1. Internet is a computer networking system. (a) What is TCP/IP? (b) What is Packet Switching? 2. What is the Domain Name Server on the Internet? How does it relate to an IP address? 3. What is 5 G Wireless Internet? How is 5 G different from 4G? 4. What is a Modem? What is a Router? 5. What is Bluetooth RFID? What are its applications?.