JSP-Intermédiaire

1. Which is the life-cycle procedure?

Constructor call=>class loading=>init()=>service()=>destroy()

Class loading=>constructor call=>init()=>service()=>destroy()

Constructor call=>class loading=>service()=>init()=>destroy()

The correct answer is "class loading => constructor call => init() => service() => destroy()". This sequence represents the life-cycle procedure in which a class is loaded, the constructor is called, the init() method is invoked, followed by the service() method, and finally the destroy() method.

Explanation

The correct answer is "class loading => constructor call => init() => service() => destroy()". This sequence represents the life-cycle procedure in which a class is loaded, the constructor is called, the init() method is invoked, followed by the service() method, and finally the destroy() method.

2. What is the meaning of response.setIntHeader("xyz" ,67); ?

Add a new header with integer value

Replace the value to integer to existing header

Replace the value to integer to existing header or Add a new header with integer value

Always add a new header

The method response.setIntHeader("xyz", 67) is used to set the value of a header named "xyz" to the integer value 67. This method will either replace the existing value of the header if it already exists, or add a new header with the integer value if it doesn't exist.

Explanation

The method response.setIntHeader("xyz", 67) is used to set the value of a header named "xyz" to the integer value 67. This method will either replace the existing value of the header if it already exists, or add a new header with the integer value if it doesn't exist.

3. Which statement is not true about ServletContext?

There is one ServletContext per one application

Generally it is used to get web app parameters

We can get Server Information though it

There is one ServletContext per one servlet

The statement "There is one ServletContext per one servlet" is not true about ServletContext. ServletContext is a web application's execution environment and there is only one instance of ServletContext per web application, not per servlet. It provides a way to share data and communicate between servlets and other components within the same web application.

Explanation

The statement "There is one ServletContext per one servlet" is not true about ServletContext. ServletContext is a web application's execution environment and there is only one instance of ServletContext per web application, not per servlet. It provides a way to share data and communicate between servlets and other components within the same web application.

4. What is true about MIME type?

It tells the browser what type of data browser will send

It tells the browser what type of data browser will receive

It tells the server what type of data server will receive

It tells the server what type of data server will send

The MIME type is a standardized way to indicate the type of data that is being sent over the internet. In this case, the correct answer states that the MIME type tells the browser what type of data it will receive. This means that the MIME type is used by the server to inform the browser about the format or structure of the data being sent, allowing the browser to interpret and display the data correctly.

Explanation

The MIME type is a standardized way to indicate the type of data that is being sent over the internet. In this case, the correct answer states that the MIME type tells the browser what type of data it will receive. This means that the MIME type is used by the server to inform the browser about the format or structure of the data being sent, allowing the browser to interpret and display the data correctly.

5. Which tag doesn't belongs to web.xml?

Web-app

Welcome-file-list

Servlet

Servlet-mappings

The tag "servlet-mappings" does not belong to web.xml. The web.xml file is used in Java web applications to configure the deployment settings and mappings for servlets. It includes tags such as "web-app" to define the web application, "welcome-file-list" to specify the default page, and "servlet" to define servlets. However, "servlet-mappings" is not a valid tag in web.xml.

Explanation

The tag "servlet-mappings" does not belong to web.xml. The web.xml file is used in Java web applications to configure the deployment settings and mappings for servlets. It includes tags such as "web-app" to define the web application, "welcome-file-list" to specify the default page, and "servlet" to define servlets. However, "servlet-mappings" is not a valid tag in web.xml.

6. Through which tag you can define servlet config in web.xml?

Config-param

Context-param

Init-param

None

The correct answer is "init-param". In the web.xml file, the "init-param" tag is used to define configuration parameters for a servlet. These parameters can be accessed by the servlet using the getInitParameter() method. The "config-param" tag does not exist in the web.xml specification, making it an incorrect option. The "context-param" tag is used to define configuration parameters for the entire web application, not for a specific servlet. Therefore, it is also an incorrect option. The option "None" is not a valid tag to define servlet config in web.xml.

Explanation

The correct answer is "init-param". In the web.xml file, the "init-param" tag is used to define configuration parameters for a servlet. These parameters can be accessed by the servlet using the getInitParameter() method. The "config-param" tag does not exist in the web.xml specification, making it an incorrect option. The "context-param" tag is used to define configuration parameters for the entire web application, not for a specific servlet. Therefore, it is also an incorrect option. The option "None" is not a valid tag to define servlet config in web.xml.

7. How the web-application get servlet context ?

GetServletContext().getServletConfig().getInitParameter()

GetServletConfig().getInitParameter()

This.getServletConfig().getInitParameter()

All of these

All of these options can be used to obtain the servlet context in a web application. The getServletContext() method returns the ServletContext object, which can be used to access various resources and information about the application. The getServletConfig() method returns the ServletConfig object, which can also be used to access the servlet context. The this.getServletConfig() is another way to access the ServletConfig object. Therefore, all of these options are valid ways to obtain the servlet context in a web application.

Explanation

All of these options can be used to obtain the servlet context in a web application. The getServletContext() method returns the ServletContext object, which can be used to access various resources and information about the application. The getServletConfig() method returns the ServletConfig object, which can also be used to access the servlet context. The this.getServletConfig() is another way to access the ServletConfig object. Therefore, all of these options are valid ways to obtain the servlet context in a web application.

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