Plant Bio
If the plant becomes too tall for the space then there is what we like to call the "leap of faith chop". This involves literally cutting / sawing a large top section of the plant off, usually in early Spring. This results in nothing more than a fancy looking "log" or "stump" sticking out of the pot. However in a short time the plant should produce new offsets from the cut edge.
The top bit you have removed with all the leaves can be potted up in a different pot of compost as a separate plant. Make sure you firm it in well to prevent it falling or rocking itself out of the pot.
Plant Care
Water
Water your Yucca liberally during warmer months of the year. Like all plants it's impossible to give rigid watering intervals, but if conditions are exceptional (bright, warm etc) you could be looking to do this as frequently as once a week or more. The soil should dry out a little between watering's. In Winter a lot less water is required.
Sunlight
The Yucca plant is one garden and houseplant which will be quite happy with as much sun as you can give it. Indoors a South facing window would be the first choice. Whatever your light situation try to provide as much as possible. Less bright conditions will slow growth considerably (which may be an advantage) however very shady and dark spots must be avoided to maintain a healthy looking plant.
Ambient
Maintain temperatures between 18°C - 24°C. Avoid draughts as these can create undesirable temperature fluctuations. Consider giving your plant an occasional misting twice every week to maintain the optimum humidity level.
Nutrients
A feed once a month or so would be appreciated during the growing seasons.