Certified Ethical Hacker (CEH v11) — Question 222

Robin, a professional hacker, targeted an organization's network to sniff all the traffic. During this process, Robin plugged in a rogue switch to an unused port in the LAN with a priority lower than any other switch in the network so that he could make it a root bridge that will later allow him to sniff all the traffic in the network.
What is the attack performed by Robin in the above scenario?

Answer options

• A. ARP spoofing attack
• B. STP attack
• C. DNS poisoning attack
• D. VLAN hopping attack

Correct answer: B

Explanation

The correct answer is B, STP attack, as Robin's method of introducing a rogue switch with a lower priority exploits the Spanning Tree Protocol to become the root bridge, enabling traffic interception. The other options, while valid types of attacks, do not pertain to the manipulation of network switches or the Spanning Tree Protocol, making them incorrect in this context.