what is internet cookie and it is able to spread the virus?Explain why cookies are used and what is about facebook cooki

[Vijay Konduskar]

cookies are used to store variables in web application like , purchase order name, username , any numeric ;calculation etc , at other hand sessions are used to store user session in web site , it also mapped d with time stamping , cookies cab be viewed if you check web browser cookie setting , Browser URL consist of query string and data , the data is stored in cookies for further processing , cookies are in key :id pair example: name:"abc",or id:1234 etc,social networking sites or any other sites who implement user management system uses session mechanism , to performed operation with cookies , cookies can be stored on user computer or server , FB uses session based management to store cookies with added security layers and encryption