Quick Answer
The answer is authenticity and admissibility, as these are the two essential components of the rules of evidence for digital evidence to be admissible in court. Authenticity requires the proponent to prove that the digital evidence is exactly what it claims to be and has not been altered, typically established through cryptographic hash verification like SHA-256 and a documented chain of custody. Admissibility, meanwhile, is the overarching legal standard that evidence must meet to be considered by the court, and it hinges on authenticity, relevance, and reliability. On the Computer Hacking Forensic Investigator CHFI exam, this concept tests your understanding of how forensic examiners must preserve evidence integrity to satisfy legal rules of evidence, often appearing in scenario-based questions where a broken chain of custody or missing hash values renders evidence inadmissible. A common trap is confusing authenticity with integrity—remember that authenticity is the legal requirement, while integrity is the technical proof. Memory tip: "Authenticity proves it's real; admissibility lets it in."
This CHFI practice question tests your understanding of computer forensics fundamentals and process. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 essential components of the rules of evidence for digital evidence to be admissible in court? (Choose two.)
Authenticity
Evidence must be genuine and unaltered.
Originality
Why wrong: Duplicates are often allowed under best evidence rule.
Expediency
Why wrong: Speed is not a rule.
Admissibility
Evidence must be admissible under legal rules.
Complexity
Why wrong: Complexity is not a rule of evidence.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Authenticity
Authenticity is a core component of the rules of evidence because it requires the proponent to show that the digital evidence is what it claims to be and has not been tampered with. For digital evidence, this is typically established through cryptographic hash verification (e.g., SHA-256) and a documented chain of custody. Without authenticity, the court cannot rely on the evidence's integrity, making it inadmissible.
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.
Authenticity
Why this is correct
Evidence must be genuine and unaltered.
Related concept
Read the scenario before looking for a memorised answer.
Originality
Why it's wrong here
Duplicates are often allowed under best evidence rule.
Expediency
Why it's wrong here
Speed is not a rule.
Admissibility
Why this is correct
Evidence must be admissible under legal rules.
Related concept
Read the scenario before looking for a memorised answer.
Complexity
Why it's wrong here
Complexity is not a rule of evidence.
Common exam traps
EC-Council often tests the misconception that 'originality' is required for digital evidence, but the rule actually allows authenticated duplicates (e.g., forensic images) as long as the hash matches the original, making 'Originality' a distractor for those who confuse physical evidence rules with digital evidence rules.
Detailed technical explanation
Under the hood, authenticity for digital evidence is often proven by generating a cryptographic hash (e.g., SHA-256) of the original media at acquisition and comparing it to the hash of the evidence presented in court. A mismatch indicates tampering, while a match, combined with a verifiable chain of custody (documenting every person who handled the evidence, with timestamps and signatures), satisfies the authenticity requirement. In a real-world scenario, a forensic examiner might use tools like FTK Imager or EnCase to create a write-blocked image and compute a hash, which is then logged in a report to meet the Daubert standard for scientific evidence.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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: Authenticity — Authenticity is a core component of the rules of evidence because it requires the proponent to show that the digital evidence is what it claims to be and has not been tampered with. For digital evidence, this is typically established through cryptographic hash verification (e.g., SHA-256) and a documented chain of custody. Without authenticity, the court cannot rely on the evidence's integrity, making it inadmissible.
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.
About these practice questions
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A forensic investigator uses the 'dd' command to create a forensic image. The original drive has a SHA-256 hash of a1b2c3... and the image produces the same hash. Which rule of evidence does this satisfy?
mediumWhy B: Authenticity means evidence is what it purports to be. Matching hashes confirms the image is an exact copy, thus authentic.
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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