Which type of network attack involves methods like reconnaissance, sniffing, and spoofing?

The correct choice refers to Unauthorized Access Incidents, as this type of attack encompasses various methods aimed at breaching security and gaining access to restricted information or systems. Reconnaissance is the initial phase where attackers gather information about the target, which can include scanning networks, studying configurations, and identifying potential vulnerabilities. Sniffing involves intercepting and logging traffic flowing over a network, which can reveal sensitive data such as passwords and other confidential information. Spoofing involves impersonating another device or user to bypass security measures and gain unauthorized access to resources.

In contrast, the other options describe different attack categories. Inappropriate Usage Incidents typically relate to the improper use of resources by employees, such as accessing non-work-related websites or using company equipment for personal matters. Denial-of-Service Incidents focus on overwhelming a network or application to prevent legitimate access, which differs from the tactics employed in unauthorized access scenarios. Wireless Network Incidents specifically address vulnerabilities related to wireless communication but do not inherently cover the broader techniques of reconnaissance, sniffing, and spoofing used to gain unauthorized access.