Refer to the information below to answer the question.
A new employee is given a laptop computer with full administrator access. This employee does not have a personal computer at home and has a child that uses the computer to send and receive e-mail, search the web, and use instant messaging. The organization's Information Technology (IT) department discovers that a peer-to-peer program has been installed on the computer using the employee's access.
Which of the following solutions would have MOST likely detected the use of peer-to-peer programs when the computer was connected to the office network?
Correct Answer: B
The best solution to detect the use of P2P programs when the computer was connected to the office network is an Intrusion Prevention System (IPS). An IPS is a device or a software that monitors, analyzes, and blocks the network traffic based on the predefined rules or policies, and that can prevent or stop any unauthorized or malicious access or activity on the network, such as P2P programs. An IPS can detect the use of P2P programs by inspecting the network packets, identifying the P2P protocols or signatures, and blocking or dropping the P2P traffic. Anti-virus software, anti-spyware software, and integrity checking software are not the best solutions to detect the use of P2P programs when the computer was connected to the office network, as they are related to the protection, removal, or verification of the software or files on the computer, not the monitoring, analysis, or blocking of the network traffic. References: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 4, Communication and Network Security, page 512. Official (ISC)2 CISSP CBK Reference, Fifth Edition, Chapter 4, Communication and Network Security, page 528.