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NAS Recovery Course - NAS Recovery Preparations Test
Check based on what you can estimate the state of physical disks in a NAS
sounds coming from the disks
the words of a client
the S.M.A.R.T. attributes
What helps you determine a sector size for disks partitioned with GPT?
EXT i-node
GPT database
EFI PART signature
main MBR
Choose the advantage of disk clones compared to disk images
reliability
convenience in storage and archival
speed
Check what you should ask a client about a NAS configuration
whether a client used disks of the same model in a NAS
whether a client ever replaced disks
whether a client changed an array type
whether a client ever added disks
The sum of partition sizes should be close to the size of a physical disk with both MBR and GPT disks
false
true
Check those S.M.A.R.T. attributes pointing to the bad condition of a disk
G-sense error rate
offline uncorrectable sector count
start/stop count
current pending sector count
reallocated sectors count
Choose the advantage of disk images compared to disk clones
speed
convenience in storage and archival
reliability
Why they do not recommend storing several disk image files on the same disk when recovering data?
the disk may degrade due to the frequent read requests
recovery will be too slow
The information about a NAS coming from a client is often unreliable
no
yes, but it's better than nothing
yes
When recovering a NAS, it is always better to create disk image files rather than disk clones
false
true
Next lesson - Partitions in NASes
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