What is the primary role of the Web Forms architecture in ASP.NET?
A) To provide a framework for building dynamic, event-driven web applications
B) To create static web pages
C) To handle server-side scripting
D) To manage database connections
Answer: A) To provide a framework for building dynamic, event-driven web applications
In ASP.NET Web Forms, what does the Page class represent?
A) The server-side code behind a web page
B) The HTML structure of the web page
C) The client-side JavaScript code
D) The layout and design of a web page
Answer: A) The server-side code behind a web page
Which event occurs when an ASP.NET Web Forms page is first requested by a client?
A) Page_Init
B) Page_Load
C) Page_PreRender
D) Page_Unload
Answer: A) Page_Init
What is the purpose of the Page_Load event in the Web Forms lifecycle?
A) To initialize controls and set up the page’s state
B) To handle user input and control events
C) To render the page to the client
D) To release resources and perform cleanup
Answer: A) To initialize controls and set up the page’s state
How does ASP.NET Web Forms manage state across postbacks?
A) Using ViewState
B) Using Session State
C) Using Cookies
D) Using Application State
Answer: A) Using ViewState
What is the function of the Page_PreRender event?
A) To prepare the page for rendering
B) To initialize page controls
C) To handle page postbacks
D) To unload resources
Answer: A) To prepare the page for rendering
When does the Page_Unload event occur in the Web Forms lifecycle?
A) After the page has been rendered and sent to the client
B) Before the page is loaded
C) During page initialization
D) During page rendering
Answer: A) After the page has been rendered and sent to the client
What is the role of the Page_Init event in the Web Forms lifecycle?
A) To initialize the page and its controls
B) To handle form submissions
C) To render the page content
D) To process postback data
Answer: A) To initialize the page and its controls
In ASP.NET Web Forms, which property of a control determines if it will be displayed on the page?
A) Visible
B) Enabled
C) ReadOnly
D) Text
Answer: A) Visible
What is the function of the DataBind() method in Web Forms?
A) To bind data to data-bound controls like GridView or Repeater
B) To initialize page controls
C) To handle page events
D) To set control properties
Answer: A) To bind data to data-bound controls like GridView or Repeater
How does ASP.NET Web Forms handle event-driven programming?
A) By providing server-side events like Button_Click and Page_Load
B) By using client-side JavaScript events
C) By handling HTTP requests and responses
D) By managing database transactions
Answer: A) By providing server-side events like Button_Click and Page_Load
What is the purpose of the UpdatePanel control in Web Forms?
A) To perform partial page updates without a full page refresh
B) To handle form submissions
C) To manage user sessions
D) To display static content
Answer: A) To perform partial page updates without a full page refresh
Which event in ASP.NET Web Forms occurs after the page’s data is loaded but before it is rendered?
A) Page_PreRender
B) Page_Load
C) Page_Init
D) Page_Unload
Answer: A) Page_PreRender
How does the ViewState mechanism work in ASP.NET Web Forms?
A) It stores the state of the page and controls between postbacks
B) It stores user session data across multiple pages
C) It caches data to improve performance
D) It stores global application data
Answer: A) It stores the state of the page and controls between postbacks
What does the Page_Load event handler typically do?
A) Initializes page and control properties, and sets up the page for processing
B) Handles user interaction and postback data
C) Renders the page output
D) Manages the page lifecycle
Answer: A) Initializes page and control properties, and sets up the page for processing
Which property of a Web Forms control determines if it is enabled or disabled?
A) Enabled
B) Visible
C) ReadOnly
D) Text
Answer: A) Enabled
What does the CustomValidator control do in ASP.NET Web Forms?
A) Performs custom validation on user input
B) Validates required fields
C) Compares two values
D) Checks if input is within a range
Answer: A) Performs custom validation on user input
In ASP.NET Web Forms, which event is used to handle form submissions?
A) Button_Click
B) Page_Load
C) Page_Init
D) Page_PreRender
Answer: A) Button_Click
How is session state managed in ASP.NET Web Forms?
A) Through Session State
B) Through ViewState
C) Through Application State
D) Through Cookies
Answer: A) Through Session State
What is the role of the PlaceHolder control in Web Forms?
A) To dynamically add or remove controls at runtime
B) To display static text
C) To manage data binding
D) To handle form validation
Answer: A) To dynamically add or remove controls at runtime
What is the purpose of the Repeater control in ASP.NET Web Forms?
A) To display a repeated list of data items with customizable templates
B) To manage user sessions
C) To handle form inputs
D) To display data in a tabular format
Answer: A) To display a repeated list of data items with customizable templates
How can you make sure that a Web Forms page maintains its state between postbacks?
A) By using ViewState
B) By using Session State
C) By using Cookies
D) By using Application State
Answer: A) By using ViewState
What is the Page_Init event used for in Web Forms?
A) To set up and initialize page controls
B) To render page content
C) To handle user interactions
D) To release resources
Answer: A) To set up and initialize page controls
Which property controls whether a control’s state is preserved between postbacks?
A) ViewState
B) Session State
C) Application State
D) Cookies
Answer: A) ViewState
What is the role of the UpdatePanel control in the Web Forms architecture?
A) To perform partial page updates without a full page refresh
B) To manage session state
C) To bind data to controls
D) To create complex data queries
Answer: A) To perform partial page updates without a full page refresh
What is the significance of the Page_PreRender event in the Web Forms lifecycle?
A) It allows for modifications to the page before it is rendered to the client
B) It initializes page controls
C) It handles postback events
D) It releases resources
Answer: A) It allows for modifications to the page before it is rendered to the client
Which ASP.NET Web Forms control is used to display a list of data items with options for customizing the layout?
A) DataList
B) GridView
C) DropDownList
D) CheckBoxList
Answer: A) DataList
What does the Enabled property of a control affect in Web Forms?
A) Whether the control can receive user input
B) Whether the control is visible
C) Whether the control is read-only
D) Whether the control’s state is preserved
Answer: A) Whether the control can receive user input
What does the Page_Error event handle in ASP.NET Web Forms?
A) Unhandled exceptions and errors that occur during page processing
B) Page initialization
C) Page rendering
D) Page cleanup
Answer: A) Unhandled exceptions and errors that occur during page processing
Which event occurs just before the page is sent to the client in the Web Forms lifecycle?
A) Page_PreRender
B) Page_Load
C) Page_Init
D) Page_Unload
Answer: A) Page_PreRender
What is the role of the Session State in ASP.NET Web Forms?
A) To store user-specific data across multiple requests and pages
B) To manage page state
C) To handle application-wide data
D) To store temporary data for a single request
Answer: A) To store user-specific data across multiple requests and pages
Which control is used to manage user input validation in Web Forms?
A) Validation controls like RequiredFieldValidator and RangeValidator
B) Data-bound controls
C) Layout controls
D) Navigation controls
Answer: A) Validation controls like RequiredFieldValidator and RangeValidator
How can you update only a part of a Web Forms page without refreshing the entire page?
A) By using the UpdatePanel control
B) By using AJAX
C) By using client-side JavaScript
D) By setting control properties
Answer: A) By using the UpdatePanel control
Which control is best suited for creating a multi-step process with navigation in Web Forms?
A) Wizard
B) MultiView
C) TabContainer
D) Panel
Answer: A) Wizard
How is data bound to controls in Web Forms?
A) By setting the DataSource property and calling DataBind()
B) By using JavaScript
C) By using server-side events
D) By configuring control properties
Answer: A) By setting the DataSource property and calling DataBind()
What is the purpose of the CustomValidator control?
A) To perform custom validation logic on user input
B) To ensure required fields are filled
C) To compare values in two input fields
D) To validate numeric ranges
Answer: A) To perform custom validation logic on user input
How does ASP.NET Web Forms handle server-side events?
A) By associating event handlers with controls like Button_Click
B) By processing client-side scripts
C) By managing database operations
D) By configuring application settings
Answer: A) By associating event handlers with controls like Button_Click
Which event occurs just before the page is rendered to the client in the Web Forms lifecycle?
A) Page_PreRender
B) Page_Load
C) Page_Init
D) Page_Unload
Answer: A) Page_PreRender
What does the ViewState property enable in ASP.NET Web Forms?
A) The preservation of control and page state across postbacks
B) The management of user sessions
C) The handling of form submissions
D) The storage of application-wide data
Answer: A) The preservation of control and page state across postbacks
What is the primary purpose of the Panel control in Web Forms?
A) To group and organize other controls on a page
B) To handle form submissions
C) To display data in a tabular format
D) To manage validation
Answer: A) To group and organize other controls on a page
Which control allows you to create a list where users can select multiple items?
A) CheckBoxList
B) DropDownList
C) RadioButtonList
D) ListBox
Answer: A) CheckBoxList
What does the Enabled property of a control do?
A) Determines if the control is interactive or not
B) Determines if the control is visible
C) Determines if the control is read-only
D) Determines if the control’s state is preserved
Answer: A) Determines if the control is interactive or not
What is the role of the DataList control in Web Forms?
A) To display data in a customizable format using templates
B) To create a list of selectable items
C) To manage user sessions
D) To handle file uploads
Answer: A) To display data in a customizable format using templates
What is the purpose of the PlaceHolder control?
A) To dynamically insert or remove controls at runtime
B) To manage data binding
C) To handle validation
D) To display static text
Answer: A) To dynamically insert or remove controls at runtime
What is the use of the DataKeyNames property in a GridView control?
A) To specify the primary key fields that uniquely identify each row
B) To set the format of the grid
C) To manage data source binding
D) To handle paging and sorting
Answer: A) To specify the primary key fields that uniquely identify each row
Which Web Forms control is used to create a tabbed interface?
A) TabContainer
B) MultiView
C) Wizard
D) Panel
Answer: A) TabContainer
What does the TextBox control’s Text property represent?
A) The input value entered by the user
B) The visibility of the control
C) The enabled state of the control
D) The read-only status of the control
Answer: A) The input value entered by the user
How is data binding typically performed in Web Forms?
A) By setting the DataSource property and calling DataBind()
B) By using JavaScript to manipulate DOM elements
C) By setting the Text property of controls
D) By configuring event handlers
Answer: A) By setting the DataSource property and calling DataBind()
What is the primary purpose of the Page_Load event handler?
A) To initialize page and control properties
B) To handle user interactions
C) To render the page content
D) To manage application-wide settings
Answer: A) To initialize page and control properties