A firewall is a commonly used technique for safeguarding Internet and extranet transactions. It acts as a barrier between a company's internal network and the Internet, allowing only authorized traffic to pass through while blocking unauthorized access. It is an important security measure for protecting sensitive and confidential information from cyber threats such as hackers, viruses, and malware.

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A Firewall Is A(n)

Question 100

Multiple Choice

A firewall is a(n) .

A) method of communicating with e- commerce customers
B) effective method for efficiently linking buyer and seller Web sites
C) method for increasing employee productivity
D) commonly used technique to safeguard Internet and extranet transactions
E) tool used by hackers to infiltrate corporate Web sites

Correct Answer: