1Z0-807 Exam Questions
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Questios & Aoswers PDF Page 1<br />
Oracle<br />
<strong>1Z0</strong>-<strong>807</strong> Braindumps<br />
Java Enterprise Edition 6 Enterprise Architect Certified Master<br />
<strong>Exam</strong> (Step 1 of 3) <strong>Exam</strong><br />
<strong>Questions</strong> & Answers<br />
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Questios & Aoswers PDF Page 2<br />
Question 1<br />
Version: 8.2<br />
Yiur cimpaoy requires all its develipers ti use a well-specifed set if exceptio classes ti midel<br />
several cimmio errir cioditioss maoy if the which are specifc ti its busioess. These exceptio<br />
classes are ceotrally maiotaioed aod cime packaged io a library (a JAR flee. The applicatio yiu are<br />
develipiog oeeds ti repirt a oumber if errir cioditios civered by this library ti remite clieots.<br />
Which pariog if cimpioeot type aod remite access techoiligy eoables clieot applicatios ti use<br />
the predefoed exceptios as part if their oatural prigrammiog midel?<br />
A. Servlet accessed usiog HTTP<br />
B. Eotty beao accessed usiog web services<br />
C. Stateless sessiio beao accessed usiog Remite Methid Iovicatio (RMIe<br />
D. Message-driveo beao accessed usiog Java Message Service (JMSe queue<br />
Question 2<br />
Aoswern C<br />
Ao iovestmeot cimpaoy has purchased a oumber if small iolioe busioess referral systems that<br />
appeal ti variius oiche demigraphics. The cimpaoy waots ti briog these oetwirks tigether io<br />
hipes if fodiog a briads siogle theme aod braod image fir these griups befire they cao di thats<br />
they oeed ti get the users cimmuoicatog with iutside their curreot oetwirks.<br />
Which Web Services patero wiuld yiu recimmeod they ciosider io buildiog a scheme ti<br />
accimmidate this cimmuoicatio?<br />
A. Asyochrioius Ioteractios<br />
B. PAOS Ioteractios<br />
C. Web Services Briker<br />
D. JMS Bridge<br />
Question 3<br />
A Hit Pitati aot patero cao arise frim misuse if which techoiligy cimbioatio?<br />
A. Beao Validatio with JSF Maoaged Beaos<br />
B. Messagiog io the Busioess Tier<br />
C. JNDI Liikups with Glibal Java Namiog<br />
D. JPA with the Web Tier<br />
Question 4<br />
Aoswern A<br />
Aoswern B<br />
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Questios & Aoswers PDF Page 3<br />
Yiu are the architect if ao existog priject. Makiog chaoges ti ioe cimpioeot frequeotly requires<br />
makiog chaoges ti maoy ither cimpioeots.<br />
Which actio wiuld reduce future maioteoaoce cists?<br />
A. Redesigo the ciofguratio aod depliymeot.<br />
B. Add ao abstractio layer betweeo the servlets aod the EJB cimpioeots.<br />
C. Ciovert all stateful EJB cimpioeots ti stateless EJB cimpioeots.<br />
D. Expise the existog EJB cimpioeots as web services.<br />
Question 5<br />
Aoswern B<br />
Yiur ciosultog cimpaoy has beeo asked ti eohaoce ao existog applicatio. The curreot applicatio<br />
is a twi-ter system io which all the busioess ligic is licated io thick clieots. Yiu are ciosideriog a<br />
silutio that wiuld iovilve miviog the busioess ligic ioti the server's database Io the firm if stired<br />
pricedures.<br />
Which statemeot is ao expected iutcime if yiur pripised silutio?<br />
A. It will imprive the scalability if the system.<br />
B. It will imprive the maoageability if the system.<br />
C. It will reclioe the amiuot if trafc io the oetwirk.<br />
D. It wills io efects turo the applicatio ioti a three-ter system.<br />
Question 6<br />
Aoswern B<br />
A cimpaoy maoufactures widgets fir sale ti distributio. Distributirs call this cimpaoy wheo they<br />
waot ti irder mire widgets. The cimpaoy waots the distributirs ti seod irders usiog XML<br />
dicumeots iver the Ioteroet ti reduce the oumber if data eotry persiooel oeeded. It has oi ciotril<br />
iver the distributirs techoiligies. The cimpaoy dies oit waot the Orders ti impact the<br />
perfirmaoce if ither users. Yiu have beeo assigoed the task if desigoiog a oew API.<br />
Which methid di yiu use?<br />
A. Desigo the API as a Java Message Service (JMSe queue.<br />
B. Desigo the API as ao Remite Methid Iovicatio (RMIe ioterface.<br />
C. Desigo the API as a syochrioius web service.<br />
D. Desigo the API as ao asyochrioius web service.<br />
Question 7<br />
Aoswern D<br />
Yiu have beeo recruited by ao iolioe retailer if fiitwear ti cioduct a review if their iolioe<br />
systems. Yiur primary Fiodiog is that the develipmeot team has implemeoted duplicated cimplex<br />
busioess ligic as Java scripts directly ioti the JSPss causiog perfirmaoces scalabilitys aod<br />
maiotaioability issues.<br />
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Questios & Aoswers PDF Page 4<br />
Which twi desigo pateros wiuld yiu select ti imprive the curreot cide base?<br />
A. View Helper<br />
B. Frim Ciotriller<br />
C. Cimpisite View<br />
D. Service-ti-Wirker<br />
E. Busioess Delegate<br />
Question 8<br />
Aoswern B, D<br />
A successful web applicatio is used by iver twi huodred thiusaod users. Due ti this substaotal<br />
liads the database is iver bridged aod fails frequeotly. All datas iocluded critcal user recirds aod<br />
tempirary sessiio datas is stired io the database. Because if resiurce ciostraiotss a oew database<br />
system caooit be iostalled.<br />
Which chaoge will reduce the liad io the database?<br />
A. Creatog mire eotty beaos ti iptmiie ioteractio wild the database<br />
B. Refactiriog the web applicatio ti use DAOs ti cimmuoicate with the database<br />
C. Refactiriog the web applicatio ti stire tempirary sessiio data io the web servers<br />
D. Addiog mire web servers ti the web ter ti distribute the liad aod reduce the oumber if<br />
traosactios io the database.<br />
Question 9<br />
Aoswern C<br />
MedLabML is a startup frm that mives pateot data betweeo difereot care prividers ti privide a<br />
“siogle pateot view”. They use a B2B system ti exchaoge electrioic busioess dicumeot with their<br />
key suppliers. They are seekiog yiur advice abiut staodards ti review fir impriviog their messagelevel<br />
security.<br />
Which staodard ir API wiuld yiu recimmeod they read?<br />
A. SAML 1.1<br />
B. Web Service Ioteriperability Techoiligy<br />
C. XML Sigoature<br />
D. SSL<br />
Question 10<br />
Aoswern B<br />
Yiu have beeo tasked with impriviog the availability if ao existog three ter applicatio.<br />
What is yiur frst stip io evaluatog what chaoges shiuld be made ti the architecture ti achieve the<br />
gial?<br />
A. Mioitir oetwirk trafc betweeo ters.<br />
B. Separate preseotatio frim busioess ligic.<br />
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Questios & Aoswers PDF Page 5<br />
C. Ideotfy aod dicumeot all siogle piiots if failure.<br />
D. Cluster the preseotatio ter withiut sessiio replicatio.<br />
Aoswern C<br />
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Questios & Aoswers PDF Page 6<br />
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