Business can be found in every sector of world so that there is always a need of administrative professionals to run that business successfully.
An administrative should analyze all the activities and processes in the business organization and must ensure its efficient functioning. Sales and Marketing, Finance and accounting, human Resources and legal operations in an organization will be administered and managed by these professionals.
http://www.trafficgeyser.net/lead/business-administration
http://www.schoolanduniversity.com/study-programs/business/business-administration