Top 550+ Solved Operating System (OS) MCQ Questions Answer
Q. An asynchronous call
a. returns immediately, without waiting for the i/o to complete
b. does not return immediately and waits for the i/o to complete
c. consumes a lot of time
d. is too slow
Q. Buffering is done to
a. cope with device speed mismatch
b. cope with device transfer size mismatch
c. maintain copy semantics
d. all of the mentioned
Q. Caching is spooling.
a. same as
b. not the same as
c. all of the mentioned
d. none of the mentioned
Q. Caching
a. holds a copy of the data
b. is fast memory
c. holds the only copy of the data
d. holds output for a device
Q. Spooling
a. holds a copy of the data
b. is fast memory
c. holds the only copy of the data
d. holds output for a device
Q. The kernel data structures include
a. process table
b. open file table
c. close file table
d. all of the mentioned
Q. If the number of cycles spent busy – waiting is not excessive, then
a. interrupt driven i/o is more efficient than programmed i/o
b. programmed i/o is more efficient than interrupt driven i/o
c. both programmed and interrupt driven i/o are equally efficient
d. none of the mentioned
Q. A is a full duplex connection between a device driver and a user level process.
a. bus
b. i/o operation
c. stream
d. flow
Q. The first linux kernel which supports the SMP hardware?
a. linux 0.1
b. linux 1.0
c. linux 1.2
d. linux 2.0
Q. Which one of the following linux file system does not support journaling feature?
a. ext2
b. ext3
c. ext4
d. none of the mentioned
Q. Which binary format is supported by linux?
a. out
b. elf
c. both a.out and elf
d. none of the mentioned
Q. Which one of the following bootloader is not used by linux?
a. grub
b. lilo
c. ntldr
d. none of the mentioned
Q. The first process launched by the linux kernel is
a. init process
b. zombie process
c. batch process
d. boot process
Q. Which desktop environment is not used in any linux distribution?
a. gnome
b. kde
c. unity
d. none of the mentioned