These are usually vocational and practical job-related programs which are usually technical and last up to 2 years. These usually depends on the type of course one is choosing to do which lasts from 1 to 2 years. International students with 3 years of bachelors back in their country can do 1 year of diploma certification to make their education of 4 years after which they can apply for graduate courses at various Canadian universities. People who want to settle in Canada also require some kind of Canadian experience and a course which helps in increasing their PR points.