Quick Answer
The answer is the last sector of the disk. This location is chosen by the GPT specification to provide physical redundancy: if the primary GPT header at Logical Block Address (LBA) 1 is overwritten or corrupted, the backup copy stored at the final LBA allows forensic tools to reconstruct the partition table and verify its integrity. On the Computer Hacking Forensic Investigator (CHFI) exam, this concept tests your understanding of GPT’s fault-tolerant design versus the single-copy MBR scheme, often appearing in scenario-based questions about disk recovery or anti-forensic tampering. A common trap is confusing the backup header with the backup partition entry array, which immediately precedes the header, or assuming the backup is at a fixed offset like the end of the last partition. To remember: think of a book—the primary header is the first page, and the backup is the last page, ensuring the story survives even if the front cover is torn off.
This CHFI practice question tests your understanding of storage forensics and file system analysis. 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.
During a forensic investigation, an analyst recovers a hard drive that uses GPT partitioning. The analyst needs to locate the backup GPT header to verify partition table integrity. Where is the backup GPT header typically stored on the disk?
The first sector of the last partition
Why wrong: The backup GPT header is at the end of the disk, not tied to any partition.
The last sector of the disk
The backup GPT header is located at the last logical sector of the disk.
Sector 0 (the MBR sector)
Why wrong: Sector 0 contains the protective MBR.
Sector 1 (immediately after the protective MBR)
Why wrong: The primary GPT header is at LBA 1, not the backup.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The last sector of the disk
The backup GPT header is stored at the last sector of the disk to provide redundancy in case the primary GPT header is corrupted.
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.
The first sector of the last partition
Why it's wrong here
The backup GPT header is at the end of the disk, not tied to any partition.
The last sector of the disk
Why this is correct
The backup GPT header is located at the last logical sector of the disk.
Related concept
Read the scenario before looking for a memorised answer.
Sector 0 (the MBR sector)
Why it's wrong here
Sector 0 contains the protective MBR.
Sector 1 (immediately after the protective MBR)
Why it's wrong here
The primary GPT header is at LBA 1, not the backup.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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 CHFI exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Storage Forensics and File System Analysis — This question tests Storage Forensics and File System Analysis — Read the scenario before looking for a memorised answer..
The correct answer is: The last sector of the disk — The backup GPT header is stored at the last sector of the disk to provide redundancy in case the primary GPT header is corrupted.
Identify which CHFI exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 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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