CompTIA Network+ Practice Tests, 3rd Edition

Chapter 7Practice Test 2

1. Which of the following definitions best describes the function of a firewall?
   1. A device that connects two networks forwarding traffic between them as needed
   2. A device located between two networks that enables administrators to restrict incoming and outgoing traffic
   3. A device that caches Internet data for subsequent use by internal network clients
   4. A device that enables Internet network clients with private IP addresses to access the Internet
2. Review the following figure. Each of the switches has three ports connected to computers and one port for switch-to-switch connections. All of the computer ports and links are configured for half-duplex communication. The switch-to-switch links are configured for full-duplex communication. ...