I don't really know because it was the plumber who installed it, but I think it's long enough because he used the one in the article. The dishwasher is suitable for a household of 2 to 4 people.
Yes, the dishwasher can be connected to the tap. It requires a fixed water connection and is supplied with a water inlet hose including a water stop. It cannot be filled manually.
Does it have a hose on it that you can put in the sink, for example? Preferably with a small attachment so that the waste water hose doesn't splash around in the sink.