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OS Mass-Storage Structures
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OS Mass-Storage Structures
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OS Mass-Storage Structures
RAID level ________ refers to disk arrays with striping at the level of blocks, but without any redundancy.
0
1
2
3
Author:
rikazzz
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OS Mass-Storage Structures
What is the host controller?
controller built at the end of each disk
controller at the computer end of the bus
all of the mentioned
none of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
The header and trailer of a sector contain information used by the disk controller such as _________ and _________
main section & disk identifier
error correcting codes (ECC) & sector number
sector number & main section
disk identifier & sector number
Author:
rikazzz
Comment
OS Mass-Storage Structures
The data structure for a sector typically contains ____________
header
data area
trailer
all of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
If a disk fails in RAID level ___________ rebuilding lost data is easiest.
1
2
3
4
Data can be copied from another disk in raid level 1, for other raid levels all other disks have to be accessed.
Author:
rikazzz
Comment
OS Mass-Storage Structures
Optical disks ______ magnetism.
use
do not use
may use
none of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
What is a magneto-optic disk?
primary storage
secondary storage
removable disk
none of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
In _______ information is recorded magnetically on platters.
magnetic disks
electrical disks
assemblies
cylinders
Author:
rikazzz
Comment
OS Mass-Storage Structures
Which one of the following connects high-speed high-bandwidth device to memory subsystem and CPU.
Expansion bus
PCI bus
SCSI bus
None of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
In the ______ algorithm, the disk arm starts at one end of the disk and moves toward the other end, servicing requests till the other end of the disk. At the other end, the direction is reversed and servicing continues.
LOOK
SCAN
C-SCAN
C-LOOK
Author:
rikazzz
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