ASP.NET Web Forms MCQs

What is ASP.NET Web Forms primarily used for?
A) Creating console applications
B) Developing desktop applications
C) Building dynamic web applications
D) Designing mobile applications
Answer: C) Building dynamic web applications

Which file extension is associated with ASP.NET Web Forms?
A) .asp
B) .aspx
C) .php
D) .html
Answer: B) .aspx

What is the code-behind file in ASP.NET Web Forms used for?
A) Writing server-side logic
B) Writing client-side scripts
C) Styling the web page
D) Defining the database schema
Answer: A) Writing server-side logic

Which directive is used to bind a Web Form to its code-behind file?
A) @Page
B) @Form
C) @CodeBehind
D) @Include
Answer: A) @Page

How can you maintain state between postbacks in Web Forms?
A) ViewState
B) Session
C) Cookies
D) All of the above
Answer: D) All of the above

What is the default event for an ASP.NET Button control?
A) TextChanged
B) Click
C) SelectedIndexChanged
D) Command
Answer: B) Click

In ASP.NET Web Forms, what is a Postback?
A) When a form is submitted to the server
B) When the server sends a response to the client
C) When JavaScript is executed
D) When a session starts
Answer: A) When a form is submitted to the server

What is ViewState in ASP.NET Web Forms?
A) Client-side state management
B) Server-side state management
C) Session management
D) Database management
Answer: A) Client-side state management

Which method is used to redirect the user to another page in Web Forms?
A) Server.Transfer
B) Response.Redirect
C) Server.Redirect
D) Page.Transfer
Answer: B) Response.Redirect

What is the default method of transferring data between ASP.NET Web Forms?
A) QueryString
B) ViewState
C) Session
D) Cookies
Answer: B) ViewState

Which of the following is a server-side control in ASP.NET Web Forms?
A) Button
B) TextBox
C) DropDownList
D) All of the above
Answer: D) All of the above

Which control is used to create a tabular structure to display data in ASP.NET Web Forms?
A) Repeater
B) GridView
C) ListView
D) DetailsView
Answer: B) GridView

What is the primary purpose of the Web.config file in ASP.NET Web Forms?
A) Defining the page layout
B) Configuring application settings
C) Managing session state
D) Controlling the design of web pages
Answer: B) Configuring application settings

Which of the following state management techniques stores data on the client-side in ASP.NET Web Forms?
A) Session
B) ViewState
C) Application
D) Cache
Answer: B) ViewState

Which event occurs first in the ASP.NET Web Forms page lifecycle?
A) Page_Load
B) Page_Init
C) Page_PreRender
D) Page_Unload
Answer: B) Page_Init

How can you store small amounts of data on the client-side in an ASP.NET Web Form?
A) Session
B) ViewState
C) Cache
D) Cookies
Answer: B) ViewState

What does the “runat” attribute signify in ASP.NET Web Forms?
A) That the control should be run on the server
B) That the control should be run on the client-side
C) That the control is a static element
D) None of the above
Answer: A) That the control should be run on the server

In ASP.NET Web Forms, what does the IsPostBack property check?
A) Whether the page is being accessed for the first time
B) Whether a control is disabled
C) Whether the page is being loaded for the second or subsequent time
D) Whether ViewState is enabled
Answer: C) Whether the page is being loaded for the second or subsequent time

Which control in ASP.NET Web Forms is used to display a list of items from a data source?
A) ListBox
B) DropDownList
C) Repeater
D) All of the above
Answer: D) All of the above

Which of the following is not a type of validator control in ASP.NET Web Forms?
A) RangeValidator
B) RegularExpressionValidator
C) PatternValidator
D) RequiredFieldValidator
Answer: C) PatternValidator

What does the GridView control provide in ASP.NET Web Forms?
A) Tabular display of data
B) Paging and sorting features
C) Editing and deleting capabilities
D) All of the above
Answer: D) All of the above

How do you disable ViewState for a control in ASP.NET Web Forms?
A) Set EnableViewState=false
B) Set ViewStateMode=Disabled
C) Both A and B
D) None of the above
Answer: C) Both A and B

Which event fires after all controls have been initialized in ASP.NET Web Forms?
A) Page_Load
B) Page_PreRender
C) Page_Init
D) Page_Unload
Answer: A) Page_Load

Which session state mode stores session data in a state server?
A) InProc
B) StateServer
C) SQLServer
D) Custom
Answer: B) StateServer

How can a Web Form be prevented from submitting multiple times?
A) Use the IsPostBack property
B) Disable the submit button after first submission
C) Use JavaScript to block multiple clicks
D) All of the above
Answer: D) All of the above

What does the Application object represent in ASP.NET Web Forms?
A) State information shared across all users
B) Session data for a single user
C) Server-side cache
D) Client-side data
Answer: A) State information shared across all users

How can you create a reusable component in ASP.NET Web Forms?
A) Create a Web User Control
B) Create a class file
C) Use a master page
D) Both A and B
Answer: D) Both A and B

What does Session.Abandon() do in ASP.NET Web Forms?
A) Resets the ViewState
B) Ends the user session and clears all session data
C) Logs the user out
D) Clears the server cache
Answer: B) Ends the user session and clears all session data

Which method is used to force a page to reload in ASP.NET Web Forms?
A) Page.Refresh()
B) Response.Redirect()
C) Server.Transfer()
D) None of the above
Answer: B) Response.Redirect()

How do you bind data to a DropDownList in ASP.NET Web Forms?
A) Use the DataBind() method
B) Set the DataSource property
C) Both A and B
D) None of the above
Answer: C) Both A and B

What is the purpose of the Runat="server" attribute in ASP.NET Web Forms?
A) To indicate that the control is processed on the server
B) To indicate that the control is client-side
C) To indicate the form has JavaScript code
D) To link the form to a CSS file
Answer: A) To indicate that the control is processed on the server

What is the purpose of the MasterPage in ASP.NET Web Forms?
A) To define a consistent layout for pages
B) To include JavaScript functions
C) To manage session data
D) To handle postbacks
Answer: A) To define a consistent layout for pages

Which method is used to retrieve the values stored in ViewState?
A) ViewState.GetValue()
B) ViewState.Get()
C) ViewState()
D) ViewState[“key”]
Answer: D) ViewState[“key”]

What is the role of the Server.Transfer method in ASP.NET Web Forms?
A) To transfer the request to another page on the server without changing the URL
B) To redirect the user to another server
C) To reload the current page
D) To transfer the control to another server
Answer: A) To transfer the request to another page on the server without changing the URL

How can you optimize the performance of an ASP.NET Web Forms application?
A) Use ViewState where necessary
B) Cache frequently accessed data
C) Minimize server controls and postbacks
D) All of the above
Answer: D) All of the above

In which event can you dynamically change the contents of a GridView before it is rendered?
A) Page_Load
B) RowDataBound
C) PreRender
D) Page_Init
Answer: B) RowDataBound

Which control would you use to allow a user to upload a file in ASP.NET Web Forms?
A) FileUpload
B) FileInput
C) UploadControl
D) FileSelect
Answer: A) FileUpload

Which caching type stores page responses to improve performance in ASP.NET Web Forms?
A) Application Caching
B) Output Caching
C) Data Caching
D) Session Caching
Answer: B) Output Caching

How can you enforce a required field on a form in ASP.NET Web Forms?
A) Use the RequiredFieldValidator control
B) Set the field to “Required” in HTML
C) Validate the form on the server
D) Use the ValidateField control
Answer: A) Use the RequiredFieldValidator control

Which control allows you to paginate large data in a GridView?
A) PageSizeControl
B) DataPager
C) Paginator
D) Paging
Answer: B) DataPager

What is the purpose of the ValidationSummary control in ASP.NET Web Forms?
A) Display a list of validation errors on the page
B) Summarize the form data
C) Highlight incorrect fields
D) Perform server-side validation
Answer: A) Display a list of validation errors on the page

What does the AutoPostBack property do in an ASP.NET Web Forms control?
A) Automatically submits the form when a value changes
B) Disables postback functionality
C) Forces a control to be posted to the client
D) None of the above
Answer: A) Automatically submits the form when a value changes

Which of the following controls allow inline editing in ASP.NET Web Forms?
A) Repeater
B) GridView
C) ListView
D) DetailsView
Answer: B) GridView

How can you manage session data in ASP.NET Web Forms?
A) Store it in the Session object
B) Store it in Cookies
C) Store it in ViewState
D) All of the above
Answer: A) Store it in the Session object

What is the Page.IsValid property used for in ASP.NET Web Forms?
A) Checks whether all validation controls on the page are valid
B) Validates the session
C) Verifies the server connection
D) None of the above
Answer: A) Checks whether all validation controls on the page are valid

How can you bind a database to a GridView in ASP.NET Web Forms?
A) Using SqlDataSource
B) Using ObjectDataSource
C) Using LinqDataSource
D) All of the above
Answer: D) All of the above

Which of the following is a valid method to start an ASP.NET session?
A) Session_Start()
B) Application_Start()
C) Session.Create()
D) None of the above
Answer: A) Session_Start()

Which control is used to create hyperlinks in ASP.NET Web Forms?
A) HyperLink
B) LinkControl
C) UrlLink
D) LinkButton
Answer: A) HyperLink

What is the role of the IIS in ASP.NET Web Forms applications?
A) Web server that processes requests and serves responses
B) Database management
C) Client-side rendering
D) None of the above
Answer: A) Web server that processes requests and serves responses

How do you display detailed information about a specific item in ASP.NET Web Forms?
A) Use DetailsView
B) Use GridView
C) Use Repeater
D) Use ListView
Answer: A) Use DetailsView