.
.  
QUESTION 40

An instance of a class is also called ______________.
.    a tangible entity
   an object
   a method
   a property
.
.  
QUESTION 41

The DetailsView control allows the user to do which of the following?
.    display multiple rows of a database table at the same time
   connect to a data source
   view but not edit the rows of a database
   all of the above are true
.
.  
QUESTION 42

When using the Remove method of a collection, what happens if the argument provided is a string expression?
.    The item at the index value represented by that string is removed if found in the collection.
   The item with a key value that matches the string is removed if found in the collection.
   A string expression may not be provided as an argument.
   A syntax error occurs.
.
.  
QUESTION 43

A function that is a member of a class is called __________ .
.    a module
   a method
   a component
   an element
.
.  
QUESTION 44

The last form created for a Windows Forms application is designated as the startup form.
.    True
   False
.
.   
QUESTION 45

Which statement is not true about the following array? Dim strFriends() As String = { "Rose", "Bud", "Flower", "Spring" }
.    The String "Flower" is located at index position 2.
   All elements have been assigned values.
   The array has an unlimited number of elements.
   All of the above are true statements about the array.
.
.  
QUESTION 46

Assume the following table named Student exists in a database: Name Number Address GPA  CumHrs
Adams, Carol 123 Redford Hall 3.6 67

Baker, Paul 345 Kingman Hall 2.1 34
Jones, Jill 456 Bassett Hall 3.2 89
Smith, Mary 887 Redford Hall 3.8 112

Taylor, Darren 987 Bassett Hall 3.7 55




Which of the following SQL statements will return only the student name and GPA from the Student table for all students having a GPA that is greater than or equal to 3.5?
.    SELECT Name, GPA FROM Student WHERE GPA >=3.5
   SELECT * FROM Student WHERE GPA >= 3.5
   SELECT Name, Number, GPA, CumHrs FROM Student WHERE GPA >= 3.5
   SELECT Student WHERE GPA >= 3.5 And Name, GPA
.
.  
QUESTION 47

In order to add a menu to a form, you must place a __________ on the form.
.    MenuCommand control
   MenuItem control
   MenuOption control
   MenuStrip control
.
.  
QUESTION 48

This was the first server-side web programming technology introduced by Microsoft.
.    JavaScript
   HTML
   PHP
   ASP
.
.  
QUESTION 49

Which statement is the best solution for the following problem? Write a statement that initializes a two dimensional array of Integers named intGrades. The array will have 2 rows, with 93, 91, and 84 in the first row and 85, 89, and 91 in the second row.
.    Dim intGrades(2,3) As Integer = { {93, 91, 84}, {85, 89, 91} }
   Dim intGrades(,) As Integer = { {93, 91, 84}, {85, 89, 91} }
   Dim intGrades() As Integer = { 93, 92, 84,85, 89, 91}
   Dim intGrades(1, 2) As Integer = { {93, 91, 84}, {85,89, 91} }
.
.  
QUESTION 50

You access public members of a class object with ___________.
.    the getData method
   the access operator
   the dot operator
   a public module
.
.  
QUESTION 51

In the array declaration below, what is the significance of the number 7? Dim strNames(7) As String
.    It indicates the number of elements in the array.
   It's the upper bound (highest subscript value) of the array
   It's the value assigned to the array elements.
   It's one greater than the upper bound of the array.
.
.  
QUESTION 52

All of the following statements are true about the Finalize method of an object except __________.
.    the Finalize method is executed when it is called from the Main method
   the Finalize method is automatically called just before an instance of the class is destroyed
   you cannot predict exactly when the Finalize method will be executed
   you are not required to define a Finalize method in your own class
.
.  
QUESTION 53

Any form in a Windows Forms application can be designated as the startup form.
.    True
   False
.
.  
QUESTION 54

Which of the following operators determines if two object variables reference the same object?
.    =
   IsEqual
   Is
   SameAs
.
.  
QUESTION 55

Which of the following code segments will copy the values of a 5 element array named intOldValues into another 5 element array named intNewValues?
.    intIndex = 1 Do While intIndex <=5 intNewValues(intIndex) = intOldValues(intIndex) intIndex = intIndex + 1 Loop
   intIndex = 0 Do While intIndex < 5 intNewValues(intIndex) = intOldValues(intIndex) intIndex = intIndex + 1 Loop
   For intIndex = 1 To 5 intNewValues(intIndex) = intOldValues(intIndex) Next intIndex
   For intIndex = 0 To 4 intOldValues(intIndex) = intNewValues(intIndex) Next intIndex
.
.  
QUESTION 56

All of the following are true about the Hide method of a form except:
.    Using the Hide method removes the form from memory.
   The Hide method makes the form invisible.
   Once you have called the Hide method, the form can be redisplayed with the ShowDialog method.
   Once you have called the Hide method, the form can be redisplayed with the Show method.
.
.  
QUESTION 57

How many elements can be stored in the following array? Dim sngGrades (2, 3) As Single
.    6
   5
   12
   cannot be determined
.
.  
QUESTION 58

The GridView control provides all the following features except __________.
.    it's designed to display single row at a time is displayed
   you can sort on any column
   you can select the order in which columns appear
   you can format data within the columns
.
.  
QUESTION 59

Which statement does NOT accurately describe a database row?
.    A row contains related data about a single item such as a department.
   A row contains one or more fields.
   When discussing a table, we refer to the rows by name.
   A row is part of a database table.
.
.  
QUESTION 60

Which table adapter method reads data from the database into the dataset?
.    Fill
   Read
   Select
   Retrieve
.
.  
QUESTION 61

The __________ control displays information from a dataset in row and column format.
.    DataAware
   DataGridView
   DataListView
   DataTableView
.
.  
QUESTION 62

Which method allows the user to navigate to another Web page?
.    Redirect.Response
   Hyperlink.Redirect
   Response.Redirect
   Redirect.Hyperlink
.
.  
QUESTION 63

An event handler for a menu item is created by __________ in design view.
.    manually declaring the event handler
   right-clicking the menu item
   double-clicking the menu item
   clicking the menu item
.
.  
QUESTION 64

If there exists a class named People and one wants to create a new class named Student based on the People class, what code segment below shows the correct way to do so?
.    Public Class Student Inherits People
   Public Class Student Includes Class People
   Public Class Student based on People
   Public Class Student :People
.
.  
QUESTION 65

Which of the following displays a message box saying "I have been created" every time a new instance of the class ShowMe is created?
.    Public Class ShowMe MessageBox.Show("I have been created") End Class
   Public Class ShowMe Public Sub Constructor() MessageBox.Show("I have been created") End Sub End Class
   Public Class ShowMe Public Sub Create() MessageBox.Show("I have been created") End Sub End Class
   Public Class ShowMe Public Sub New() MessageBox.Show("I have been created") End Sub End Class
.
.  
QUESTION 66

A ________ is an in-memory copy of data read from database tables.
.    data control
   dataset
   connection
   data adapter
.
.  
QUESTION 67

Web applications use the __________ control instead of the datasets used by desktop applications.
.    Gridview
   Datasource
   Table
   MS Access
.
.  
QUESTION 68

What property must be set on a menu item to have the user activate that option by hitting Ctrl+C?
.    ShortcutKeys
   QuickKey
   HotKey
   ShowShortCut
.
.  
QUESTION 69

Procedures can be written to handle arrays and do all of the following, except __________.
.    store data in an array
   sum or average the values
   display the contents of the array
   all of the above are correct
.
.  
QUESTION 70

Which of the following will display the getStudentDataForm form such that the programming statements that follow will not execute until the getStudentDataForm is closed?
.    getStudentDataForm.Open()
   getStudentDataForm.Show()
   getStudentDataForm.ShowDialog()
   getStudentDataForm.OpenForm.Modal()
.
.  
QUESTION 71

Which of the following is not a TextBox TextMode property choice?
.    Sorted
   SingleLine
   MultiLine
   Password
.
.  
QUESTION 72

Which method is used to create a new item in a collection?
.    Store
   Insert
   Add
   Create
.
.  
QUESTION 73

Every class you create in Visual Basic is automatically derived from this built-in class.
.    Object
   Base
   Window
   Application
.
.  
QUESTION 74

What happens when an object variable goes out of scope?
.    The object may be removed from memory by the garbage collector.
   The object may be referred to using the dot operator.
   An exception error will be generated.
   The object becomes accessible again when the variable comes back into scope.
.
.   
QUESTION 75

A variable is accessible to statements outside the form if declared __________.
.    as Private and class-level
   as Public
   as Public and class-level
   with a Dim statement
.
.  
QUESTION 76

A is a column (or columns) that uniquely identifies each row of data in a database.
.    selector
   main key
   identifier
   primary key
.
.  
QUESTION 77

What is the result of the following section of code? Private Sub btnExit_Click(ByVal sender As System.Object, _ ByVal e as System.EventArgs) Handles btnExit.Click Me.Close() End Sub
.    Shut down the computer
   Log off the current user
   Close the current form
   None of the above
.
.  
QUESTION 78

A _______________ is the design of tables, columns and relationships between tables for the database.
.    data table
   database schema
   data set
   relational model
.
.  
QUESTION 79

Object-oriented programming is a way of designing and coding applications such that interchangeable software can be used to build larger programs.
.    controls
   structures
   components
   languages
.
.  
QUESTION 80

It's possible to access the items in a collection using __________.
.    an integer index of the item to be retrieved
   the Item method to retrieve an item with a specific key value
   a For Each loop
   all of the above
.
.  
QUESTION 81

Web applications are designed around a __________ model, meaning the one computer produces data while another uses data.
.    Client-Server
   Peer-to-Peer
   Master-Slave
   Server-User
.
.  
QUESTION 82

Client programs can query __________ to get values, but they cannot modify them.
.    ReadOnly properties
   Get/Set properties
   Private methods
   Public properties
.
.   
QUESTION 83

What is the error in the following code, and when will it be caught? Dim intValues(5) As Integer Dim intIndex As Integer For intIndex = 0 To 10 intValues(intIndex) = 10 Next intIndex
.    The For Next loop values for intIndex should range from 1 to 10. The error will occur at run time.
   The loop should close with Next instead of Next intIndex. The error will occur at compile time.
   An out of bounds error will occur. The error will occur at run time.
   The For Next loop values for intIndex should range from 1 to 5. The error will occur at compile time.
.
.  
QUESTION 84

The Where clause of an SQL statement specifies __________.
.    the location of the database being queried
   which fields are to be displayed
   specifies the order in which the rows should appear
   specifies which rows should be retrieved
.
.  
QUESTION 85

A web form can be identified by its __________ filename extension.
.    .asp
   .aspx.vb
   .aspx
   .config
.
.  
QUESTION 86

The SQL Select statement retrieves data from a database and returns it in a __________, a set of records matching the selection criteria.
.    Subset
   Dynaset
   DataSource
   Dataset
.
.  
QUESTION 87

Which of the following statements is false?
.    A database can store more data more efficiently than sequential text files.
   When using a large amount of data, most developers prefer to use a DBMS.
   Visual Basic is used to interface with the user and a DBMS works directly with the data.
   Visual Basic statements can directly access database fields without using the DBMS.
.
.  
QUESTION 88

When designing web forms, the Toolbox window contains all of the following groups of controls except:
.    Login to authenticate users.
   Data controls for connecting to data sources.
   WebParts that let the user modify the content and behavior of the web pages.
   Ftp controls for connecting to remote computers.
.
.  
QUESTION 89

What is the simplest way to update a user's changes to the database?
.    No need to save user changes as this occurs automatically
   Use the Update method of a table adapter
   Click the diskette icon to save the dataset to the database
   Call the SaveDataset method of the table adapter
.
.  
QUESTION 90

Which of the following is not true about the Form Activated event?
.    It's executed when a form is initially displayed.
   It's executed each time a form regains the focus.
   It's executed each time the the user clicks a form that does not have the focus.
   It's executed before the Load event procedure is processed.
.
.  
QUESTION 91

When the Web form default.aspx is added to a project, another file named __________ is also created.
.    default.asp
   default.aspx.vb
   default.config
   default.vb
.
.  
QUESTION 92

This property of a control allows it be positioned a specified distance from the outside edge of the form.
.    dock
   anchor
   attach
   secure
.
.  
QUESTION 93

A database _____________is organized into rows and columns.
.    grid
   matrix
   table
   spreadsheet
.
.  
QUESTION 94

The best approach to move a menu item with an existing click event to a new location is:
.    cut the menu item from the old location and paste it into the new location.
   click the menu item and drag it to the new location
   delete the menu item from the old location and add it to the new location
   none of the above
.
.  
QUESTION 95

What is the best way to share functions across more than one project?
.    Create the functions in one project, then copy and paste them into other projects that need them.
   Place the code for the functions in a module and add that module to each project.
   Place the code for the functions in the startup form of each project.
   Place the code inside a Main procedure with a Public access specifier for each function.
.
.  
QUESTION 96

Which Web control is similar to the Windows form ComboBox control?
.    TextBox
   DropDownList
   CheckBoxList
   ListBox
.
.  
QUESTION 97

Which of the following statements sorts an array named intValues?
.    Sort.Array(intValues)
   Sort(intValues)
   Sort.Array(intValues())
   Array.Sort(intValues)
.
.  
QUESTION 98

Which of the following outlines the proper order for connecting a web form to a database?
.    Add a GridView control to the form Select the Data Source type Copy the database file to the App_Data folder Configure the SELECT statement for the database query
   Copy the database file to the App_Data folder Add a GridView control to the form Select the Data Source type Configure the SELECT statement for the database query
   Copy the database file to the App_Data folder Select the Data Source type Configure the SELECT statement for the database query Add a GridView control to the form
   Configure the SELECT statement for the database query Copy the database file to the App_Data folder Select the Data Source type Add a GridView control to the form
.
.  
QUESTION 99

When an ASP.NET application is created, it contains only one file named __________.
.    Default.aspx
   Index.aspx
   Default.htm
   Web.config
.
.  
QUESTION 100
The following are true about a HyperLink control, except __________.
.    its Text property is shown to the user at runtime
   it generates an event
   it allows the user to navigate to another Web page
  its Target property controls whether new page will appear in a separate window
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