Linux Systems Interview Questions And Answers

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Sharpen your Linux OS Systems interview expertise with our handpicked 21 questions. Our questions cover a wide range of topics in Linux OS Systems to ensure you're well-prepared. Whether you're new to the field or have years of experience, these questions are designed to help you succeed. Get the free PDF download to access all 21 questions and excel in your Linux OS Systems interview. This comprehensive guide is essential for effective study and confidence building.

21 Linux OS Systems Questions and Answers:

Linux OS Systems Job Interview Questions Table of Contents:

Linux OS Systems Job Interview Questions and Answers

1 :: Tell me which file system has journaling capability?
a) Ext2
b) Ext4
c) Isofs
d) Procfs

b) Ext4

2 :: Which filesystem for CDROM is:
a) Ext2
b) Ext3
c) Isofs
d) Procfs

c) Isofs

3 :: Tell me which filesystem can be used to change certain kernel parameters at runtime using sysctl command?
a) Ext3
b) Sysfs
c) Ext4
d) Procfs

d) Procfs

4 :: Tell me which command is used to check filesystem usage in a system?
a) mount
b) df
c) du
d) dd

b) df

5 :: Explain ____ is a directory (which should exist), on which to mount the file system?
a) Root
b) Boot
c) Mount-point
d) Partition

c) Mount-point

6 :: Tell me which file contains the filesystems to be automatically mounted during boot?
a) /etc/mount
b) /etc/fstab
c) /etc/inittab
d) /etc/boot

b) /etc/fstab

7 :: Tell me which among the following allows fast file system recovery?
a) Ext2
b) Journaling
c) Caching
d) Sysfs

b) Journaling

8 :: Monolithic kernel:
a) is highly extensiblity
b) has less run time overhead
c) smaller than micro level
d) Suitable for real time system

b) has less run time overhead

9 :: Pick the run level to run Linux in multi user mode with networking?
a) 0
b) 3
c) 5
d) 6

b) 3

10 :: Tell me which command is used to mount file system read only.
a) mount -a
b) mount -v
c) mount -f
d) mount -r

d) mount -r

11 :: Runlevel system command is used for?
a) getting the present and previous runlevel of the system
b) setting the runlevel attribute of the system in the inittab file
c) can be used to restart or reboot the system
d) all of the above

d) all of the above

12 :: System call can be implemented using which assembly instruction(s) on x86 processors?
a) int 0×80
b) sysenter
c) both a & b
d) None

c) both a & b

13 :: Which of the following exec call is a system call?
a) execl
b) execlp
c) execve
d) execvp

c) execve

14 :: x86 architecture uses big endian or little endian addressing mechanism?

little-endian.

15 :: Daemon process is a?
a) group leader
b) session leader
c) orphan process
d) all the above

d) all the above

16 :: ______________ timer is decremented only when the process is executing:
a) ITIMER_REAL
b) ITIMER_VIRTUAL
c) ITIMER_PROF
d) None of the above

b) ITIMER_VIRTUAL

17 :: Sysconf(_SC_PAGE_SIZE) returns?
a) size of the page
b) max size of the page
c) min size of the page
d) PAGING ALLOWED OR NOT

a) size of the page

18 :: The terminal used by a Daemon process is:
a) any terminal
b) no terminal
b) root terminal
d) system console

b) no terminal

19 :: Section 2 of manpage describes:
a) Commands
b) System calls
c) Function calls
d) Drivers

b) System calls

20 :: Shared memory can be used for?
a) read only operations
b) append
c) read or read write operations
d) write only

c) read or read write operations

21 :: UNIX/Linux kernel is?
a) Monolithic
b) micro
c) Exo
d) nano

a) Monolithic

Linux Systems Interview Questions And Answers

Download Linux OS Systems Interview Questions and Answers PDF

21 Linux OS Systems Questions and Answers:

Linux OS Systems Job Interview Questions Table of Contents:

1 :: Tell me which file system has journaling capability? a) Ext2 b) Ext4 c) Isofs d) Procfs

2 :: Which filesystem for CDROM is: a) Ext2 b) Ext3 c) Isofs d) Procfs

3 :: Tell me which filesystem can be used to change certain kernel parameters at runtime using sysctl command? a) Ext3 b) Sysfs c) Ext4 d) Procfs

4 :: Tell me which command is used to check filesystem usage in a system? a) mount b) df c) du d) dd

5 :: Explain ____ is a directory (which should exist), on which to mount the file system? a) Root b) Boot c) Mount-point d) Partition

6 :: Tell me which file contains the filesystems to be automatically mounted during boot? a) /etc/mount b) /etc/fstab c) /etc/inittab d) /etc/boot

7 :: Tell me which among the following allows fast file system recovery? a) Ext2 b) Journaling c) Caching d) Sysfs

8 :: Monolithic kernel: a) is highly extensiblity b) has less run time overhead c) smaller than micro level d) Suitable for real time system

9 :: Pick the run level to run Linux in multi user mode with networking? a) 0 b) 3 c) 5 d) 6

10 :: Tell me which command is used to mount file system read only. a) mount -a b) mount -v c) mount -f d) mount -r

11 :: Runlevel system command is used for? a) getting the present and previous runlevel of the system b) setting the runlevel attribute of the system in the inittab file c) can be used to restart or reboot the system d) all of the above

12 :: System call can be implemented using which assembly instruction(s) on x86 processors? a) int 0×80 b) sysenter c) both a & b d) None

13 :: Which of the following exec call is a system call? a) execl b) execlp c) execve d) execvp