For example, if bitcoin is going to crash and I exchanged it into $1200 Ethereum lets say. And it goes down to $800 USD, will the Ethereum value go down?
Could you exchange your bitcoin into another currency to be protected from a crash?
I think Coins like Doge, LTC , USDCOIN all of these are 99.9% stable always in the same price, 0.01% prob that you are very very very unlucky and it drop when you buy but I don't think it will happen.
What do you think ?
Price decrease normally happen so better just hold whatever you have in bitcoin since in the long run, if you really believe that bitcoin is for long term investment, will eventually reached again it's considered high price.
And while doing that, use your extra funds to diversify your investment by taking the risk of investing in other alts like the one you mentioned as an example.
Bitcoin crash is different from bitcoin price crash.