A dynamic IP address is a temporary Internet Protocol (IP) address which is allotted to a computing system and can change with time. Dynamic IP addresses are usually implemented by ISPs and networks having a large number of connecting clients or end-nodes.
A packet sniffer is a utility used for monitoring network traffic. Some of the popular ones include Wireshark, Wireshark, kismet etc.
The satellite internet is a high-speed internet connection provided through the communication satellites. It is location independent and offers global coverage.