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Pass the 300-215 exam with a guide built the way the exam actually thinks. The 300-215 exam doesn't test whether you can recite definitions — it tests whether you can read a log line, a process tree, a packet capture, or a code snippet and know exactly what to do next.

This unofficial Complete Learning Guide is built around that reality. Every one of the exam's five domains is covered in full, and the book's structure mirrors the exam itself: each chapter maps one-to-one to a domain, and its length matches that domain's weight — so the time you invest is always proportional to what the exam tests most.

What's inside All five domains, in proportion to their exam weight — Fundamentals (20%),

Forensics Techniques (20%),

Incident Response Techniques (30%),

Forensics Processes (15%), andI

ncident Response Processes (15%). 18 original diagrams — the DFIR lifecycle, the alert-triage flow, the attack surface, the threat-intelligence cycle, STIX/TAXII relationships, and more. Every figure is drawn from scratch to make one concept click at a glance.

159 practice questions — five knowledge-check questions after every sub-section, each with a clear explanation, and correct answers evenly balanced across A/B/C/D so you learn the material, not the pattern. Runnable examples — real YARA rules, Volatility and tcpdump commands, Wireshark display filters, objdump output, and Python/PowerShell/Bash log-parsing scripts you can actually try.

Field-tested insight — Exam Tips flag what's frequently tested, Common Pitfalls warn you off the traps, and From-the-Field boxes show how each concept plays out in real investigations. A hands-on lab appendix and a 56-term glossary to turn knowledge into exam-day confidence. Who it's for Security analysts, SOC engineers, incident responders, and network professionals moving into digital forensics and incident response — whether you're preparing for the exam or simply want a clear, practical grounding in modern DFIR. Learn to think like an analyst By the end, you'll do instinctively what the exam rewards: read the evidence, form a hypothesis, and confirm it. You'll tell an IDS from an IPS, an IOC from an IOA, polymorphic from metamorphic malware, and STIX from TAXII — and you'll know the right next step in any incident, from containment to recovery.

This is an independent, unofficial study guide. It is not authorized, sponsored, endorsed by, or affiliated with Cisco Systems, Inc. Cisco®, CCNP®, and all related names are trademarks of Cisco Systems, Inc., used for identification purposes only. The guide maps to the v1.2 version of the exam topics; always confirm the current exam version with the official certification provider.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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