Network Defense Essentials (NDE) Practice Exam

The correct answer is the post-mortem analysis, which is a critical component of the security forensics process. This phase involves a detailed examination and investigation into security incidents after they have occurred. The purpose of post-mortem analysis is to gather evidence, understand the attack vectors used, assess the damages, and identify opportunities for improving security measures.

Conducting post-mortem analyses helps organizations learn from incidents by analyzing what went wrong, how the breach occurred, and what specific security protocols failed. This information is invaluable for creating more robust security policies and strategies, thereby enhancing the organization’s ability to prevent and respond to future incidents effectively. Additionally, post-mortem analysis can provide insights into how similar incidents can be avoided and what areas of security need to be improved.

In contrast, implementing firewalls, conducting vulnerability scans, and access management are all preventive and proactive measures aimed at securing a system before a security incident occurs, rather than analyzing and learning from incidents that have already taken place. These actions are essential for a comprehensive security strategy but are not directly involved in the forensic analysis which focuses on post-incident investigation and analysis.