Important AbbreviationsOS Mass-Storage Structures
WORM stands for:
write only, read mandatory
write once, read many times
write only once, read multiple
none of the mentioned
write once, read many times
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RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.A. 3
B. 4
C. 5
D. 6
Using swap space significantly _________ system performance.
A. increases
B. decreases
C. maintains
D. does not affect
The _______ program initializes all aspects of the system, from CPU registers to device controllers and the contents of main memory, and then starts the operating system.
A. main
B. bootloader
C. bootstrap
D. rom
An unrecoverable error is known as _________
A. hard error
B. tough error
C. soft error
D. none of the mentioned
A process is moved to wait queue when I/O request is made with ____________
A. non-blocking I/O
B. blocking I/O
C. asynchronous I/O
D. synchronous I/O
Virtual memory uses disk space as an extension of _________
A. secondary storage
B. main memory
C. tertiary storage
D. none of the mentioned
The scheme used in the above question is known as _______ or ________
A. sector sparing & forwarding
B. forwarding & sector utilization
C. backwarding & forwarding
D. sector utilization & backwarding
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