Yesterday’s question was:

How many versions of your file history can you retain at SOS Online Backup so you can roll back to a previous version at any time?

The correct answer, from SOS Online Backup Service is:

Unlimited version history

You can keep unlimited versions of your file history backed up online, up to your account limit. You can win a 50gb account free for a year playing Trivia in this round! Come back Monday for a new Trivia Question and another chance to win!