They will offer you free shared accommodation as part of your package, for the entire time you are employed with them. Each apartment has 2-3 rooms and most likely you will have your own bathroom as well as your own room of course.
If you want to live outside company accommodation you can - and they will give you rent allowance for it. But if you move out remember you will have to launder your own uniform and provide your own transport to/from the airport.
When you first join you may have to stay in a hotel rather than an apartment for a while however until they sort out a room for you.