The correct answer is that evidence must be authentic and its integrity must be verifiable, as this directly upholds the foundational rules of evidence in digital forensics. Authenticity ensures the data is exactly what it purports to be, while verifiable integrity relies on cryptographic hashing (e.g., SHA-256) to prove no tampering occurred during collection, analysis, or preservation. On the Computer Hacking Forensic Investigator CHFI exam, this principle tests your grasp of the legal admissibility chain, often appearing alongside concepts like lawful acquisition and relevance under FRE 401. A common trap is confusing integrity with mere access control—remember, integrity is about proving the evidence hasn’t changed, not just who touched it. For a memory tip, think “AIV”: Authenticity, Integrity, and Verifiability form the triple foundation that keeps digital evidence from being excluded in court.
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 THREE of the following correctly describe the rules of evidence as applied to digital forensics? (Select three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Evidence must be relevant to the case and obtained through lawful means
Option A is correct because evidence must be relevant to the case and obtained through lawful means. In digital forensics, this aligns with the legal principle of relevance under the Federal Rules of Evidence (FRE 401) and the requirement that evidence be obtained via a lawful search warrant or consent, otherwise it may be suppressed under the exclusionary rule (e.g., Fourth Amendment violations).
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.
✓
Evidence must be relevant to the case and obtained through lawful means
Why this is correct
Relevance and lawful acquisition are fundamental.
Related concept
Read the scenario before looking for a memorised answer.
✗
Circumstantial evidence is not allowed in digital forensics cases
Why it's wrong here
Circumstantial evidence is permissible and can be used to infer facts.
✗
Hearsay evidence is always inadmissible in court
Why it's wrong here
Hearsay has exceptions; computer-generated records may be admissible under business records exception.
✓
The evidence must be complete and not misleading
Why this is correct
Completeness ensures the evidence tells the whole story.
Related concept
Read the scenario before looking for a memorised answer.
✓
Evidence must be authentic and its integrity must be verifiable
Why this is correct
Authentication is required to show evidence is what it claims to be.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that hearsay evidence is always inadmissible, but in digital forensics, server logs and automated records frequently qualify under hearsay exceptions, making Option C a trap for those who do not know the exceptions.
Detailed technical explanation
How to think about this question
The rules of evidence in digital forensics are grounded in the Federal Rules of Evidence and case law. For example, authenticity (Option E) is verified through cryptographic hashing (e.g., SHA-256) and chain of custody documentation, ensuring the evidence has not been altered. Completeness (Option D) requires that forensic images (e.g., using dd or FTK Imager) capture all data, including unallocated space, to avoid misleading conclusions. Hearsay exceptions for digital evidence often rely on the business records exception (FRE 803(6)), where logs are considered reliable if created in the regular course of business.
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: Evidence must be relevant to the case and obtained through lawful means — Option A is correct because evidence must be relevant to the case and obtained through lawful means. In digital forensics, this aligns with the legal principle of relevance under the Federal Rules of Evidence (FRE 401) and the requirement that evidence be obtained via a lawful search warrant or consent, otherwise it may be suppressed under the exclusionary rule (e.g., Fourth Amendment violations).
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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Question Discussion
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