Data communications question | Computer Science homework help

A large company has many different departments housed in a large office complex in the city. Each department has its own database of local information. The company wants to let all the employees from around the company acces any of these database. What type of network would you recommend for such a situation?



Must have knowlodge about different networks and know there stuff. I need at least 2 paragraphs answering this question. DUE in 24 hours.