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100+ Free Mile2 CDFE Practice Questions

Pass your Mile2 Certified Digital Forensics Examiner (CDFE) exam on the first try — instant access, no signup required.

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Which type of evidence is considered the most reliable form of evidence in digital forensics, because it speaks for itself without requiring interpretation by a witness?

A
B
C
D
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Key Facts: Mile2 CDFE Exam

100 questions

Exam Length

Mile2

70%

Passing Score

Mile2

2 hours

Time Limit

Mile2

3 years

Validity Period

Mile2

17 modules

Course Coverage

Mile2

ISO/IEC 27037

Evidence Standard

ISO

The Mile2 CDFE is a 100-question, 2-hour online exam requiring 70% to pass. It covers 17 modules from forensic methodology and legal frameworks through Windows artifacts, file system internals, mobile forensics, and expert report writing.

Sample Mile2 CDFE Practice Questions

Try these sample questions to test your Mile2 CDFE exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which principle ensures that digital evidence collected at a crime scene is not altered during acquisition or analysis?
A.Integrity preservation
B.Non-repudiation
C.Data normalization
D.Access control
Explanation: Integrity preservation is the foundational principle of digital forensics ensuring that evidence is not modified during seizure, acquisition, or examination. Forensic examiners use write blockers and cryptographic hashing (MD5, SHA-256) to verify that data remains unchanged from the original source.
2A forensic examiner calculates an MD5 hash of a disk image immediately after acquisition and again after analysis. The hashes differ. What does this indicate?
A.The disk image was modified after acquisition
B.The original drive was encrypted
C.The hash algorithm is outdated
D.The chain of custody form was not filled out
Explanation: If the MD5 hash of an acquired image differs after analysis, it indicates the image file was modified—whether intentionally or through examiner error. Cryptographic hashing is used at acquisition time to create a baseline; any change to the bit stream will produce a different hash value, invalidating the evidence for court purposes.
3Which legal authority grants law enforcement the right to search and seize digital evidence from a suspect's computer?
A.Search warrant
B.Subpoena duces tecum
C.Grand jury indictment
D.Consent decree
Explanation: A search warrant is issued by a judge based on probable cause and specifically authorizes law enforcement to search a defined location and seize evidence, including digital devices. It is the primary legal instrument protecting Fourth Amendment rights while enabling lawful evidence collection.
4What is the primary purpose of maintaining a chain of custody in a digital forensics investigation?
A.To track and document every person who handled the evidence
B.To speed up the acquisition process
C.To encrypt evidence during transport
D.To convert evidence into a court-admissible format
Explanation: Chain of custody is a chronological documentation trail that records every individual who handled, transferred, or accessed evidence from the moment of collection through presentation in court. It is essential to prove that evidence has not been tampered with or contaminated, ensuring admissibility.
5Which device must be used when creating a forensic image of a hard drive to prevent any data from being written back to the source media?
A.Write blocker
B.RAID controller
C.USB hub
D.Network switch
Explanation: A write blocker (hardware or software) intercepts write commands sent to a storage device, allowing the examiner to read data without altering the original evidence. It is a mandatory tool in forensic acquisition to preserve evidence integrity and ensure the original media remains unchanged.
6The FAT32 file system stores file metadata using which structure?
A.Master File Table (MFT)
B.Inode table
C.Directory entry and File Allocation Table
D.Volume Boot Record only
Explanation: FAT32 uses directory entries to store file metadata (name, size, timestamps, starting cluster) and a File Allocation Table (FAT) to track cluster chains. The FAT is a linked-list map showing which clusters belong to each file and which clusters are free or bad.
7In NTFS, which file stores metadata for every file and directory on the volume?
A.$MFT (Master File Table)
B.$Boot
C.$Bitmap
D.$LogFile
Explanation: The $MFT (Master File Table) is the core NTFS metadata structure. Every file and directory on an NTFS volume has at least one MFT record, which stores attributes such as file name, timestamps, permissions, data runs (pointers to clusters), and alternate data streams.
8When a file is deleted on an NTFS volume, what happens to the data clusters the file occupied?
A.The MFT record is marked as unallocated but the data remains in the clusters
B.The clusters are immediately overwritten with zeros
C.The file is moved to a recycle bin at the hardware level
D.The clusters are encrypted and flagged as bad sectors
Explanation: When a file is deleted in NTFS, the corresponding MFT record is marked as free/unallocated and the cluster bitmap entries for the file's clusters are cleared, but the actual data in those clusters is not zeroed out. The data remains recoverable until the OS allocates those clusters to a new file.
9Which NTFS feature allows a single file to contain multiple independent data streams associated with the same filename?
A.Alternate data streams (ADS)
B.Volume shadow copies
C.Symbolic links
D.Sparse file allocation
Explanation: NTFS Alternate Data Streams (ADS) allow additional data streams to be attached to a file beyond the default $DATA stream. Attackers exploit ADS to hide malware or data within a file because standard directory listings do not show the additional streams, making them a forensically significant artifact.
10In the ext4 file system, which structure stores file metadata such as owner, permissions, timestamps, and data block pointers?
A.Directory entry
B.Superblock
C.Inode
D.Block group descriptor
Explanation: In ext4 (and other ext-family file systems), the inode stores all file metadata except the filename. Each inode holds the file type, permissions, owner UID/GID, size, timestamps (atime, mtime, ctime, crtime in ext4), and pointers to data blocks. The filename is stored in the directory entry, which references the inode number.

About the Mile2 CDFE Exam

The Mile2 Certified Digital Forensics Examiner (CDFE) validates skills in seizing, preserving, acquiring, and analyzing digital evidence across Windows, Linux, macOS, and mobile environments. It is aligned to ISO/IEC 27037 and NIST SP 800-101.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70% (70/100)

Exam Fee

Varies by package (see mile2.com for current pricing) (Mile2 Cybersecurity Institute)

Mile2 CDFE Exam Content Outline

~12%

Forensics Overview & Legal

Cybercrime law, search authority, chain of custody, evidence admissibility, and forensic standards

~15%

Evidence Collection & Handling

Acquisition types, write blockers, Faraday bags, evidence packaging, and integrity verification

~13%

Investigation Process

CFFTPM methodology, order of volatility, disk imaging, NSRL filtering, and QA/QC standards

~20%

Windows Forensics

Registry hives, NTFS artifacts, prefetch, LNK files, ShellBags, event logs, and USB artifacts

~12%

File Systems (FAT/NTFS/ext)

FAT32, NTFS MFT attributes, ext4 inodes, slack space, MBR/GPT, and file signatures

~12%

Recovering Deleted Data & Artifacts

File carving, Volatility memory forensics, EXIF analysis, steganography detection, and SSD TRIM

~10%

Email & Network Forensics

SMTP analysis, email headers, browser artifacts, DNS forensics, and packet analysis

~9%

Mobile Forensics

Android/iOS acquisition, Cellebrite UFED, SQLite databases, and NIST 800-101

~7%

Report Writing & Testimony

Forensic report structure, objectivity, expert witness standards, and Daubert requirements

How to Pass the Mile2 CDFE Exam

What You Need to Know

  • Passing score: 70% (70/100)
  • Exam length: 100 questions
  • Time limit: 2 hours
  • Exam fee: Varies by package (see mile2.com for current pricing)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Mile2 CDFE Study Tips from Top Performers

1Focus on Windows forensics artifacts (Registry, NTFS, event logs, prefetch, LNK, ShellBags) — they represent the largest domain at ~20%
2Memorize key NTFS files: $MFT, $UsnJrnl, $LogFile, $Bitmap, $Boot and what each records
3Understand the difference between $STANDARD_INFORMATION and $FILE_NAME timestamps — critical for detecting anti-forensics
4Know the order of volatility (RFC 3227): RAM before disk before archive media
5Practice reading email headers bottom-to-top to trace the originating server's IP address
6Learn key Volatility plugins: pslist (processes), malfind (injection), netscan (connections), hivelist (registry)

Frequently Asked Questions

What is the Mile2 CDFE exam format?

The CDFE exam consists of 100 multiple-choice questions with a 2-hour time limit. A minimum passing score of 70% (70 correct answers) is required. The exam is delivered online through Mile2's Learning Management System and is available in standard and DoD 8140-approved proctored formats.

What are the prerequisites for the Mile2 CDFE?

There are no formal prerequisites for the CDFE. It is recommended for professionals with foundational IT or cybersecurity experience, including law enforcement digital forensics investigators, incident responders, IS auditors, and IT managers. Mile2 offers a 5-day instructor-led course (40 CEUs) as the primary preparation path.

What topics are covered on the CDFE exam?

The CDFE covers nine major domains: forensics overview and legal principles, evidence collection and handling, the investigation process, Windows forensics (Registry, NTFS artifacts, event logs), file systems (FAT/NTFS/ext4), recovering deleted data and artifacts, email and network forensics, mobile forensics, and report writing and expert testimony.

How long is the CDFE certification valid?

The Mile2 CDFE certification is valid for 3 years. Certified professionals must complete 20 continuing education units (CEUs) annually to maintain the credential. Mile2 offers various continuing education options through its training catalog.

Is the Mile2 CDFE DoD 8140 approved?

Yes, Mile2 offers a DoD 8140-approved variant of the CDFE certification. This makes it suitable for government and defense contractor personnel who require DoD-recognized credentials for specific cybersecurity work roles.

What tools are covered in the CDFE curriculum?

The CDFE curriculum covers a range of industry-standard forensic tools including Cellebrite UFED and Physical Analyzer (mobile), Magnet AXIOM, Oxygen Forensic Detective, FTK Imager (disk imaging), Autopsy and The Sleuth Kit (disk analysis), Volatility (memory forensics), and dd (Linux imaging command). The course also addresses MSAB XRY and Paraben E3 for mobile forensics.