Eccouncil 312-38 Exam Questions

An Intrusion Detection System (IDS) is designed to monitor network or system activities for malicious actions or policy violations. The correct order of activities that an IDS follows to detect an intrusion starts withIntrusion Monitoring, where it observes the network traffic or system events. Following this,Intrusion Detectiontakes place, where the IDS analyzes the monitored data to identify potential security breaches. Once a potential intrusion is detected, theResponsemechanism is activated to address the intrusion, which may include alerts or automatic countermeasures. Finally,Preventionis applied to improve the system's defenses against future intrusions based on the detected patterns and responses.

The topology that the network designer will propose is known as a screened subnet. This topology involves the use of two or more firewalls to create a network segment referred to as a demilitarized zone (DMZ). The DMZ acts as a buffer zone between the public internet and the internal network. It contains the public-facing servers, such as the web portal mentioned, which is isolated from the internal network for added security. The screened subnet topology typically includes a firewall at the network's edge connected to the internet, another firewall separating the DMZ from the internal network, and the DMZ itself. This setup allows for strict control of traffic between the internet, the DMZ, and the internal network, providing an additional layer of security.

AppLocker whitelists applications by creating rules that specify which files are allowed to run. One of the primary methods for specifying these rules is through the use of Path Rules. Path Rules allow administrators to specify an allowed file or folder path, and any application within that path is permitted to run. This method is particularly useful for allowing applications from a known directory while blocking others that are not explicitly approved.

Ryan is implementing a low interaction honeypot with Kojoney. Low interaction honeypots are designed to emulate services and applications to a certain degree without exposing the real underlying system. They provide a safe environment that can be used to study the attacker's behavior and methods without the risk of compromising the actual system.Kojoney, specifically, is a low interaction honeypot that emulates an SSH server1. It uses minimal resources and is less complex compared to high interaction honeypots, making it easier to deploy and manage. By simulating network vulnerabilities rather than actual system vulnerabilities, Kojoney can attract attackers and record their interaction, which helps in understanding the attack patterns and potentially identifying the attackers.

The False Positive rate (FPR) is a measure used in statistics and network security to evaluate the performance of a security system. It is calculated by dividing the number of false positives (FP) by the sum of false positives (FP) and true negatives (TN). The formula is represented as:

FPR=FP+TNFP

This rate indicates how often benign activities are incorrectly flagged as malicious, which is crucial for a network administrator like Daniel to understand the reliability of the security measures implemented.