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Filesystem Recovery Course - File Storage Basics Test
How does deduplication work?
a filesystem monitors that exactly one copy of each file metadata block is stored
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 compresses data before writing it to the disk
How is a record storing file metadata and pointers to file content called in Linux?
short form directory
directory
indirect block table
inode
MFT record
group descriptor
What is a sparse file?
a file containing zeros which are not actually stored on the disk
a file consisting of more than one fragment
a file containing more than two identical blocks
a file containing a compressed block
What is a minimum unit of disk space a filesystem operates with?
cluster
chunk
stripe
sector
Check optional properties for a file
data and time of file creation
file extension
content
access rights
size
name
What is carving?
discovering files by searching the disk by file header signatures
discovering files by searching the disk by file names
discovering files by searching the disk by file hashes
A filesystem, if possible, tries to allocate clusters sequentially
false
true
Check filesystem features which facilitate data recovery
compression
fragmentation
journaling
checksums
copy-on-write
deduplication
What is an alternative name for cluster?
block
chunk
sector
stripe
Check what makes carving impossible
fragmentation
copy-on-write
deduplication
sparse storage
checksums
compression
journaling
Next lesson - File Metadata
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