Quick Answer
The correct answer is to verify the integrity of the backup files. Cryptographic hashes in the iTunes backup manifest.plist serve as a digital fingerprint for each file, ensuring that the data has not been altered or corrupted during the backup or restoration process. When an analyst extracts an iTunes backup, the system recomputes the hash of each file and compares it to the stored hash; if they match, the file is intact, but a mismatch signals tampering or corruption. On the CHFI exam, this concept tests your understanding of file integrity verification in forensic acquisitions, often appearing as a distractor where candidates might mistakenly think hashes are for encryption or authentication. A common trap is confusing integrity with confidentiality—hashes do not hide data, they detect changes. Memory tip: think of the manifest.plist as a "hash ledger" where each entry is a seal that, if broken, reveals evidence of foul play.
This CHFI practice question tests your understanding of mobile and malware forensics. 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.
An analyst extracts an iTunes backup from a Windows computer. The backup contains a file manifest.plist with cryptographic hashes. What is the primary purpose of these hashes in the backup process?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
To compress the backup data
Why wrong: Compression is a different process.
To verify the integrity of the backup files
Hashes ensure files haven't been altered.
To index the backup for faster searching
Why wrong: Not the purpose; indexing is separate.
To encrypt the backup files
Why wrong: Encryption uses keys, not hashes for encryption.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
To verify the integrity of the backup files
The cryptographic hashes in an iTunes backup's manifest.plist file are used to verify the integrity of the backup files. Each hash corresponds to a file in the backup, allowing the system to detect any corruption or tampering by comparing the stored hash against a newly computed hash of the file data.
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.
To compress the backup data
Why it's wrong here
Compression is a different process.
To verify the integrity of the backup files
Why this is correct
Hashes ensure files haven't been altered.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
To index the backup for faster searching
Why it's wrong here
Not the purpose; indexing is separate.
To encrypt the backup files
Why it's wrong here
Encryption uses keys, not hashes for encryption.
Common exam traps
EC-Council often tests the distinction between integrity verification (hashing) and confidentiality (encryption), so candidates may confuse the purpose of hashes with encryption or compression.
Detailed technical explanation
The manifest.plist file contains SHA-1 hashes of each file in the backup, stored in a dictionary keyed by the file's relative path. During restoration, iOS recalculates the hash of each file and compares it to the stored value; a mismatch indicates corruption or unauthorized modification. In forensic analysis, these hashes can also be used to identify known files (e.g., via hash databases) or to detect file-level changes between backups.
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
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FAQ
Mobile and Malware Forensics — This question tests Mobile and Malware Forensics — Read the scenario before looking for a memorised answer..
The correct answer is: To verify the integrity of the backup files — The cryptographic hashes in an iTunes backup's manifest.plist file are used to verify the integrity of the backup files. Each hash corresponds to a file in the backup, allowing the system to detect any corruption or tampering by comparing the stored hash against a newly computed hash of the file data.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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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