smoothing, trend and seasonality are the 3 drop down options

Which forecast method requires that you know the period of the data? Which forecast method should be used when the data has no overall upwards or downwards movement and no repeating pattern? Which forecast method should be used when the data moves down to the right and has no repeating pattern? Which forecast method should be used when the data has a repeating pattern and an upward trend? Which forecast method should be used when the data has a repeating pattern with no overall upwards or downwards movement