ECCouncil Updated 312-50v13 Exam Questions and Answers by camille

The correct answer is C. Reconnaissance. In CEH methodology, reconnaissance is the initial information-gathering phase where an ethical hacker collects details about the target before deeper testing begins. CEH-aligned material defines reconnaissance as gathering information about a target using active or passive means, and it commonly includes discovering network ranges, live hosts, open ports, operating system details, services, and organizational information. Active reconnaissance involves direct interaction with the target, such as sending probes, scans, or packets, which can provide accurate information but may be detected. Passive reconnaissance collects information without directly contacting the target, often using public sources such as websites, social media, WHOIS, DNS records, and search engines. Obfuscation is related to hiding activity, exploitation refers to using a vulnerability to gain access, and denial of service focuses on disrupting availability. Therefore, the step known for active and passive information gathering is Reconnaissance.

The capabilities described match an enterprise Wireless Intrusion Prevention System (WIPS) tightly integrated with WLAN infrastructure: it uses access points as sensors (placing selected APs into passive scan/monitor mode), correlates and aggregates alarms from multiple controllers into a central engine for analysis and forensic retention, and can push automated countermeasures across the campus (such as coordinated channel scanning and remote configuration enforcement) when a device is classified as malicious. This is most consistent with Cisco Adaptive Wireless IPS.

Cisco’s adaptive WIPS model uses the existing Cisco wireless architecture (controllers and APs) to provide campus-wide monitoring and enforcement. The phrase “selected APs into a passive scan mode” is a strong indicator of adaptive sensor use—APs can be dedicated or time-sliced for scanning, and the system can coordinate coverage across channels. The centralized engine concept also aligns with enterprise WIPS deployments that collect events and alarms from multiple controllers for correlation and long-term storage, supporting incident investigation and compliance.

Why the other options are less fitting:

Fern WiFi Cracker (C) is an attack/assessment tool, not a production defensive platform, and it does not provide centralized alarm aggregation and automated enterprise countermeasures.

RFProtect (B) is a known wireless security/WIPS solution family, but the question’s feature set and wording (“adaptive,” APs used for passive scanning, controller-integrated countermeasures) most closely matches Cisco’s adaptive WIPS concept.

WatchGuard Wi-Fi Cloud WIPS (A) is a vendor-managed WIPS offering; while it can provide monitoring, the scenario stresses multi-controller aggregation into a central engine and coordinated campus countermeasures via WLAN infrastructure—again aligning best with Cisco’s controller/AP ecosystem.

Therefore, the best answer is D. Cisco Adaptive Wireless IPS.

Remote File Inclusion occurs when an application allows external resources to be loaded from user-controlled input. CEH teaches that an attacker can supply a remote URL pointing to a malicious script (for example, a PHP shell). When the vulnerable application includes this external file, the attacker ' s code executes on the server. This can lead to full system compromise, remote command execution, or lateral movement.

This scenario demonstrates SMTP Enumeration, a classic enumeration technique described in CEH v13 Network Enumeration. SMTP servers may expose commands such as VRFY, EXPN, and RCPT TO, which can be abused to validate user accounts.

When these commands are enabled without restriction, attackers can enumerate valid usernames without authentication. The Nmap script used explicitly leverages these commands, confirming the misconfiguration.

Option B is incorrect because authentication is not bypassed. Option C concerns DNS routing, not user enumeration. Option D relates to encryption, not enumeration capability.

CEH v13 strongly recommends disabling or restricting SMTP user verification commands. Thus, Option A is correct.