6) Describe the role of the cell in a cell phone network. Be sure to explain why small cells are frequently preferred over large cells.

7) Explain what an MTSO does in a cell phone network

8) Explain the difference between the datagram approach to packet switching, as found on the Internet, compared to the virtual circuit approach, as found on private WANs.

9) Between what two generations would we find the greatest difference in cell phone voice quality? Explain why that would be the case.

10) Compare a WAN connection between two offices using a VPN to one using a private WAN.