Dubai, in common with Qatar, has astranomical rents. Paying a year up front for rent is normal.
Some of the companies (but not all) offer a loan in order for you to comply with that rule.
If you are working for a government or semi-government organisation, I am certain that the loan is available.
Should you leave the company within 12 months with an outstanding balance on the loan, you will have to repay that outstanding balance immediately.
I am unsure of the going rate for a graphic designer but any offer is likely to be on the low side. Dubai is not known as a great payer. This is caused predominantly by the availability of cheaper manpower from the sub-continent.
Another trend in the UAE is to withdraw the car loan facility in favour of paying the interest on any bank loan that you take out to purchase a vehicle.

Dubai has changed a lot of late and is not unlike a giant builder's yard.
Good luck