CompTIA Network+ (N10-007) — Question 577

A disgruntled employee executes a man-in-the-middle attack on the company network. Layer 2 traffic destined for the gateway is redirected to the employee's computer. This type of attack is an example of:

Answer options

• A. ARP cache poisoning
• B. IP spoofing
• C. amplified DNS attack
• D. evil twin

Correct answer: A

Explanation

The correct answer is A, ARP cache poisoning, as this attack involves altering the ARP cache to redirect traffic to an unauthorized device. IP spoofing (B) involves falsifying the source address of packets, which is not the case here. An amplified DNS attack (C) is a different type of denial-of-service attack, and an evil twin (D) refers to a rogue Wi-Fi access point mimicking a legitimate one, which does not apply to this Layer 2 scenario.