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