Ethical Hacking Essentials Practice Test

What attack did Clark perform when he spoofed his physical address with that of a legitimate client?

1. MAC duplicating

2. ARP spoofing

3. DHCP starvation

4. DNS poisoning

The correct answer is: MAC duplicating

The attack that involves spoofing a physical address with that of a legitimate client is known as MAC duplicating. This method enables an attacker to take on the identity of another device on the network by copying its Media Access Control (MAC) address. By doing this, the attacker can potentially intercept network traffic meant for the legitimate device, gain unauthorized access to network resources, or evade network security measures. In scenarios where MAC duplicating occurs, it is crucial to understand how the network uses MAC addresses to identify devices. When two devices on the same network have the same MAC address, it can lead to conflicts and confusion within that network, allowing the attacker to execute various malicious activities, including man-in-the-middle attacks or denial-of-service. The other choices involve different forms of attacks. ARP spoofing relates to sending forged ARP messages to connect the attacker's MAC address with the IP address of a legitimate device, allowing for interception of traffic. DHCP starvation focuses on exhausting all DHCP lease addresses to deny legitimate devices the ability to obtain an IP address. Lastly, DNS poisoning entails corrupting the DNS cache with incorrect mappings of domain names to IP addresses for malicious purposes. Each of these attacks has its own characteristics and methods but does not specifically involve the act of