An attack that is using interference as its main attack to impede network traffic is which of the following?

Introducing too much data to a target's memory allocation describes a buffer overflow attack, which is a memory exploitation technique, not an interference-based network attack.

Utilizing a previously unknown security flaw describes a zero-day exploit, which targets unpatched vulnerabilities in software or hardware rather than using wireless interference to impede traffic.

Using a similar wireless configuration of a nearby network describes an interference-based attack where an attacker configures a rogue access point with the same SSID, channel, or signal parameters as a legitimate network. This causes RF interference and signal contention, impeding legitimate clients from connecting or communicating effectively. This is the hallmark of interference-based wireless attacks, such as an evil twin or channel jamming through SSID spoofing.

Inundating a target system with SYN requests describes a SYN flood attack, which is a denial-of-service attack that exhausts TCP connection state tables, not an interference-based wireless disruption method.