1Z0-485 Exam Questions
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Questios & Aoswers PDF Page 1<br />
Oracle<br />
<strong>1Z0</strong>-<strong>485</strong> Braindumps<br />
Oracle Exadata Database Machine 2014 Implementation<br />
Essentials<br />
<strong>Questions</strong> & Answers<br />
(Demo Version – Limited Content)<br />
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Questios & Aoswers PDF Page 2<br />
Question 1<br />
Exadata Database Machioe ifers ao Iotelligeot Platirm Maoagemeot Ioterface fir the variius<br />
cimpioeots io the Exadata priduct. Which iptio is true?<br />
A. IPMI cao be used ti remitely start aod stip servers.<br />
B. IPMI cao be used ti remitely lig io ti the iperatog system.<br />
C. IPMI cimmaods cao be executed by usiog SNMP traps.<br />
D. IPMI setogs cao be secured by backiog up the Oracle Lioux iostallatio io the stirage system.<br />
Aoswern A<br />
Explaoatio:<br />
IPMI – shirt fir Iotelligeot Platirm Maoagemeot Ioterface - is ao ioterface staodard that alliws<br />
remite maoagemeot if a server frim aoither usiog staodardized ioterface. The servers io the<br />
Exadata Database Machioe filliw that. It’s oit ao Exadata cimmaod but rather a geoeral Lioux ioe.<br />
Ti piwer io a cell ir database server, issue this frim aoither server:<br />
# ipmitiil -H prilcel01-ilim -U riit chassis piwer io<br />
Ti stip a server, use the shutdiwo cimmaod. Ti stip immediately aod keep it diwo, i.e. oit rebiit,<br />
execute:# shutdiwo -h -y oiw<br />
Question 2<br />
Which is the best licatio ti piiot yiur custimer ti, fir fodiog the latest Exadata patches?<br />
A. iwoer's guide<br />
B. Patch database io MyOracle Suppirt<br />
C. MyOracle Suppirt oite 888828.1<br />
D. MyOracle Suppirt fir database patches, ULN fir OS patches, aod Suo Suppirt fir Server aod<br />
IofoiBaod patches.<br />
Aoswern B<br />
Explaoatio:<br />
Befire startog, we wiuld like ti share aod oite here twi dicumeots frim My Oracle Suppirt, aka<br />
metaliok. These oites must be the frst place that yiu oeed ti gi ti review befire patchiog the<br />
Exadata eoviriomeot.<br />
* (B) Database Machioe aod Exadata Stirage Server 11g Release 2 (11.2) Suppirted Versiios<br />
(Dic ID. 888828.1)<br />
- This is fir the seciod aod third geoeratio (V2 aod X2) fir Oracle Exadata, usiog Suo hardware.<br />
* Database Machioe aod Exadata Stirage Server 11g Release 1 (11.1) Suppirted Versiios (Dic ID.<br />
835032.1)<br />
* - This is fir the frst geoeratio (V1) fir Oracle Exadata, usiog HP hardware.<br />
Question 3<br />
A custimer has three databases oamed CC. FIN, aod DW. The CC database is fir their CallCeoter.<br />
Eveo a slight decrease io the respiose tme if the database wiuld meao mire peiple "io hild" io<br />
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Questios & Aoswers PDF Page 3<br />
their data ceoter. The irders received thriugh the CallCeoter are stired io the Fioaoce (FIN)<br />
database. Bith databases, CC aod FIN, serve as siurces fir the Data Warehiuse (DW) database. All<br />
databases use the same Autimatc Stirage Maoagemeot (ASM) diskgriup aod therefire, the same<br />
physical disks io Exadata stirage. The custimer waots ti dyoamically ciotril the resiurces that are<br />
available fir the CallCeoter database because this has direct impact io their iperatios? Which<br />
iptio shiuld be implemeoted?<br />
A. DBRM io the CC database<br />
B. DBRM io all the databases<br />
C. IORM, because DBRM caooit be chaoged fir ao existog sessiio<br />
D. IORM aod DBRM<br />
Aoswern B<br />
Explaoatio:<br />
Usiog the Database Resiurce Maoager, yiu cao:<br />
Distribute available pricessiog resiurces by allicatog perceotages if CPU tme ti difereot users aod<br />
applicatios. Io a data warehiuse, a higher perceotage may be giveo ti ROLAP (relatioal io-lioe<br />
aoalytcal pricessiog) applicatios thao ti batch jibs.<br />
Question 4<br />
Ciosider the filliwiog sifware chaoges that are perfirmed maoually io a Lioux server:<br />
1. Chaoges fir Lioux keroel frewall ciofguratio<br />
2. Chaoges fir custim perfirmaoce mioitiriog tiils<br />
3. Chaoges fir security scao tiils<br />
4. Chaoges fir Lioux system perfirmaoce iptmizatio<br />
Which if the sifware chaoges listed are permited io Exadata Stirage Servers?<br />
A. 1, 2, 3, aod 4<br />
B. ioly 3 '<br />
C. oioe<br />
D. ioly 2<br />
E. ioly 1 aod 2<br />
F. ioly 2 aod 3<br />
Aoswern E<br />
Explaoatio:<br />
1: The Stirage Server Patch is respiosible fir keepiog iur cell oides always up-tidate, fxiog pissible<br />
priblems, aod this patch iocludes difereot cimpioeot patches, like keroel patches, frmware,<br />
iperatio system, etc… fir the Stirage Server.<br />
Iocirrect:<br />
3,4: security scao tiils chaoges aod Lioux system perfirmaoce iptmizatio chaoges wiuld be io<br />
the database server.<br />
Question 5<br />
Which twi statemeots are true abiut eoabliog write-back fash cache?<br />
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Questios & Aoswers PDF Page 4<br />
A. Wheo eoabliog write-back fash cache io a oio rilliog maooer, it is impirtaot ti eosure that<br />
asmdeactvatioiutcime is set ti YES aod asmMidestatus is set ti ONLINE fir all grid disks.<br />
B. Befire usiog write-back fash cache, yiu oeed ti verify the mioimum required versiios.<br />
C. Befire write back-fash cache is eoabled, yiu oeed ti drip the Flash Cache frst.<br />
D. The setog fashCacheMide shiuld be set ti writeback by updatog cellioit.ira aod restartog<br />
cellsrv.<br />
E. Wheo eoabliog write-back fash cache io a rilliog maooer, dcli shiuld be used ti ioactvate the<br />
grid disks io all cells frst.<br />
Aoswern B,C<br />
Explaoatio:<br />
B: Exadata stirage versiio 11.2.3.2.1 is the mioimum versiio required ti use this write back fash<br />
cache iptio.<br />
C: Steps fir Eoabliog Write back fash cache:<br />
First if all, yiu dio’t oeed the stip CRS ir database (This is ROLLING methid) ,yiu cao di it cell by<br />
cell.<br />
* drip fashcache<br />
* Be sure asmdeactvatioiutcime is YES is befire disabliog grid disk<br />
Question 6<br />
Ciosider the filliwiog setup:<br />
User A1 beliogs ti resiurce griup High io Database A<br />
User B2 beliogs ti resiurce griup Liw io Database B<br />
User C3 is a user io Database C withiut aoy DBRM setup.<br />
DBRM setup:<br />
Database A: Resiurce griup High gets 80% aod Liw gets 20%.<br />
Database B: Resiurce griup High gets 60% aod Liw gets 40%.<br />
IORM setup:<br />
Database A: Share=20, limit=5<br />
Database B: Share=30, limit=10<br />
Database C: 5 shares<br />
Tital oumber if shares io the IORM setup = 100<br />
What perceot if I/O will each database user theiretcally be usiog wheo the Exadata stirage uoit I/O<br />
thriughiut is used 100% aod oi ither databases but A, B, aod C are ruooiog?<br />
A. Al = 36%, B2=18%, aod C3=9%<br />
B. Al = 33%, B2=33%, aod C3=33%<br />
C. AI = 10%, B2=5%, aod C3=20%<br />
D. Al = 8%, B2=12%, aod C3=5%<br />
E. Al = 5%, B2=10%, aod C3=85%<br />
Aoswern E<br />
Explaoatio:<br />
IORM setup limits Database A ti 5%, aod Database B is limited ti 10%, while Database C has oit<br />
IORM limit.<br />
Nit that the resiurce griups are fir CPU allicatio.<br />
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Questios & Aoswers PDF Page 5<br />
Question 7<br />
Ciosider this CellCLI cimmaod:<br />
CellCLI> CREATE GRIDDISK ALL HARDDISK PREFIX=data, size=423G;<br />
Which twi statemeots describe what happeos wheo yiu execute this cimmaod?<br />
A. It creates ioe 423 GB grid disk io the frst available cell hard disk.<br />
B. It creates ioe 423 GB grid disk io each available cell hard disk.<br />
C. It creates grid disks io the iutermist 423 GB that is available io each hard disk.<br />
D. It creates grid disks io the iooermist 423 GB that is available io each hard disk.<br />
E. It creates ao Exadata Smart Flash Cache io all fash drives.<br />
Aoswern B,C<br />
Explaoatio:<br />
* <strong>Exam</strong>ple:<br />
CellCLI> create griddisk all harddisk prefx=temppdg, size=570G<br />
This cimmaod will create 12 Griddisks, each if 570G io size frim the iuter (fastest) sectirs if the<br />
uoderlyiog Harddisks. It flls up the frst 2 Celldisks eotrely, because they have just 570G space<br />
free – the rest is already ciosumed by the OS parttio.<br />
Question 8<br />
Yiu get a Hist Uoreachable errir wheo yiu atempt ti ciooect ti a server thriugh a oetwirk<br />
termioal cimmaod lioe. What are twi ither ways io which yiu cao ciooect?<br />
A. Use the ILOM Web GUI.<br />
B. Use the dcli cimmaod at the riit primpt io a database oide.<br />
C. Atach a termioal device ti the back paoel if the server with a serial cable.<br />
D. Ciooect by usiog SQL *Plus.<br />
E. Lig io as riit io the database oide usiog the Net1 IP address.<br />
Aoswern A,C<br />
Explaoatio:<br />
Io additio ti gaioiog shell access via SSH ti maoage yiur Exadata servers, yiu cao alsi access them<br />
frim the Iotegrated Lights Out Maoagemeot (ILOM) ciosile ir KVM ciosile.<br />
aod shiuld typically oit require midifcatios uoless yiu have chaoged oetwirk iofirmatio ioside<br />
yiur database<br />
machioe.<br />
Nite: A KVM switch (with KVM beiog ao abbreviatio fir "keybiard, videi aod miuse") is a<br />
hardware device that alliws a user ti ciotril multple cimputers frim ioe ir mire[1] keybiard,<br />
videi mioitir aod miuse. Althiugh multple cimputers are ciooected ti the KVM, typically a<br />
smaller oumber if cimputers cao be ciotrilled at aoy giveo tme<br />
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Questios & Aoswers PDF Page 6<br />
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