Question 1

Which of the following is true about servlets?
A)Servlets execute within the address space of web server
B)Servlets are platform-independent because they are written in java
C)Servlets can use the full functionality of the Java class libraries
D)Servlets execute within the address space of web server, platform independent and uses the functionality of java class libraries

Accepted Answer

D is correct because it encompasses all the accurate statements about servlets: they execute within the web server's address space, are platform-independent due to being Java-based, and can utilize the full Java class libraries.

Question 2

Which method is used to specify before any lines that uses the PrintWriter?
A)setPageType()
B)setContextType()
C)setContentType()
D)setResponseType()

Accepted Answer

The correct method is setContentType(). It is used to specify the MIME type of the content being sent to the client, typically used in servlets before writing the response body with PrintWriter.

Question 3

Which of the following are the session tracking techniques?
A)URL rewriting, using session object, using response object, using hidden fields
B)URL rewriting, using session object, using cookies, using hidden fields
C)URL rewriting, using servlet object, using response object, using cookies
D)URL rewriting, using request object, using response object, using session object

Accepted Answer

Session tracking can be achieved through URL rewriting, using session objects, using cookies, and using hidden fields. These methods help maintain state between the server and the client across multiple requests.

Question 4

The getSession() method with „true? as its parameter [ getSession(true) ] it will return the appropriate session object when
A)the session is completed
B)the session object is passed to another method
C)the session does not exists
D)the session is existing

Accepted Answer

The getSession(true) method creates a new session if one does not exist and returns the existing session if it does.

Question 5

A servlet maintain session in
A)Servlet container
B)Servlet context
C)Servlet request heap
D)Servlet response heap

Accepted Answer

The answer of A servlet maintain session in
A)Servlet container
B)Servlet context
C)Servlet...

Question 6

Servlet mapping defines
A)an association between a URL pattern and a servlet
B)an association between a URL pattern and a request page
C)an association between a URL pattern and a response page
D)All of the above

Accepted Answer

Servlet mapping is specifically used to define an association between a URL pattern and a servlet, allowing the servlet container to correctly route requests to the appropriate servlet based on the URL accessed by the client.

Question 7

The life cycle of a servlet is managed by
A)servlet context
B)servlet container
C)the supporting protocol (such as http or https)
D)all of the above

Accepted Answer

The servlet container is responsible for managing the life cycle of a servlet, which includes loading and instantiating the servlet, invoking its init, service, and destroy methods at the appropriate times.

Question 8

The init parameter name and value pairs that are defined in web.xml file are handled by
A)ServletConfig object
B)ServletContext object
C)ServletRequest object
D)ServletResponse object

Accepted Answer

The ServletConfig object is used to pass configuration information to Servlets during initialization. The init parameters defined in the web.xml file are accessed by Servlets through the ServletConfig object.

Question 9

How many ServletContext objects are available for an entire web application?
A)One each per servlet
B)One each per request
C)One each per response
D)Only one

Accepted Answer

For an entire web application, there is only one ServletContext object. It is created when the application is started and is shared across all components of the application.

Question 10

Which of the following package contains servlet classes?
A)javax.servlet
B)javax.servlet.http
C)Both of the above
D)None of the above

Accepted Answer

Both javax.servlet and javax.servlet.http packages contain servlet classes. The javax.servlet package contains the generic interfaces and classes that are implemented by servlets, while javax.servlet.http is specifically for HTTP servlets.

Question 11

Which page directive should be used in JSP to generate a PDF page?
A)contentType
B)generatePdf
C)typePDF
D)contentPDF

Accepted Answer

The contentType page directive is used in JSP to specify the MIME type of the document being returned to the client. For generating a PDF page, you would set this to "application/pdf".

Question 12

Which tag should be used to pass information from JSP to included JSP? A)Using <%jsp:page> tag B)Using <%jsp:param> tag C)Using <%jsp:import> tag D)Using <%jsp:useBean> tag

Accepted Answer

The answer of Which tag should be used to pass...

Question 13

Application is instance of which class?
A)javax.servlet.Application
B)javax.servlet.HttpContext
C)javax.servlet.Context
D)javax.servlet.ServletContext

Accepted Answer

The correct answer is D) javax.servlet.ServletContext. In Java Servlet API, the ServletContext interface provides a servlet with a view of the web application within which the servlet is running. It allows the servlet to obtain information about its environment and to log events, obtain URL references to resources, and set and share attributes.

Question 14

_jspService() method of HttpJspPage class should not be overridden.
A)True
B)False
C)none
D)all

Accepted Answer

The _jspService() method is automatically implemented by the JSP container and contains the code converted from JSP. It is not meant to be overridden by developers, as doing so could cause the JSP page to not function as intended.

Question 15

Which option is true about session scope?
A)Objects are accessible only from the page in which they are created
B)Objects are accessible only from the pages which are in same session
C)Objects are accessible only from the pages which are processing the same request
D)Objects are accessible only from the pages which reside in same application

Accepted Answer

Session scope means that objects stored in session scope are accessible to any page in the same session, not limited by the page they were created on, the request being processed, or the specific application structure.

Question 16

Default value of autoFlush attribute is?
A)true
B)false
C)none
D)all

Accepted Answer

The default value of the autoFlush attribute is true, meaning that the buffer is automatically flushed when it is full.

Question 17

Which one is the correct order of phases in JSP life cycle?
A)Initialization, Cleanup, Compilation, Execution
B)Initialization, Compilation, Cleanup, Execution
C)Compilation, Initialization, Execution, Cleanup
D)Cleanup, Compilation, Initialization, Execution

Accepted Answer

The correct order of phases in the JSP life cycle is Compilation, Initialization, Execution, Cleanup.

Question 18

"request" is instance of which one of the following classes?
A)Request
B)HttpRequest
C)HttpServletRequest
D)ServletRequest

Accepted Answer

"request" is typically an instance of the HttpServletRequest class in the context of Java Servlets, which is used to represent client requests in web applications.

Question 19

Which is not a directive?
A)include
B)page
C)export
D)useBean

Accepted Answer

The correct answer is C) export. This is because "export" is not a JSP (JavaServer Pages) directive. The other options, "include", "page", and "useBean", are all valid JSP directives used for including files, specifying page-dependent attributes, and declaring JavaBeans for use in JSP pages, respectively.

Question 20

Which is mandatory in tag?
A)id, class
B)id, type
C)type, property
D)type,id

Accepted Answer

id is mandatory in tag because it is used to identify the element uniquely.

Quiz 3: Servlets and JSPS

Which of the following is true about servlets?

Which method is used to specify before any lines that uses the PrintWriter?

Which of the following are the session tracking techniques?

The getSession() method with „true? as its parameter [ getSession(true) ] it will return the appropriate session object when

A servlet maintain session in

Servlet mapping defines

The life cycle of a servlet is managed by

The init parameter name and value pairs that are defined in web.xml file are handled by

How many ServletContext objects are available for an entire web application?

Which of the following package contains servlet classes?

Which page directive should be used in JSP to generate a PDF page?

Which tag should be used to pass information from JSP to included JSP?

Application is instance of which class?

_jspService() method of HttpJspPage class should not be overridden.

Which option is true about session scope?

Default value of autoFlush attribute is?

Which one is the correct order of phases in JSP life cycle?

"request" is instance of which one of the following classes?

Which is not a directive?

Which is mandatory in tag?