CBSC 415 GMHS Network Design Questions

Using the Internet for research, I want you to design a network with the following attributes:Internet connection OC-48 (How would you order and set it up?)A router that can support an OC48 connectionA Firewall (Packet filtering and SPI)48 port switch MM fiber to 45 workstations1 Active Directory server1 LDAP serverOne printerNow with this information, I expect you to create a secure network that utilizes all of the systems on the network.