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Servlet Interview Questions And Answers
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Choose correct ansewrs
1. Servlet is a Java technology based Web component.
2. Servlet servlets are platform-independent
3. Servlet has run on Web server which has a containers
4. Servlets interact with Web clients via a request/response using HTTP protocol.
A.1,2,3,4
B.1,2,3
C.1,3,4
D.None |
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zee |
Which of the following are interface?
1.ServletContext
2.Servlet
3.GenericServlet
4.HttpServlet
A.1,2,3,4
B,1,2
C.1,3,4
D.1,4 |
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14.03.10 Rajesh Kumar |
Which of the following are class?
1.ServletContext
2.Servlet
3.GenericServlet
4.HttpServlet
A.1,2,3,4
B,1,2
C.3,4
D.1,4 |
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14.03.10 Rajesh Kumar |
Which of the following methods are main methods in life cycle of servlet?
1.init()
2 .service()
3.destroy()
4.srop()
5.wait()
A.1,2,3,4,5
B,1,2,3
C.3,4,5
D.1,4,5 |
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14.03.10 Rajesh Kumar |
init(),service() and destroy()methods are define in
1.javax.servlet.Servlet interface
2.javax.servlet.ServletHttp class
3.javax.servlet.ServletRequest interface
4.javax.servlet.ServletResponse interface
A.1,2,3,4,5
B,1
C.3,4,5
D.1,4,5 |
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14.03.10 Rajesh Kumar |
Int init() ,.service() and destroy() methods which methods are call only once at life cycle of servlets
1.init()
2.service()
3.destroy()
A.1,2,3
B,1,3
C.2
D.None |
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14.03.10 Rajesh Kumar |
During initialization of servlet a servlet instance can throw
1.An UnavailableException
2 A ServletException
3.Both
4.None |
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14.03.10 Rajesh Kumar |
Is Servlet thread Safe?
1.Yes
2.No
3.None |
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14.03.10 Rajesh Kumar |
ServletContext is
1. an Interface
2.A container which is used to store an object so that it is available for whole application
3.A container which is used to store an object so that it is available for session only.
4.A container which is used to store an object so that it is available for request only.
A.1,2,3,4
B.1,2
C.1,3,4
D.4 |
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14.03.10 Rajesh Kumar |
A servlet can access the headers of an HTTP request through which following methods of the HttpServletRequest interface:
1.getHeader()
2 getHeaders()
3.getHeaderNames()
4.All
5.None |
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14.03.10 Rajesh Kumar |
Which option is true for HttpServletRequest interface to access Path information?
1.getContextPath()
2.getServletPath()
3.getPathInfo()
4.None |
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14.03.10 Rajesh Kumar |
Choose correct header methods to set header which is define into HttpServletResponse interface :
1. setIntHeader()
2.setDateHeader()
3.addIntHeader()
4. addDateHeader()
5.All
6.None |
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14.03.10 Rajesh Kumar |
Which is not method of HttpServletRespons interface :
1. sendRedirect()
2. sendError()
3. setIntHeader()
4. setDateHeader()
5. addIntHeader()
6.None
|
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Prasad |
Which syntax is correct to configure filter in web.xml
1.
<filter>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</filter>
2.
<mapping-filter>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</ mapping-filter >
3.
< configure-filter >
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</ configure-filter >
4.
<filters>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</filters> |
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14.03.10 Rajesh Kumar |
Which syntax is correct for mapping filter in web.xml
1.
<filter>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</filter>
2.
<mapping-filter>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</ mapping-filter >
3.
<filter-mapping>
<filter-name> R4RLoginFilter </filter-name>
<servlet-name>R4RLoginFilter </servlet-name>
</filter-mapping>
4.
<filters>
<filter-name>R4RLoginFilter</filter-name>
<filter-class>com.acme.R4RLoginFilter</filter-class>
</filters> |
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29.06.10 hello |
Which is correct syntax for include a file?
1.
String path = “/abc.jsp;
RequestDispatcher rd = context.getRequestDispatcher(path);
rd.include(request, response);
2.
String path = “/abc.jsp;
RequestDispatcher rd = request.getRequestDispatcher(path);
rd.include(request, response);
3.
String path = “/abc.jsp;
RequestDispatcher rd = response.getRequestDispatcher(path);
rd.include(request, response);
4.
String path = “/abc.jsp;
RequestDispatcher rd = session.getRequestDispatcher(path);
rd.include(request, response); |
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kartic sharma |
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