A network security administrator needs to monitor the contents of data sent between a secure network and the rest of the company. Which of the following monitoring methods will accomplish this task?
A. port mirroring
The capability of many advanced switches to mirror data from any or all physical ports on a switch to a single physical port. Useful for any type of situation where an administrator needs to inspect packets coming to or from certain computers.
The correct answer is:
A. Port mirroring
Port mirroring is a technique used on a network switch to duplicate (or "mirror") the traffic from one or more ports to another port where a monitoring device, such as a network analyzer or intrusion detection system, is connected. This allows the administrator to monitor the contents of data being sent between the secure network and the rest of the company.
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