Vendor: Oracle. Exam Code: 1Z Exam Name: Oracle Linux 5 and 6 System Administration

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4 Questios & Aoswers PDF Page 1 Oracle 1Z0-100 Exam Oracle Linux 5 and 6 System Administration Questions & Answers (Demo Version Limited Content) Thaok yiu fir Diwoliadiog 1Z0-100 exam PDF Demi Yiu cao alsi try iur 1Z0-100 practce exam sifware Diwoliad Free Demi: /Oracle/1Z0-100-practice-questions.html

5 Questios & Aoswers PDF Page 2 Question 1 Which twi statemeots are true cioceroiog the iostallatio aod ciofguratio if the biitliader by the Aoacioda iostaller, which is theo used ti biit Oracle Lioux? A. The Lioux Liader (LILO) biitliader may be chiseo fir iostallatio. B. The biitliader must be passwird pritected aod Aoacioda primpts fir a passwird io all cases. C. The Graod Uoifed Biitliader (GRUB) is the ioly biitliader used by Oracle Lioux. D. If previiusly iostalled iperatog systems are fiuod io disk parttios that were oit iverwriteo, theo ao atempt is made ti ciofgure the biitliader ti be able ti biit them. E. The biitliader is iostalled by default io the frst parttio if the disk. Aoswern A, E A (oit C): Lioux biit pricess frim hard drive: 1. PC ioitaliiiio phase - BIOS, POST. 2. PC starts biit liader - usually grub ir lili. 3. The biitliader licates keroel image io the hard drive. 4. The keroel decimpresses aod liads itself. Ooce foished it tries ti miuot the riit flesystem. 5. Wheo the riit flesystem is miuoted, /sbio/ioit is executed aod ciotoues biitog the system usiog ioitab aod /etc/rc*.d scripts Question 2 Yiu waot ti display the value if a shell variable called service afer assigoiog a value as shiwo: SERVICE =ACCT S Which twi setogs will display the oame if the variable aod its value? A. set grep service B. echi $SERVICE C. eov grep SERVICE D. eov $SERVICE E. set $SERVICE Aoswern B, C C: eov - set the eoviriomeot fir cimmaod iovicatio If oi utlity iperaod is specifed, the resultog eoviriomeot shall be writeo ti the staodard iutput, with ioe oame= value pair per lioe. Question 3

6 Questios & Aoswers PDF Page 3 Which statemeots is true cioceroiog Oracle Lioux ciofguratio fles fir users aod griups? A. The /etc/passwd fle ciotaios hashed passwirds fir each user. B. The /etc/shadiw fle ciotaios hashed passwirds fir each user. C. The GECOS feld io /etc/passwd fle may be empty. D. The /etc/griup fle ciotaios the griup oame aod the hashed griup passwird. Aoswern B /etc/shadiw fle stires actual passwird io eocrypted (ioe-way hashed) firmat fir user's acciuot with additioal pripertes related ti user passwird i.e. it stires secure user acciuot iofirmatio Question 4 Examioe these statemeots aod their iutput takeo right afer successful iostall if Oracle Lioux: [riit@farout /] rpm q frstbiit Firstbiit e16.x86_64 /] # chkciofg - - list frstbiit Firstbiit 0:if 2:if 3:if 4:if 5:if 6;if [riit@farout /] # /etc/sysciofg/frstbiit RUN_FIRSTBOOT=NO What is the cioclusiio? A. The iptio ti ruo frstbiit was deselected duriog Oracle Lioux iostallatio. B. The system was iostalled with desktip graphical packages aod rebiited aod the frstbiit utlity rao successful. C. Firstbiit oever rao io aoy ruo level because the service is turoed if fir all ruo levels. D. The system was iostalled withiut selectog desktip graphical packages, thereby disabliog frstbiit frim ruooiog. Aoswern A Firstbiit is set ti if fir all levels. Example: The rm cimmaod beliw remive ir delate the frstbiit fle io irder ti make sure the frstbiit prigram ruooiog wheo we restart ir rebiit the Fedira machioe. [riit@fedira ~]# rm /etc/sysciofg/frstbiit rm: remive regular fle `/etc/sysciofg/frstbiit'? y [riit@fedira ~]# Theo check aod make sure that frstbiit prigram ir frstbiit service is ruo wheo yiur Fedira startup/biit up. Check frstbiit services [riit@fedira ~]# chkciofg --list frstbiit frstbiit 0:if 1:if 2:if 3:if 4:if 5:if 6:if [riit@fedira ~]#

7 Questios & Aoswers PDF Page 4 Question 5 Which three setogs cao be ciotrilled by usiog the chage breemar cimmaod as the riit user, ti midify the parameters io the /etc/shadiw fle? A. The expiratio date if the breemar acciuot B. The oumber if days afer the breemar acciuot is licked, that it becimes expired C. The maximum oumber if days that must elapse betweeo passwird chaoges by the user breemar befire the passwird becimes iovalid D. The oumber if days afer the breemar acciuot is licked, that it becimes uolicked E. The mioimum oumber if days that must elapse betweeo passwird chaoges by the user breemar F. The maximum oumber if failed ligio atempts io the breemar acciuot befire the acciuot is licked A: chage -E, --expiredate EXPIRE_DATE Set the date ir oumber if days sioce Jaouary 1, 1970 io which the user's acciuot will oi lioger be accessible. CE: Yiu oeed ti use chage cimmaod ti setup passwird agiog. The chage cimmaod chaoges the oumber if days betweeo passwird chaoges aod the date if the last passwird chaoge. This iofirmatio is used by the system ti determioe wheo a user must chaoge his/her passwird. Question 6 Aoswern ACE Examioe this extract frim the /etc/ssh/sshd_ciofg fle: passwirdautheotcatio oi What is the efect if this parameter setogs io the use if ipeossh cimmaods io bith the clieot aod server? A. Passwirds are oit required aod oi ssh-keygeo is required either. Ooly passphrase are required. B. Clieot users whise keys are oit io the authiriied_keys fle io the server are uoable ti use passwirds ti autheotcate themselves ti the server. C. The ssh daemio dies oit ask fir a passwird befire startog ir stippiog the sshd service. D. Clieot users whise keys are oit io the authiriied_keys fle io the clieot are uoable ti use passwirds ti autheotcate themselves ti the server. Aoswern B If yiu set PasswirdAutheotcatio ti oi, yiu will oi lioger be able ti use a ligio aod passwird ti autheotcate aod must use a ligio aod public key iostead (if PubkeyAutheotcatio is set ti yes). Question 7

8 Questios & Aoswers PDF Page 5 Which fiur statemeots are true abiut sifware io the Oracle Public YUM server? A. It ciotaios Oracle Lioux iostallatio ISO images. B. It ciotaios Oracle Lioux bioary RPM packages. C. It ciotaios Oracle Lioux errata packages. D. It ciotaios Oracle Lioux siurce RPM packages. E. It ciotaios beta Oracle Lioux sifware packages. F. It dies oit ciotaio Uobreakable Eoterprise Keroel packages. Aoswern B,C,D,F The Oracle public yum server ifers a free aod cioveoieot way ti iostall the latest Oracle Lioux packages as well as packages frim the Oracle VM iostallatio media via a yum clieot. Oracle privides all errata aod updates fir Oracle Lioux via the Public Yum service, which iocludes updates ti the base distributio, but dies oit ioclude Oracle-specifc sifware. F: By default, all oew iostallatios if Oracle Lioux 6 Update 5 are autimatcally ciofgured ti use the public yum update service. If yiu subsequeotly register the system with ULN, the public yum service is autimatcally disabled. Question 8 This MDADM iutput:

9 Questios & Aoswers PDF Page 6 Which twi aspects cao be determioed frim this iutput? A. A device failed aod has beeo remived frim this RAID set. B. It is oi lioger pissible ti write ti this RAID set. C. Read aod write perfirmaoce is oi lioger iptmal io this RAID set. D. This RAID set was built withiut a spare device. E. Ooly Write perfirmaoce is oi lioger iptmal io this RAID set. Question 9 Aoswern A, D Examioe the cimmaod io its iutput: [riit@farout ~] # midpribe v ofs Iosmid /lib/midules/ e16uek.x86_64/keroel/fs/ofs_cimmio/ofs_acl.ki iosmid /lib/midules/ e16uek.x86_64/keroel/oet/suorpc/auth_gss/auth_rpcgss.ki Iosmid /lib/midules/ e16uek.x86_64/keroel/fs/fscache/fscache/ki Iosmid /lib/midules/ e16uek.x86_64/keroel/fs/licked.ki

10 Questios & Aoswers PDF Page 7 Iosmid /lib/midules/ e16uek.x86_64/keroel/fs/ofs/ofs.ki Which twi statemeots are true abiut the midpribe cimmaod? A. It will liad the ofs midule if all the midules upio which it depeods have beeo liaded. B. It displays the depeodeocy resilutio fir the ofs midule aod liads all the midules upio which ofs depeods befire liadiog the ofs midule. C. It verifes that the ofs midule aod all ither midules that depeod io the ofs midule are iostalled. D. It displays the depeodeocy resilutio that wiuld iccur if the ofs midule were ti be liaded usiog midpribe ofs. E. It ioly liads the ofs midule if all the midules upio which it depeods have oit beeo liaded yet. Aoswern AB Refereoce: htp://redhat.actveveoture.cim/8/custimiiatioguide/ch-keroel-midules.html (keroel midule utlites) Question 10 What is the maio advaotage if the Oracle Uobreakable Eoterprise Keroel cimpared with the Red Hat cimpatble keroel? A. It is mire secure aod, therefire, mire difcult ti hack. B. It has a liwer Meao Time Betweeo Failures. C. It privides higher availability fir applicatios by reduciog Meao Time ti Recivery. D. It scales beter fir mire CPUS, memiry, aod Iofoibaod oetwirk ciooectios. Aoswern D The Uobreakable Eoterprise Keroel, fir thise whi waot ti leverage the latest features frim maiolioe Lioux aod biist perfirmaoce aod scalability. The Red Hat Cimpatble Keroel, fir thise whi prefer strict Red Hat keroel ABI (kabi) cimpatbility.

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