What is the purpose of the AsyncContext in asynchronous servlets?
- To manage asynchronous operations
- To manage request attributes
- To manage servlet configuration
- To manage session attributes
The purpose of the AsyncContext in asynchronous servlets is to manage asynchronous operations, providing methods for starting and completing asynchronous tasks.
What method is used to complete the asynchronous process and send a response?
- complete()
- finalize()
- finish()
- sendResponse()
The complete() method is used to complete the asynchronous process and send a response in asynchronous servlets.
How can a servlet determine if an incoming request supports asynchronous processing?
- canAsyncProcess()
- isAsyncRequest()
- isAsyncSupported()
- supportsAsync()
The isAsyncSupported() method is used by a servlet to determine if an incoming request supports asynchronous processing.
How does asynchronous processing in servlets improve server resource utilization?
- Increases server load
- Increases thread blocking
- No impact on thread blocking
- Reduces thread blocking
Asynchronous processing reduces thread blocking, allowing the server to handle more requests without waiting for each to complete, thus improving resource utilization.
What is the role of the AsyncListener in the servlet's asynchronous mode?
- Controlling servlet initialization
- Handling asynchronous errors
- Initiating asynchronous tasks
- Monitoring asynchronous operations
The AsyncListener plays a role in monitoring asynchronous operations, allowing developers to respond to events such as the start and completion of asynchronous tasks or handling errors in asynchronous processing.
How does asynchronous processing affect the servlet's lifecycle?
- Extends the servlet lifecycle
- No impact on the servlet lifecycle
- Pauses the servlet lifecycle
- Shortens the servlet lifecycle
Asynchronous processing can extend the servlet lifecycle, as it allows tasks to continue beyond the usual request-response cycle, providing more flexibility in handling long-running operations.
The method __________ is called to start asynchronous processing in a servlet.
- asynchronous()
- beginAsync()
- initAsync()
- startAsync()
The startAsync() method is called to initiate asynchronous processing in a servlet.
The __________ method of AsyncContext is used to dispatch the request to another servlet.
- dispatch()
- forward()
- include()
- sendRedirect()
The dispatch() method of AsyncContext is used to dispatch the request to another servlet during asynchronous processing.
What is the primary use of RequestDispatcher in servlets?
- Forwarding requests
- Initializing servlets
- Processing GET requests
- Sending redirect responses
The primary use of RequestDispatcher in servlets is for forwarding requests to another resource (servlet, JSP, or HTML) on the server.
To add an AsyncListener to an AsyncContext, use the __________ method.
- addAsyncListener()
- addListener()
- attachListener()
- registerListener()
To add an AsyncListener to an AsyncContext, use the addAsyncListener() method.