How are requests forwarded from servlets to the appropriate view in an MVC framework?
- Forward
- Include
- Redirect
- Response.sendRedirect()
Requests from servlets to the appropriate view in an MVC framework are forwarded using the Forward mechanism, allowing seamless interaction between the controller and the view components.
What role do servlets play in handling controller logic in MVC frameworks?
- Servlets are responsible for rendering views in MVC frameworks.
- Servlets handle the controller logic by processing and managing user requests.
- Servlets manage database connections in MVC architectures.
- Servlets primarily focus on handling presentation logic in MVC.
Servlets play a crucial role in handling controller logic by processing and managing user requests, directing them to the appropriate components in the MVC architecture.
In MVC architecture, how does a servlet interact with the model to process business logic?
- Servlets communicate with the model through JavaBeans or other business logic components.
- Servlets directly manipulate the model by interacting with the database.
- Servlets have no interaction with the model in MVC.
- Servlets use JSPs exclusively to handle business logic in MVC.
Servlets interact with the model by communicating through JavaBeans or other dedicated business logic components to process business logic in an MVC application.
How are servlets used in conjunction with JSPs in a typical MVC application?
- Servlets and JSPs are interchangeable and can be used for any MVC role.
- Servlets and JSPs are not used together in MVC applications.
- Servlets handle business logic, and JSPs handle presentation logic.
- Servlets handle presentation logic, and JSPs handle controller logic.
In a typical MVC application, servlets are often used to handle business logic, while JSPs are used for presentation logic. Servlets and JSPs work together to achieve a separation of concerns in MVC.
How can servlets be effectively used to implement the front controller pattern in an MVC application?
- Delegate control to JSP pages
- Directly connect the servlets to the database
- Implement a central servlet that handles all incoming requests
- Use multiple servlets for each controller action
Servlets can effectively implement the front controller pattern by having a central servlet that handles all incoming requests, allowing for a centralized point to manage request handling in an MVC architecture.
In an advanced MVC framework, how is the decision made in a servlet to select a specific view based on business logic?
- All views are pre-defined in a configuration file
- Views are dynamically determined based on business logic
- Views are hardcoded in the servlet
- Views are randomly selected
In an advanced MVC framework, the decision to select a specific view is often based on dynamic business logic, allowing for flexibility in choosing views based on the outcome of the application's processing.
How do servlet filters complement the MVC architecture in web applications?
- Filters can preprocess requests and post-process responses, adding a layer of functionality
- Filters cannot be integrated with MVC architecture
- Filters handle only authentication tasks
- Filters replace the need for controllers in MVC
Servlet filters complement the MVC architecture by providing a mechanism to preprocess requests and post-process responses. They add a layer of functionality that can be applied across multiple components, enhancing the flexibility of the MVC design.
In an MVC framework, a servlet often delegates business logic processing to __________.
- DAO
- controller
- model
- view
In an MVC framework, a servlet often delegates business logic processing to the controller layer, which is responsible for handling user input and coordinating the application's response.
The servlet forwards the processed data to the view using the __________ mechanism.
- forward
- include
- request
- response
The servlet forwards the processed data to the view using the forward mechanism, allowing the view to render the updated information based on the servlet's processing.
Servlets in an MVC framework typically receive user input through __________.
- cookies
- hidden fields
- request parameters
- session attributes
Servlets in an MVC framework typically receive user input through request parameters, which are data sent by the client as part of the HTTP request and can be accessed by the servlet.