If DCA (dollar cost averaging) is a trading strategy, I am not aware of it. DCA is a strategy that is mostly used by some investors while accumulating Bitcoin in their portfolio. For "stop loss and take profit," some trading platforms already have it as a feature in their platform, while for some of those platforms that don't have it, it's left for the trader to come up with their own strategy on how to handle their stop loss and take profit because it's simple. If you are an experienced trader, then you will have a certain profit you want to archive, but sometimes the market trend never gets to your predicted level before it begins to go against your prediction; in that case, you can just opt out (stop loss) and take the little profit you got.