CompTIA A+ Question I-98

A new firewall has recently been installed and several users are now unable to access the Internet. Which of the following ports is MOST likely being blocked?

A. 23
B. 25
C. 80
D. 110

Correct Answer: C

Explanation:
http://en.wikipedia.org/wiki/Port_80

CompTIA A+ Question I-98

Which of the following private network types would MOST likely be used for a corporation with 100,000 employees?

A. Class A
B. Class B
C. Class C
D. APIPA

Correct Answer: A