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Prepare for the Eccouncil EC-Council Certified Incident Handler v3 exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Eccouncil 212-89 exam and achieve success.
The questions for 212-89 were last updated on Apr 21, 2026.
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An organization implemented an encoding technique to eradicate SQL injection
attacks. In this technique, if a user submits a request using single-quote and some
values, then the encoding technique will convert it into numeric digits and letters
ranging from a to f. This prevents the user request from performing SQL injection
attempt on the web application.
Identify the encoding technique used by the organization.
Hex encoding (also known as hexadecimal encoding) involves converting binary data into hexadecimal representation. In the context described, when a user submits a request with potentially malicious input (such as a single quote and other characters in an attempt to perform SQL injection), the encoding technique converts this input into a string of hexadecimal digits (ranging from 0 to 9 and A to F). This prevents the direct interpretation of the input as SQL commands by the database, thereby mitigating the risk of SQL injection attacks. This method is a form of input sanitization that helps ensure that user input cannot be used to manipulate database queries directly.
Aaron, a digital first responder, is dispatched to an R&D lab after a suspected insider data breach involving intellectual property theft. Upon entering the lab, he observes fingerprint smudges on a workstation keyboard, oily residue on a DVD near the printer, and an unplugged USB drive on the desk. He documents the position of each item, uses gloves and evidence tags, covers surfaces to prevent contamination, and restricts access to the area. Which best practice is Aaron demonstrating?
This scenario focuses on physical forensic evidence preservation, a key concept in the ECIH First Response module. Trace-level indicators such as fingerprints, residues, and physical media can provide attribution in insider investigations.
Option A is correct because Aaron's actions prevent contamination or destruction of physical trace evidence that may later link the incident to a specific individual. ECIH stresses that digital investigations often involve physical evidence, especially in insider cases.
Options B--D focus on digital evidence, which is not the primary concern described here.
Proper preservation of physical trace evidence supports attribution, legal proceedings, and disciplinary action, aligning fully with ECIH forensic readiness principles.
Attackers or insiders create a backdoor into a trusted network by installing an unsecured access point inside a firewall. They then use any software or hardware access point to perform an attack. Which of the following is this type of attack?
A rogue-access point attack occurs when attackers or insiders install an unsecured access point within a trusted network, typically behind a firewall, to create a backdoor. This allows them to bypass network security measures and perform various malicious activities undetected. The use of any software or hardware access point to gain unauthorized access and conduct an attack characterizes a rogue-access point attack. This contrasts with password-based attacks, malware attacks, and email infections, which involve different methodologies and objectives, such as stealing credentials, distributing malicious software, or propagating through email systems, respectively.
After experiencing a large-scale distributed denial-of-service (DDoS) attack that caused service outages, a national telecom provider recovered its web platform. The IH&R team must now implement post-recovery measures to enhance resilience against future DDoS attempts. Which action would be most effective?
This question focuses on post-incident recovery and resilience, a key ECIH concept. After restoring services, organizations must strengthen defenses to prevent recurrence.
Option B is correct because Content Delivery Networks (CDNs) distribute traffic and absorb volumetric attacks, while blackhole routing discards malicious traffic upstream. ECIH identifies these as industry-standard controls for DDoS resilience.
Options A, C, and D weaken security or increase attack surface and contradict ECIH guidance.
ECIH stresses that recovery is not complete until preventive measures are implemented. CDN deployment and upstream traffic control significantly improve availability during future attacks.
AlphaTech recently discovered signs of an advanced persistent threat (APT) in its infrastructure. The incident response team is trying to gather more information about the threat to form a comprehensive response strategy. While leveraging threat intelligence platforms, which of the following approaches would be most effective in gathering detailed and actionable insights about the APT?
ECIH emphasizes that advanced persistent threats require intelligence beyond static indicators. While IOCs are useful, they often change quickly and provide limited context.
Option B is correct because collaboration with industry peers enables sharing of tactics, techniques, and procedures (TTPs), which are more stable and actionable than IOCs. ECIH strongly promotes information sharing communities, ISACs, and trusted peer collaboration to improve situational awareness against APTs.
Options A, C, and D provide partial or outdated insights and lack operational depth.
Therefore, peer collaboration focused on attacker behavior is the most effective approach.
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