There are three different methods commonly used for capturing network data. These are (1) using a network tap, (2) using a SPAN port on a switch, and (3) using a tool built into a network device (tcpdump is often built into proxy servers and firewalls).

2. How well does each method work?
4. What are some of the benefits and drawbacks of each?
6. How much does each cost?
8. Provide a list of devices available that provide each type of network capture.