Module 3
What's the maximum file size when writing data to a FAT32 drive? 2 GB 3 GB 4 GB 6 GB
2GB
By what percentage can lossless compression reduce image file size? 15% 50% 30% 25%
50%
What are two concerns when acquiring data from a RAID server? Data transfer speeds and type of RAID Type of RAID and antivirus software Amount of data storage needed and type of RAID Split RAID and Redundant RAID
Amount of data storage needed and type of RAID
With remote acquisitions, what problems should you be aware of? Data transfer speeds Access permissions over the network Antivirus, antispyware, and firewall programs The password of the remote computer's user
Antivirus, antispyware, and firewall programs
What older Microsoft disk compression tool eliminates only slack disk space between files? PKZip WinZip WinRAR DriveSpace
DriveSpace
Which forensics tools can connect to a suspect's remote computer and run surreptitiously? ddfldd and ProDiscover Incident Response EnCase Enterprise and ProDiscover Incident Response dd and ddfldd dd and EnCase Enterprise
EnCase Enterprise and ProDiscover Incident Response
Name two commercial tools that can make a forensic sector-by-sector copy of a drive to a larger drive. dd and Expert Witness dd and EnCase X-Ways Forensics and dd EnCase and X-Ways Forensics
EnCase and X-Ways Forensics
Of all the proprietary formats, which one is the unofficial standard? Expert Witness AFF Uncompress dd Segmented dd
Expert Witness
FTK Imager can acquire data in a drive's host protected area. True False
False
If the computer has an encrypted drive, a live acquisition is done if the password or passphrase is not available. True False
False
Similar to Linux, Windows also has built-in hashing algorithm tools for digital forensics. True False
False
Slower data transfer speeds and dealing with minor data errors are two disadvantages of the raw format True False
False
Unlike RAID 0, RAID 3 stripes tracks across all disks that make up one volume. True False
False
When determining which data acquisition method to use you should not consider how long the acquisition will take. True False
False
What does a sparse acquisition collect for an investigation? Only specific files of interest to the case Fragments of unallocated data in addition to the logical allocated data Only the logical allocated data Only fragments of unallocated data
Fragments of unallocated data in addition to the logical allocated data
What term refers to Linux ISO images that can be burned to a CD or DVD? Forensic Linux Linux in a Box Linux Live CDs ISO CDs
Linux Live CDs
What type of acquisition is done if the computer has an encrypted drive and the password or passphrase is available? Local Live Passive Static
Live
What type of acquisition is used for most remote acquisitions? Sparse Live Hot Static
Live
What does Autopsy use to validate an image? RC4 MD5 AFD AFF
MD5
Which type of format acquisition leaves the investigator unable to share an image between different vendors' computer forensics analysis tools? Raw AFD AFF Proprietary
Proprietary
In addition to RAID 0, what type of RAID configuration is available for Windows XP, 2000, and NT servers and workstations? RAID 4 RAID 5 RAID 1 RAID 2
RAID 1
Which RAID configuration offers the greatest access speed and most robust data recovery capability? RAID 16 RAID 0 RAID 15 RAID 10
RAID 15
Name the three formats for digital forensics data acquisitions. Raw, AICIS, and AFF EnCase format, Raw, and dd Raw format, proprietary formats, and AFF dd, Raw, and AFF
Raw format, proprietary formats, and AFF
If your time is limited, what type of acquisition data copy method should you consider? Sparse Disk-to-disk Lossless Disk-to-image
Sparse
Why is it a good practice to make two images of a suspect drive in a critical investigation? To speed up the process To have one compressed and one uncompressed copy To ensure at least one good copy of the forensically collected data in case of any failures None of the above
To ensure at least one good copy of the forensically collected data in case of any failures
A hashing algorithm is a program designed to create a binary or hexadecimal number that represents the uniqueness of a data set, file, or entire disk. True False
True
A logical acquisition collects only specific files of interest to the case. True False
True
A separate manual validation is recommended for all raw acquisitions at the time of analysis. True False
True
Acquisitions of RAID drives can be challenging and frustrating for digital forensics examiners because of how RAID systems are designed, configured, and sized. True False
True
Commonly, proprietary format acquisition files can compress the acquisition data and segment acquisition output files into smaller volumes. True False
True
FTK Imager requires that you use a device such as a USB dongle for licensing. True False
True
In Autopsy and many other forensics tools raw format image files don't contain metadata. True False
True
In Linux, the fdisk -l command lists the suspect drive as /dev/hda1. So, the following dcfldd is command correct. dcfldd if=image_file.img of=/dev/hda1 True False
True
Some acquisition tools don't copy data in the host protected area (HPA) of a disk drive. True False
True
The main goal of a static acquisition is the preservation of digital evidence. True False
True
The most common and time-consuming technique for preserving evidence is creating a duplicate copy of your disk-to-image file. True False
True
There's no simple method for getting an image of a RAID server's disks. True False
True
With newer Linux kernel distributions, USB devices are automatically mounted, which can alter data on it. True False
True
What's the most critical aspect of digital evidence? Compression Redundancy Contingency Validation
Validation
What did Microsoft add to its newer operating systems that makes performing static acquisitions more difficult? Backup utilities Whole disk encryption Recovery wizards NTFS
Whole disk encryption
What command works similarly to the dd command but has many features designed for computer forensics acquisitions? raw dcfldd bitcopy man
dcfldd
What option is used with the dcfldd command to designate a hashing algorithm of md5, sha1, sha256, sha384, or sha512? md5sum hashlog checksum hash
hash
In the Linux dcfldd command, which three options are used for validating data? hash, hashlog, and vf h, hl, and vf hash, log, and hashlog vf, of, and vv
hash, hashlog, and vf
What command displays pages from the online help manual for information on Linux commands and their options? cmd inst hlp man
man
In addition to md5sum, which hashing algorithm utility is included with current distributions of Linux? SHAKE sha1sum sha386sum md1deep
sha1sum
