title: How to persist student online quiz data in case of power failure
body: <p>I need a suggestion about a scenario. E.g. if a student is taking assessment quiz online from his home and during this quiz ...the elecricity failure happens in the middle of quiz. so in that scenario, how would we manage the state. I mean what could be the possible solution for that.. the solution can be in any form. Please give ur suggestions about how would you handle that situation. Previously, the states are being stored using sessions and cache.</p>
  
  <p>Thanks in advance.</p>