Most of your client's sales force have been told that they should no longer report to the office on a daily basis. From now on, they're to spend the majority of their time on the road calling on customers. Each member of the sales force has been issued a laptop computer and told to connect to the network nightly through a remote connection. Which of the following protocols is widely used today as a transport protocol for remote Internet connections?
a. SMTP
b. PPP
c. PPTP
d. L2TP
Answer: B
PPP can pass multiple protocols and is widely used today as a transport protocol for remote connections.