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LINUX ESSENTIALS - PRACTICE PRACTICE EXAM (PASSED!!!)
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LINUX ESSENTIALS - PRACTICE PRACTICE EXAM (PASSED!!!)
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LINUX ESSENTIALS - PRACTICEPRACTICE EXAM (PASSED!!!)
If6you6wanted6to6disable6a6second6network6interface6in6Linux,6what6command6would6you6
enter6at6the6shell?
ifdown6eth0
ifdown6eth1
ifconfig6disable6eth1
ifdown6-6ans--ifdown6eth1
You6have6been6editing6a6configuration6file6using6vi.6You6realize6that6you've6made6many6
mistakes6and6need6to6quit6without6saving6the6changes6so6that6you6can6start6over.6Which6
command6will6allow6you6to6do6this?
:q
:q!
:exit
:s6-6ans--:q!6("colon6Q6Bang!")
What6directory6would6the6~6character6represent?
Another6user's6home6directory.
The6home6directory6of6our6currently6logged6in6user.
Take6us6to6the6home6directory6of6the6root6user.
The6/var6directory.6-6ans--The6home6directory6of6our6currently6logged6in6user.
What6is6the6default6shell6for6most6Linux6distributions?
csh
,bash
sh
zsh6-6ans--bash
You6need6to6troubleshoot6a6hardware6issue.6Which6command6would6let6you6view6the6ker
nel6ring6buffer6to6see6what6hardware6was6just6added?
cat6/var/log/boot.log
tail6lastlog
dmsg6|6less
head6/var/log/messages6-6ans--dmsg6|6less6(driver6messages)6"dmsg6pipe6less"
Which6of6the6following6sections6give6a6brief6review6of6the6syntax6used6for6a6particular6co
mmand6or6utility6within6a6man6page?
REVIEW
SYNOPSIS
SYNTAX
DESCRIPTION6-6ans--SYNOPSIS
In6which6directory6could6you6add6files6so6that6a6newly6created6user6will6automatically6hav
e6them6when6they6first6log6in?
/etc/skel
/etc/profile.d
/etc/default
/etc/.skel6-6ans--/etc/skel6(correct?)
Which6of6the6following6provides6binary6files6containing6prewritten6code6elements6or6interf
aces6that6programmers6can6call6when6writing6Linux6programs?
Libraries
Bash6shell6profiles
, Kernel6modules
The6kernel6-6ans--Libraries
You6are6running6the6ping6command6to6see6if6a6particular6host6is6up.6How6would6you6spec
ify6to6the6ping6command6that6only6five6packets6get6sent6to6the6remote6host?
ping6--count656host.example.com
ping6-c656host.example.com
ping656host.example.com
ping6-n656host.example.com6-6ans--ping6-c656host.example.com6(-
c6=6count,6number6of6times6can6vary)
You6need6to6verify6that6a6remote6host6with6a6hostname6of6dns2.linuxacademy.com6is6up6
and6running.6Which6of6the6following6commands6would6you6enter6at6the6shell6prompt6to6d
o6this?
finger6dns2.linuxacademy.com
netstat6-a6dns2.linuxacademy.com
netstat6-s6dns2.linuxacademy.com
ping6dns2.linuxacademy.com6-6ans--ping6dns2.linuxacademy.com
While6using6vi6to6edit6a6file6in6command6mode,6you6try6to6use6the6BACKSPACE6key6to6d
elete6a6word,6but6nothing6happens.6What's6wrong?
You6need6to6use6CTRL-BACKSPACE
You6need6to6reboot6your6computer.
You6need6to6switch6to6normal6mode.
You6have6to6switch6to6insert6mode.6-6ans--You6have6to6switch6to6insert6mode.
Which6command6would6uncompress6the6contents6of6the6file6'important.bz2'?
gunzip6(for6.gz6only)
tar6(this6is6not6a6zip-type6file)
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