The correct answer is B. Pre-infection . IPS is categorized as a pre-infection Threat Prevention blade because its primary role is to stop exploitation attempts before the protected host becomes compromised. Check Point’s Threat Prevention guide describes IPS as protection against malicious and unwanted network traffic, focusing on application and server vulnerabilities, in-the-wild attacks, exploit kits, and malicious attackers. The same guide distinguishes Anti-Bot & Advanced DNS as post-infection detection of bots on hosts, while Anti-Virus is described as pre-infection detection and blocking of malware at the gateway.
IPS belongs in the pre-infection stage because it prevents the exploit chain from succeeding. It inspects network traffic for vulnerability exploitation, protocol abuse, malformed payloads, known CVE exploitation attempts, server attacks, client attacks, and suspicious patterns that could lead to compromise. “Preventative†is broadly true as an English description, but it is not the specific Check Point lifecycle classification tested here. “Inline†describes where a security function may sit in traffic flow, not the infection-stage category. “Post-infection†is associated with Anti-Bot, which detects and blocks command-and-control communications after a host shows signs of compromise. Reference topics: IPS Software Blade, pre-infection prevention, exploit protection, Threat Prevention architecture, Anti-Bot post-infection contrast.