hard drive definitely, online would be a bit risky for me, but if it is easy maybe you could do both?
i would go with portable hard drive, that way, when your internet is down, your still gonna have all your stuff.How hard is it to get A+ certified?
hard drive, it is there and has a less chance of being corrupt. internet, things can get hacked, info lost, or a server crash and you loss everything.How do I clone my hard drive?
You can use online backup or online storage . It preserve your data online so it's a good solution. You can compare all providers here : [link removed]How do I wipe my hard drive?
Off Site Storage is the good techniques by which we can secure our document for long time.External hard drive set-up