How to mount a file system temporarily?
mount -t
mount -R
mount
mount -Rt
How to remove a queued file from the printer queue?
lpqrm
lprm
jobs -r
lpc -rm
/etc/fstab cannot be altered when the system is running runlevel 6
True
False
fork() and exec() are essentially doing the same job
It is possible to process return value of system()
To execute system() one should have root privilege
lpc command is used to
Add printer and queues
Add modem & flash drive
Add printer alone
Invalid command
What is the difference between select() & poll()?
select() and poll() have no differences
poll() is event driven while select() is not
select() is event driven while poll() is not
None
What is /proc/kcore process?
The process file name of init
The proc file name of RAM
Invalid file
The core dump file
Error in loading shared libraries: lib xxx..so. x: cannot open shared object file: No such file or directory
Resolve by update PATH variable
Resolve by setting SHELLPATH variable
Resolve by updating LD_LIBRARY_PATH
Resolve by setting LIBRARY_PATH variable