1. What is the default HTTP port number?
a. TCP 80
b. TCP 443
c. TCP 23
d. UDP 22
e. UDP 123
2. What is the default HTTPS port number?
a. TCP 80
b. TCP 443
c. TCP 23
d. UDP 22
e. UDP 123
3. Even though the same port number can be used in both TCP and UDP, the services they identify can be completely different (true or false).
a. True
b. False
4. Which of the following are the most commonly used e-mail protocols (choose three)?
a. HTTP
b. POP3
c. SMTP . . .
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