JSP is a technology on the server side to make ______ easier.
- Client-side scripting
- Java programming
- Server-side scripting
- Web development
JSP (JavaServer Pages) is a technology on the server side to make server-side scripting easier. It allows the embedding of Java code in HTML pages for dynamic content generation.
How should a servlet handle session tracking when a user's privacy settings restrict cookie usage?
- Database Session
- HTTP Session
- Hidden Form Fields
- URL Rewriting
When a user's privacy settings restrict cookie usage, session tracking can be handled using Hidden Form Fields. This involves including session information in HTML forms.
The deployment descriptor file used to configure a servlet in a web application is named __________.
- servlet-config.xml
- web-app.xml
- web-config.xml
- web.xml
The deployment descriptor file used to configure a servlet in a web application is named web.xml.
What is the significance of the path attribute in a cookie?
- It defines the cookie's value
- It indicates the cookie's path
- It sets the cookie's domain
- It specifies the cookie's name
The path attribute in a cookie is significant as it indicates the URL path for which the cookie is valid. The client sends the cookie only if the path matches the requested URL.
In what scenario is it more appropriate to use RequestDispatcher over HttpServletResponse's sendRedirect?
- When maintaining the original URL is crucial
- When preserving client-side state is necessary
- When the resource is on a different server
- When the resource is on the same server
RequestDispatcher is more appropriate when you need to forward a request internally within the server, maintaining the original URL. This is especially important when you want to keep the original URL in the browser's address bar.
How does the servlet container handle HTTP headers when using RequestDispatcher's forward method?
- HTTP headers are discarded
- HTTP headers are duplicated
- HTTP headers are modified
- HTTP headers are preserved
When using RequestDispatcher's forward method, the servlet container discards the original response headers, allowing the forwarded resource to generate a new set of headers. This is important to avoid conflicts and ensure that the forwarded resource has control over the headers.
How can a servlet handle form data containing non-ASCII characters?
- Convert the data to ASCII
- Set the character encoding using setCharacterEncoding()
- This is not possible
- Use the getEncoding()
To handle form data containing non-ASCII characters, you should set the character encoding using the setCharacterEncoding(String encoding) method of the HttpServletRequest object.
How is the ServletContext obtained in a servlet?
- Using the getServletConfig() method of the HttpServletRequest object.
- Using the getServletConfig() method of the ServletContext object.
- Using the getServletContext() method of the HttpServletRequest object.
- Using the getServletContext() method of the ServletConfig object.
The getServletContext() method of the HttpServletRequest object is used to obtain the ServletContext in a servlet.
How does a servlet differentiate between GET and POST requests?
- By request headers
- By session cookies
- By the request URL
- By the request body
A servlet differentiates between GET and POST requests by examining the request body. GET requests append data to the URL, while POST requests send data in the request body.
In a scenario where cookies are disabled, which session tracking technique can be employed?
- HTTP Session
- Hidden Form Fields
- IP Address Tracking
- URL Rewriting
URL Rewriting is a session tracking technique that can be employed when cookies are disabled. It involves appending session information to URLs.