Q. Which of the following statements is correct about the firewall?
A. It is a device installed at the boundary of a company to prevent unauthorized physical access.
B. It is a device installed at the boundary of an incorporate to protect it against the unauthorized access.
C. It is a kind of wall built to prevent files form damaging the corporate.
D. None of the above.
Answer: It is a device installed at the boundary of an incorporate to protect it against the unauthorized access.