Schneider, G. P. (2015). Electronic Commerce (11th ed.). Stamford, CT: Cengage Learning. ISBN: 978-1-285-425436 — Chapter 10 and Chapter 11
Assume you are working for a that sells products on its Web site and that the the computers that run its Web server, , and in the office next to yours. Describe what a is and explain how your employer might use one to more of these devices to protect its servers.