412-79V10 Question #31: Real Exam Question with Answer & Explanation

Bob was assigned to attack network switches of an organization to steal confidential information such as network subscriber information, passwords, etc. He started transmitting data through one switch to another by creating and sending two 802.1Q tags, one for the attacking switch and the other for victim switch. By doing so, he made sure that the attacking switch became aware of the second 802.1Q tag and sent it to the victim switch, which resulted in the victim switch accepting the traffic. He successfully collected the confidential information. From the given scenario, identify the type of attack being performed by the attacker?