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Filesystem Recovery Course - File Storage Basics Test
Check optional properties for a file
content
size
data and time of file creation
access rights
name
file extension
What is carving?
discovering files by searching the disk by file hashes
discovering files by searching the disk by file header signatures
discovering files by searching the disk by file names
Check filesystem features which facilitate data recovery
copy-on-write
checksums
deduplication
compression
journaling
fragmentation
What is fragmentation?
when a file is stored in several non-contiguous fragments
when two files have identical fragments
A filesystem, if possible, tries to allocate clusters sequentially
true
false
Check properties a file required to have
content
name
size
access rights
data and time of file creation
What is a compressed file?
a file containing fragments stored on disk in compressed form
a file containing more than two identical blocks
a file containing zeros which are not actually stored on the disk
a file consisting of more than one fragment
How does deduplication work?
a filesystem monitors that no more than two copies of each data block is stored
a filesystem monitors that exactly one copy of each data block is stored
a filesystem monitors that exactly one copy of each file metadata block is stored
a filesystem compresses data before writing it to the disk
What is an alternative name for cluster?
chunk
stripe
sector
block
What is a minimum unit of disk space a physical device operates with?
sector
chunk
cluster
stripe
Next lesson - File Metadata
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