The correct answer is that digital evidence must be authentic and its integrity must be verifiable. This is because legal standards like Federal Rule of Evidence 901 and the Daubert standard require proof that evidence is exactly what it claims to be and has not been altered from its original state. Authentication is typically demonstrated through cryptographic hash values—such as MD5, SHA-1, or SHA-256—computed at collection and again before court presentation; matching hashes confirm integrity. On the CHFI exam, this concept tests your understanding of the chain of custody and the foundational admissibility requirements, often appearing in scenario-based questions where a hash mismatch or missing verification makes evidence inadmissible. A common trap is confusing collection legality with integrity—even legally seized data can be thrown out if its hash changes. Memory tip: think “Hash to Admit”—if the hash doesn’t match, the evidence doesn’t get in.
CHFI Computer Forensics Fundamentals and Process Practice Question
This CHFI practice question tests your understanding of computer forensics fundamentals and process. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which of the following is a key requirement for digital evidence to be considered admissible in court?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The evidence must be authentic and its integrity must be verifiable
Digital evidence must be authentic and its integrity verifiable to meet the legal standard of admissibility, as established by rules such as the Federal Rules of Evidence (FRE 901) and the Daubert standard. Authentication requires proving that the evidence is what it claims to be, typically through a hash value (e.g., MD5, SHA-1, or SHA-256) computed before and after analysis to ensure no tampering occurred. Without verifiable integrity, the evidence could be challenged as altered, making it inadmissible regardless of how it was collected.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The evidence must be authentic and its integrity must be verifiable
Why this is correct
Authenticity and integrity are fundamental to admissibility.
Related concept
Read the scenario before looking for a memorised answer.
✗
The evidence must have been collected by a law enforcement officer
Why it's wrong here
Qualified forensic examiners, not necessarily law enforcement, can collect evidence.
✗
The evidence must be stored on a write-blocked device
Why it's wrong here
Write blocking is a best practice but not a legal requirement for admissibility.
✗
The evidence must be encrypted to ensure confidentiality
Why it's wrong here
Encryption is not a requirement for admissibility.
Common exam traps
Common exam trap: answer the scenario, not the keyword
EC-Council often tests the misconception that procedural steps like write-blocking or law enforcement involvement are legal requirements, when in fact the core admissibility criterion is the ability to prove authenticity and integrity through verifiable means like hash values and chain of custody documentation.
Detailed technical explanation
How to think about this question
Under the hood, authentication of digital evidence often relies on cryptographic hash functions (e.g., SHA-256 per NIST SP 800-86) to create a digital fingerprint; any change in the evidence produces a different hash, flagging tampering. In a real-world scenario, a forensic examiner might use tools like FTK Imager or EnCase to compute a hash at acquisition and again during analysis, documenting the chain of custody with timestamps and signatures to satisfy FRE 901. A subtle behavior is that hash collisions (though extremely rare for SHA-256) could theoretically undermine integrity claims, but courts accept the statistical improbability as sufficient proof.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CHFI exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CHFI question in full detail.
Computer Forensics Fundamentals and Process — This question tests Computer Forensics Fundamentals and Process — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The evidence must be authentic and its integrity must be verifiable — Digital evidence must be authentic and its integrity verifiable to meet the legal standard of admissibility, as established by rules such as the Federal Rules of Evidence (FRE 901) and the Daubert standard. Authentication requires proving that the evidence is what it claims to be, typically through a hash value (e.g., MD5, SHA-1, or SHA-256) computed before and after analysis to ensure no tampering occurred. Without verifiable integrity, the evidence could be challenged as altered, making it inadmissible regardless of how it was collected.
What should I do if I get this CHFI question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This CHFI practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CHFI exam.
Question Discussion
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