Correct description of firewall

1. These days, the biggest threats to IT security are from ________.

a. “geeks” working on their own and motivated by the desire to gain some degree of notoriety

b. terrorist organizations

c. organized groups that have ample resources, including money and sophisticated tools, to support their efforts

d. international drug cartels

2. Which of the following is the correct description of a firewall?

a. It is a software and hardware combination that limits the incoming and outgoing Internet traffic.

b. ?It is a concept used in developing security policies.

c. ?It is hardware that prevents unauthorized data to enter the private network.

d. ?It is a software that deletes viruses from attachments