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Interview Questions and Answers for 'Session management' - 6 question(s) found - Order By Newest

 Q1. What is session tracking and how do you track a user session in servlets?Java EE
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Ans. Session tracking is a mechanism that servlets use to maintain state about a series requests from the same user across some period of time. The methods used for session tracking are:

User Authentication - occurs when a web server restricts access to some of its resources to only those clients that log in using a recognized username and password

Hidden form fields - fields are added to an HTML form that are not displayed in the client's browser. When the form containing the fields is submitted, the fields are sent back to the server

URL rewriting - every URL that the user clicks on is dynamically modified or rewritten to include extra information. The extra information can be in the form of extra path information, added parameters or some custom, server-specific URL change.

Cookies - a bit of information that is sent by a web server to a browser and which can later be read back from that browser.

HttpSession- places a limit on the number of sessions that can exist in memory.

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   Like      Discuss      Correct / Improve     j2ee   servlets   session   session management   web applications   cookies   httpsession   url rewriting   architecture     Infosys


 Q2. What are different types of cookies ?Java EE
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Ans. Session cookies , which are deleted once the session is over.

Permanent cookies , which stays at client PC even if the session is disconnected.

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   Like      Discuss      Correct / Improve     j2ee   servlets   session   session management   web applications   cookies   httpsession


 Q3. What is a cookie ?Java EE
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Ans. A cookie is a small piece of text stored on a user's computer by the browser for a specific domain. Commonly used for authentication, storing site preferences, and server session identification.

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   Like      Discuss      Correct / Improve     cookie   javascript   web application   session management   browser   j2ee     Wayfair  OpenBet  Akamai      basic        frequent


 Q4. what is the use of cookie and session ? and What is the difference between them ?Java EE
Anonymous
Ans. Cookie and Session are used to store the user information. Cookie stores user information on client side and Session does it on server side. Primarily, Cookies and Session are used for authentication, user preferences, and carrying information across multiple requests. Session is meant for the same purpose as the cookie does. Session does it on server side and Cookie does it on client side. One more thing that quite differentiates between Cookie and Session. Cookie is used only for storing the textual information. Session can be used to store both textual information and objects.

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   Like      Discuss      Correct / Improve     session   session management   java   cookies   authentication   web application   ebay      intermediate


 Q5. Why using cookie to store session info is a better idea than just using session info in the request ?Java EE
Admin
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Ans. Session info in the request can be intercepted and hence a vulnerability. Cookie can be read and write by respective domain only and make sure that right session information is being passed by the client.

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   Like      Discuss      Correct / Improve     j2ee   servlets   session   session management   web applications   cookies   httpsession   architecture


 Q6. http protocol is by default ... ?Java EE
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Ans. stateless

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   Like      Discuss      Correct / Improve     j2ee   servlets   session   session management   web applications   cookies   httpsession   architecture




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