The answer is Alternate Data Streams (ADS) and using the $Recycle.bin folder to hide data on an NTFS volume. ADS is a legitimate NTFS feature that allows multiple data streams to be attached to a single file, making hidden content invisible to standard directory listings and file size calculations. The $Recycle.bin folder, meanwhile, is a protected system directory where deleted files are stored; because it is hidden by default in normal browsing, an examiner must use forensic tools to inspect its contents, as simply dragging files there can conceal them from casual view. On the CHFI exam, this question tests your understanding of NTFS forensic artifacts and common anti-forensic techniques—attackers often exploit these two methods to evade detection during live analysis. A common trap is assuming only one method is valid, but the exam expects you to recognize both ADS and the Recycle Bin’s hidden folder structure as legitimate hiding places. Memory tip: think “ADS attaches, Recycle Bin conceals”—both exploit NTFS’s design to hide data in plain sight.
CHFI Storage Forensics and File System Analysis Practice Question
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.
Which TWO of the following are valid methods to hide data on an NTFS volume? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Storing data in the $Recycle.bin folder
Alternate Data Streams (ADS) allow data hiding in files, and the $Recycle.bin folder can be used to store deleted files that are not visible in normal browsing.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Storing data in the $Recycle.bin folder
Why this is correct
The $Recycle.bin folder can hide files by storing them in a special directory that is not easily visible.
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CHFI question in full detail.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related CHFI OSPF questions on adjacency and route selection.
Storage Forensics and File System Analysis — This question tests Storage Forensics and File System Analysis — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Storing data in the $Recycle.bin folder — Alternate Data Streams (ADS) allow data hiding in files, and the $Recycle.bin folder can be used to store deleted files that are not visible in normal browsing.
What should I do if I get this CHFI question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related CHFI OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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