Implementing a Buzzer round in an online web application RRS feed

  • Question

  • Hello,

    I am working on a designing assignment for an online quiz application.  I am facing a design constraint in developing a BUZZER round for users at different geographical locations.

    Main idea is to capture the timestamp from client machine and do the analysis on server as to know pressed the buzzer first.

    But relying on a Client clock for capturing timestamp  (client can play with system clock) seems a bit odd.

    Also i cannot measure the timestamp at which server has received the buzzer response as due to network lagging a user who has pressed the buzzer fastest but network made him reach to server at last.

    I am not much experienced in system design.!!

    Please suggest.

    Sunday, November 24, 2013 5:52 AM