RAID 1 is disk striping. no mirroring no parity. Minimum 2 disks required. If any
One disk fails all the data get lost.
RAID 5 is disk striping with parity. Minimum 3 disks required. if anyone disk fails
Data is safe, if two fails data get lost.
The file /proc/locks displays the file currently locked by the a) kernel b) user c) superuser d) none of the mentioned
/bin/dmesg picks the messages from a) /proc/kmesg b) /sbin/klogd c) both (a) and (b) d) none of the mentioned
Which file contains the boot options passed to the kernel? a) /proc/cmdline b) /proc/root c) /proc/boot d) none of the mentioned
Which one of the following file contains the environment for the process? a) /proc/[PID]/environ b) /proc/[PID]/env c) /proc/[PID]/path d) none of the mentioned
What is /bin/sh? a) bourne shell b) hard or symbolic link to the real shell command c) bash shell d) both (b) and (c)
Which one of the directory does not contain binary files? a) /bin b) /sbin c) /etc d) none of the mentioned
Which one of the following package management command-line tools is the odd one out?
Indicate the right option to search for anything not a letter or number a) grep '^[a-zA-Z0-9]' b) grep '[^a-zA-Z0-9]' c) grep '[a-zA-Z0-9]' d) None of the above in Search Pattern
One of the entry of /etc/passwd file is shown below
user1x11112222google/home/user1/bin/bash
Which among the following will print userid and home dir in the following pattern "user1/home/user1"?
a) awk `{print $1 "" $6}` /etc/passwd
b) awk `{print $1 "" $7}` /etc/passwd
c) awk `{print $2 "" $6}` /etc/passwd
d) awk `{print $2 "" $7}` /etc/passwdWhat is the command that can print lines of first file matching with second file? a) printline b) cmp c) com d) comm
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