Question $51(1$ point$)$

Which of the following commands may be used to shut down your system the fastest?

Question $51$ options:

shutdown$-$h$+15$

halt

poweroff

shutdown$-$h$+1$

Question $52(1$ point$)$

Which firewall$-$cmd option ensures that the configuration is written to boot files?

Question $52$ options:

$--$permanent

$--$boottimeconfig

$--$init

$--$add

Question $53(1$ point$)$

Which iptables action drops packets and sends an error to the originating host?

Question $53$ options:

ERROR

DROP

REFECT

BAD

Question $54(1$ point$)$

Which of the following directories is least likely to be created as a separate filesystem during Linux installation?

Question $54$ options:

$/$etc

$/$usr

$/$var

$/$tmp

Question $55(1$ point$)$

Which of the following commands would run the $"$ps$"$ command with a priority of $6($lower than the default$)?$

Question $55$ options:

nice$-$n $6$ ps

nice$-$n$-6$ ps

renice$--6$ ps

renice$-6$ ps

Question $56(1$ point$)$

What utility can be used to test Apache performance?

Question $56$ options:

apachectl

ab

testparm

httpd

Question $57(1$ point$)$

Which command is used within a pipe to send output to a file and across a pipe?

Question $57$ options:

filter

wc

tee

&

Question $58(1$ point$)$

What command may be used to list open ports on your computer?

Question $58$ options:

lids localhost

nmap$-$sT localhost

tcpdump eml

netstat$-$i localhost

Question $59(1$ point$)$

What $2$ logfiles can you check for unauthorized logins$?($Choose $2)$

Question $59$ options:

$/$var$/$log$/$blogin

$/$var$/$log$/$wtmp

$/$var$/$log$/$secure

$/$var$/$log$/$messages

Question $60(1$ point$)$

Which of the following commands would uninstall a package and remove any configuration files?

Question $60$ options:

dpkg$-$r packagename

dpkg$-$P packagename

dpkg$-$u packagename

dpkg$-$e packagename

Short Answer Questions

Question $61(1$ point$)$

What would happen if we tried to mount a floppy device on the $/$dev directory?

Question $61$ options:

Question $62(1$ point$)$

Which device refers to a secondary master IDE hard drive?

Question $62$ options:

Question $63(1$ point$)$

Which command would we type to view the contents of the file "cert" in our present directory one page at a time?

Question $63$ options:

Question $64(2$ points$)$

What two lines could you add $/$ change within $/$etc$/$selinux$/$config to ensure that SELinux is enabled with complete protection?

Question $64$ options:

Question $65(1$ point$)$

Which command would we type in to find out more about the syntax and usage of the ps command?

Question $65$ options:

Question $66(3$ points$)$

What commands can be used to perform the following actions?

Ensure that the partition $/$dev$/$sda$3$ is used by the LVM

Add the Physical Volume created in $1.$ to the volume group called VG$00$

Extend the existing logical volume $/$dev$/$vg$00/$data to use all the existing space on $/$dev$/$sda$3($lTB$)$

Question $66$ options:

Question $67(2$ points$)$

You are the user ghi and you are currently residing in the $/$temps$/$vivre directory shown below:

Without changing directories, how would you copy a file you just created called unstick to the game directory using relative pathnames?

Without changing directories, and assuming that you have permission, how would you move all the files from the ghi subdirectory to the temps directory using relative pathnames?

Question $67$ options:

Question $68(6$ points$)$

Fill in below which actions the appropriate users can take on each file?

File $1$:

Directory: drwx$---$r$-$x

File: $-$rw$-$rwxr$-$x

Owner $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

Group $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

Other $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

File $2$:

Directory $2$: dr$-$xr$-$xr$-$x

File$2$: $-$rwxr$-$xr$-$x

Owner $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

Group $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

Other $\_\_$modify $\_\_$delete $\_\_$read $\_\_$execute

Question $68$ options:

Question $69(3$ points$)$

With a umask set to $044$:

new files will have permissions set to$?$

new directories will have permissions set to$?$

old files will have permissions set to$?$

Question $69$ options:

Question $70(4$ points$)$

Briefly describe two of the following terms in relation to the history of UNIX and Linux:

Ken Thompson & Dennis Ritchie

GNU

MINIX

OSS

Question $70$ options:

Question $71(2$ points$)$

Which command would we use to make the file letter$2(-$rwxr$-$x$---)$ in the current directory readable by the user and group only. Do both symbolic mode and absolute mode commands!

Question $71$ option