In general, the difference is not so big. Even if you are a graduate, you still need to have some knowledge, not necessarily deep, but be sure to study the oil&gas industry, banks, transport, retail. The easiest way is to solve 5-7 different cases on this topic and find a person who understands this. And when you are an experienced hire, you will most likely be interviewed by a consultant with relevant work experience. You may be asked questions specific to the industry but unlikely to cause difficulty given your own experience.