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 TWO of the following are considered forms of evidence under the rules of evidence? (Select two.)
Illegally obtained evidence
Why wrong: Illegally obtained evidence may be excluded.
Hearsay evidence
Why wrong: Hearsay is generally inadmissible unless an exception applies.
Circumstantial evidence
Circumstantial evidence requires inference but is still valid.
Opinion evidence
Why wrong: Opinion evidence is generally limited to expert witnesses.
Direct evidence
Direct evidence directly proves a fact without inference.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Circumstantial evidence
Circumstantial evidence is a recognized form of evidence under the rules of evidence because it allows a fact-finder to infer a fact from other established facts, even without direct witness testimony. In digital forensics, this is critical when reconstructing user activity from log files, file metadata, or network traffic patterns that indirectly prove an action occurred.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Illegally obtained evidence
Why it's wrong here
Illegally obtained evidence may be excluded.
Hearsay evidence
Why it's wrong here
Hearsay is generally inadmissible unless an exception applies.
Circumstantial evidence
Why this is correct
Circumstantial evidence requires inference but is still valid.
Related concept
Read the scenario before looking for a memorised answer.
Opinion evidence
Why it's wrong here
Opinion evidence is generally limited to expert witnesses.
Direct evidence
Why this is correct
Direct evidence directly proves a fact without inference.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
EC-Council often tests the distinction between admissibility and form of evidence, leading candidates to mistakenly select 'illegally obtained evidence' as a valid form because they confuse the concept of 'evidence' with 'admissible evidence'.
Detailed technical explanation
Under the Federal Rules of Evidence (FRE), direct evidence (Rule 401) proves a fact directly without inference (e.g., a video showing a suspect logging in), while circumstantial evidence requires the trier of fact to draw a reasonable inference (e.g., a timestamped log entry showing a user ID active at the time of an incident). In computer forensics, chain-of-custody documentation and hash values (e.g., MD5, SHA-1) are often used to authenticate both types of evidence, ensuring integrity under FRE 901.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Computer Forensics Fundamentals and Process — This question tests Computer Forensics Fundamentals and Process — Read the scenario before looking for a memorised answer..
The correct answer is: Circumstantial evidence — Circumstantial evidence is a recognized form of evidence under the rules of evidence because it allows a fact-finder to infer a fact from other established facts, even without direct witness testimony. In digital forensics, this is critical when reconstructing user activity from log files, file metadata, or network traffic patterns that indirectly prove an action occurred.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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.
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