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| Certification Vendor: | EC-COUNCIL |
|---|---|
| Exam Name: | Computer Hacking Forensic Investigator (CHFI-v11) |
| Exam Number: | 312-49v11 |
| Exam Price: | $650 USD |
| Exam Format: | Multiple Choice Questions (MCQ) |
| Related Certifications: | EC-Council Certified Security Analyst (ECSA) Certified Ethical Hacker (CEH) |
| Available Languages: | English |
| Exam Duration: | 240 minutes |
| Passing Score: | 60% - 85% (varies by exam form) |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 150 |
| Recommended Training: | Official CHFI Training |
| Exam Registration: | EC-Council Exam Registration |
| Sample Questions: | EC-COUNCIL 312-49v11 Sample Questions |
| Exam Way: | Online remote proctored or onsite at EC-Council authorized exam centers |
| Pre Condition: | Recommended: 2 years of work experience in IT security or related field; completion of official CHFI training is highly recommended |
| Official Syllabus URL: | https://www.eccouncil.org/train-certify/computer-hacking-forensic-investigator-chfi/ |
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496. Frage
What is the size value of a nibble?
Antwort: A
497. Frage
As a forensic investigator, you're looking into a case of industrial espionage at a manufacturing company. An insider is suspected of stealing proprietary CAD designs. The suspect ' s computer, which runs on a Windows OS, has been isolated. The company's IT team accidentally shut down the computer, which may have resulted in the loss of volatile data. In this context, what would be the best way to proceed with non-volatile data acquisition?
Antwort: A
Begründung:
Option D is the best answer because the system has already been shut down , meaning volatile evidence is likely lost and the remaining priority is to preserve and acquire non-volatile data in the most forensically sound manner possible. CHFI v11 emphasizes data acquisition methodology , choosing the best acquisition method , preserving evidence integrity, and using controlled procedures to avoid altering the source media. In this situation, removing the hard drive and attaching it to a forensic workstation is the safest and most standard approach for acquiring a reliable disk image.
Booting the suspect computer, whether with a forensic boot disk or the normal operating system, introduces risk because any boot process can change file system metadata, logs, temporary files, or other artifacts. Using the normal OS is especially unsafe. Network-based acquisition is also not appropriate here because the machine is already isolated and powered down.
A direct forensic acquisition from the removed drive minimizes unnecessary changes to the evidence source and aligns with CHFI principles of preservation, controlled handling, and repeatable imaging . Therefore, the correct next step for non-volatile data acquisition is to remove the drive and image it from a forensic workstation.
498. Frage
During a high-stakes malware investigation, your team discovered a suspicious device driver on a compromised server. Upon analyzing the driver's behavior in a sandboxed environment, you notice that it is frequently accessing low-level system resources that are not typically needed by legitimate drivers. You suspect that this driver might be used as a rootkit. What technique might the rootkit be employed to evade detection?
Antwort: C
Begründung:
Kernel patching allows a rootkit to modify core operating system functions at the kernel level, enabling it to hide processes, files, and activities from detection by security tools.
499. Frage
After examining a suspicious image obtained during an intelligence-gathering operation in Baltimore, Maryland, investigators suspect the presence of concealed data. Only the stego-object is available, and there is no knowledge of the original cover file or the steganography algorithm used. What steganalysis method should be applied in this situation?
Antwort: D
Begründung:
Stego-only analysis is used when investigators have only the suspected stego-object and do not have the original cover file, embedded message, or knowledge of the steganography algorithm.
This method focuses on detecting hidden data from the available suspicious file alone.
500. Frage
You have completed a forensic investigation case. You would like to destroy the data contained in various disks at the forensics lab due to sensitivity of the case. How would you permanently erase the data on the hard disk?
Antwort: B,C
Begründung:
To be effective with throwing the hard drive into the fire, the fire would have to be hot enough to melt the platters into molten metal, which requires an industrial furnance. This requires special facilities. Running powerful magnets over the disk, such as degaussing the disk, may destroy the data, but may also be ineffective. In some cases, the degaussing process for tape and disk may render the disk unusable for use again. (of course throwing the drives into a furnance also guarantee that as well). Formatting the disk multiple times with a low level disk utility is the best way to go, and still beable to re-use the disk for later projects. The keys are "multiple" and "low level". A low level format is typicall a slow, thorough, format that is a wipe. Multiple ?as opposed to once ?is recommended. There is a theory on "how many times", some schools say at least three times. The problem with this answer is that with newer drives, such as ATA and SCSI, low level formats can destroy the volumes as well, and some BIOS may actually ignore the LLF directives. Overwritting the disk with junk data would perform some form of wipe because the old data is wiped out, but still may be recoverd.
Note:
According to some websites:
Physical Methods that will not work to destroy data on a hard drive include:Throwing it in the water (this does not do much)Setting it on fire (the temperature is not going to be high enough at home)Throwing it out of the window. Hard drives can take quite a bit of G force. They are not heavy so the impact of the hard drive on the ground is not likely to destroy the platters.Drive over the hard drive. A car, or even a tank, driving over a hard drive will do nothing, any more than they would driving over a book. Unless the drive is actually flattened, the platters are not going to be destroyed
501. Frage
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