Which of the following is MOST effective in detecting such an intrusion?

A system administrator recently informed the IS auditor about the occurrence of several unsuccessful intrusion attempts from outside the organization.

Which of the following is MOST effective in detecting such an intrusion?
A . Periodically reviewing log files
B. Configuring the router as a firewall
C. Using smart cards with one-time passwords
D. Installing biometrics-based authentication

View Answer

Answer: A