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Welcome to our JSP (JavaServer Pages) quiz! This blog post presents a set of Multiple Choice Questions (MCQs) to test your knowledge of JSP concepts. JSP is a technology used to develop dynamic web pages in Java. Let's dive in and put your JSP skills to the test!.
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1. What does JSP stand for?
a) Java Server Pages
b) Java Servlet Pages
c) Java Script Pages
d) Java Static Pages
Answer:
a) Java Server Pages
Explanation:
JSP stands for Java Server Pages. It is a technology used to create dynamic web content using Java.
2. Which of the following is a correct syntax for a JSP expression?
a) <% expression %>
b) <%= expression %>
c) <%@ expression %>
d) <%! expression %>
Answer:
b) <%= expression %>
Explanation:
The correct syntax for a JSP expression is <%= expression %>. This is used to insert the result of an expression directly into the output stream.
3. Which of the following tags is used to include a file in JSP?
a) <%@ include file="filename" %>
b) <% include file="filename" %>
c) <%@ file="filename" %>
d) <%@ include="filename" %>
Answer:
a) <%@ include file="filename" %>
Explanation:
The <%@ include file="filename" %> directive is used to include a file at the time the JSP page is translated into a servlet.
4. Which of the following is the correct way to declare a variable in JSP?
a) <% int x = 10; %>
b) <%! int x = 10; %>
c) <%= int x = 10; %>
d) <%@ int x = 10; %>
Answer:
b) <%! int x = 10; %>
Explanation:
The correct way to declare a variable in JSP is using the <%! %> syntax. This declares a variable at the class level of the generated servlet.
5. Which directive is used to define page-level settings in JSP?
a) <jsp:page>
b) <%@ page %>
c) <% page %>
d) <jsp:directive.page>
Answer:
b) <%@ page %>
Explanation:
The <%@ page %> directive is used to define page-level settings, such as character encoding, buffer size, and content type in JSP.
6. What is the purpose of the <jsp:forward> action in JSP?
a) To include another resource at runtime
b) To forward the request to another resource
c) To output data to the client
d) To set an HTTP header
Answer:
b) To forward the request to another resource
Explanation:
The <jsp:forward> action is used to forward the request to another resource (like another JSP page or a servlet) on the server.
7. Which of the following is NOT a valid JSP scope?
a) page
b) request
c) session
d) application
e) response
Answer:
e) response
Explanation:
The "response" is not a valid JSP scope. The valid scopes are "page," "request," "session," and "application."
8. What is the use of the <jsp:useBean> action?
a) To create an instance of a Java bean
b) To declare a Java variable
c) To call a method on a bean
d) To include a JavaScript file
Answer:
a) To create an instance of a Java bean
Explanation:
The <jsp:useBean> action is used to create an instance of a Java bean or retrieve an existing one from the given scope.
9. Which of the following is a correct way to specify an error page in JSP?
a) <%@ page errorPage="error.jsp" %>
b) <jsp:errorPage="error.jsp">
c) <jsp:directive.errorPage="error.jsp">
d) <% errorPage="error.jsp" %>
Answer:
a) <%@ page errorPage="error.jsp" %>
Explanation:
The correct way to specify an error page in JSP is by using the <%@ page errorPage="error.jsp" %> directive.
10. What is the purpose of the <jsp:getProperty> action?
a) To set a property on a bean
b) To get a property value from a bean
c) To call a bean method
d) To forward the request to another resource
Answer:
b) To get a property value from a bean
Explanation:
The <jsp:getProperty> action is used to retrieve a property value from a Java bean and insert it into the output.
11. Which method is used to include the output of another servlet or JSP page?
a) include()
b) includeFile()
c) forward()
d) dispatch()
Answer:
a) include()
Explanation:
The include() method of the RequestDispatcher interface is used to include the output of another servlet or JSP page.
12. Which of the following is NOT a valid JSP directive?
a) <%@ page %>
b) <%@ include %>
c) <%@ taglib %>
d) <%@ forward %>
Answer:
d) <%@ forward %>
Explanation:
The <%@ forward %> is not a valid JSP directive. The valid directives are "page," "include," and "taglib."
13. What is the use of the <jsp:setProperty> action?
a) To set a property value on a bean
b) To get a property value from a bean
c) To forward the request to another resource
d) To include another resource at runtime
Answer:
a) To set a property value on a bean
Explanation:
The <jsp:setProperty> action is used to set a property value on a Java bean from a request parameter or a fixed value.
14. Which of the following is a correct syntax for a JSP comment?
a) <!-- comment -->
b) <%-- comment --%>
c) <%= comment %>
d) <% comment %>
Answer:
b) <%-- comment --%>
Explanation:
The correct syntax for a JSP comment is <%-- comment --%>. This comment is not sent to the client.
15. Which of the following is true about JSP?
a) JSP pages are compiled into servlets
b) JSP pages are interpreted at runtime
c) JSP pages cannot use Java code
d) JSP is a server-side scripting language
Answer:
a) JSP pages are compiled into servlets
Explanation:
JSP pages are compiled into servlets, which are then executed by the server to generate dynamic content.
16. What does the "isThreadSafe" attribute of the page directive indicate in JSP?
a) Whether the JSP page is thread-safe or not
b) Whether the JSP page uses JavaScript
c) Whether the JSP page is safe from SQL injection
d) Whether the JSP page is safe from XSS attacks
Answer:
a) Whether the JSP page is thread-safe or not
Explanation:
The "isThreadSafe" attribute of the page directive indicates whether the JSP page is thread-safe. The default value is "true."
17. Which method of the HttpServletRequest object is used to retrieve form data in a JSP page?
a) getParameter()
b) getFormData()
c) getRequestParameter()
d) getRequestData()
Answer:
a) getParameter()
Explanation:
The getParameter() method of the HttpServletRequest object is used to retrieve form data in a JSP page.
18. What is the default session tracking mechanism used by JSP?
a) Cookies
b) URL rewriting
c) Hidden form fields
d) SSL sessions
Answer:
a) Cookies
Explanation:
The default session tracking mechanism used by JSP is cookies.
19. Which of the following is used to forward a request to another JSP page?
a) response.forward()
b) request.forward()
c) jsp:forward
d) RequestDispatcher.forward()
Answer:
d) RequestDispatcher.forward()
Explanation:
The RequestDispatcher.forward() method is used to forward a request from one JSP page to another.
20. Which of the following is a valid scope for a Java bean in JSP?
a) global
b) instance
c) request
d) thread
Answer:
c) request
Explanation:
The "request" is a valid scope for a Java bean in JSP. Other valid scopes are "page," "session," and "application."
Conclusion
Congratulations on completing the JSP Quiz! We hope it challenged your knowledge of JSP concepts and helped you brush up on your skills. JSP is a powerful technology for developing dynamic web pages in Java and mastering its concepts is essential for building robust web applications.
Learn and Master Java Programming: Learn Java Programming with Examples
Check out 100+ quiz questions: 100+ Quiz Questions to Test Your Java, Spring Boot, Microservices, Hibernate, REST API Skills
Remember to continue practicing and exploring JSP concepts to enhance your proficiency. Stay curious and keep learning!.
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