Question 9: When selecting the Service of "TELNET" for the Services section of a DFW rule, what is being matched on?

Choice: (choose correct answer): 

() Layer 4 protocol of TCP, and a destination TCP port of 23
() Layer 4 protocol of UDP, and a destination UDP port of 23
() Layer 4 protocol of TCP, and a destination TCP port of 22
() Layer 4 protocol of TCP, and a destination TCP port of 21


Answer: Layer 4 protocol of TCP, and a destination TCP port of 23