Oracle 1Z0-895 echte frage : Java EE 6 Enterprise JavaBeans Developer Certified Expert

Ob druckbares PDF, installierbare Testsoftware für Windows oder Online Test Engine im Browser – bei EchteFrage wählen Sie die Lernform, die zu Ihrem Alltag passt. Alle drei Varianten enthalten die 90 Übungsfragen zur 1Z0-895 Prüfung (Oracle Java EE 6 Enterprise JavaBeans Developer Certified Expert).

Oracle 1Z0-895 Prüfungsübersicht:

Zertifizierungsanbieter:	Oracle
Prüfungsname:	Oracle Java EE 6 Enterprise JavaBeans (EJB) Entwickler – Zertifizierungsprüfung zum Experten
Prüfungsnummer:	1Z0-895
Prüfungsformat:	Szenariobasierte Fragen, Mehrfachauswahl
Verwandte Zertifizierungen:	Oracle Certified Professional, Java SE Oracle Certified Expert, Java EE 6 Webkomponenten-Entwickler
Verfügbare Sprachen:	Englisch
Empfohlenes Training:	Java EE-Schulungen von Oracle University
Prüfungsanmeldung:	Oracle-Zertifizierungsportal
Beispielfragen:
Prüfungsmethode:	Beaufsichtigte Prüfung, die über zugelassene Prüfungszentren oder eine Online-Aufsicht durchgeführt wird (für Oracle-Zertifizierungsprüfungen werden historisch gesehen von Oracle genehmigte Anbieter wie Pearson VUE eingesetzt).
Voraussetzungen:	Empfohlene Kenntnisse in der Java SE-Programmierung sowie den Grundlagen von Java EE; vertiefte Kenntnisse von Entwurfsmustern für Unternehmensanwendungen werden dringend empfohlen.
Offizielle Syllabus-URL:	https://education.oracle.com

Oracle 1Z0-895 Prüfungsthemen:

Häufig gestellte Fragen rund um die 1Z0-895 Zertifizierungsprüfung

Oracle Java EE 6 Enterprise JavaBeans Developer Certified Expert 1Z0-895 Prüfungsfragen mit Lösungen

Frage #1

A developer implements a session bean which acts as a session facade for an application. This means that clients will only see this session bean's interface which offers the application interface, where are three distinct roles known at development time: "user", "admin", and "guest". The majority of the methods will be used by role "user". All methods must have role permissions active and roles may be added or changed in the future.
Which two scenarios are correct? (Choose two.)

A. The developer annotates the bean class with @RolesAllowed("user") and annotates the methods used by role "guest" or "admin" individually.
B. The developer annotates the bean class with @DenyAll and annotates the methods used by role "user", "guest", or "admin" individually.
C. The developer annotates the bean class with @PermitAll and annotates the methods used by role "guest" or "admin" individually.
D. The developer defines individual method permissions for the methods used by roles "user "guest", and "admin" In the deployment descriptor.
E. The developer defines a method permission with method name "*" and role "user" and adds individual method permissions for the methods used by roles "guest" and "admin" in the deployment descriptor.

Frage #2

MyMsg is a JMS message-driven bean with container-managed transaction demarcation. FooBean is an EJB 3.x stateless session bean that sends message to the JMS destination with MyMsgBean is associated.
MyMsgBean's message listener method has transaction attribute REQUIRED, and is defined as follows:
10.
public class MyMsgBean implements javax.jms.messageListener {
11.
public void onMessage(javax.jms.Message message) {
12.
/ / do some work not shown here
13.
thrown new RuntimeException("unexpected error . . . ");
14.
}
Which statement is true about the result of message processing?

A. The container discards the MyMsgBean bean instance.
B. The container does NOT roll back the transaction, and FooBean can continue the transaction.
C. FooBean receives javax.ejb.EJBException.
D. FooBean receives the original RuntimeException thrown from the message listener method.

Frage #3

A stateful session bean needs to restore its conversational state to its initial state if the transaction in which the bean is participating rolls back.
Which bean method can be used to do this?

A. SessionContext.setRollbackOnly
B. SessionSynchrinization.beforeCompletion
C. SessionSynchronization.afterCompletion
D. SessionContext.getUserTransaction

Frage #4

A developer writes a Singleton bean that holds state for a single coordinate: An update thread acquires an EJB reference to CoordinateBean and alternates between invoking SetCoordinate (0, 0) and SetCoordinate (1, 1) in a loop.

At the same time, ten reader threads each acquire an EJB reference to CoordinateBean and invoke getCoordinate () in a loop.
Which represents the set of all possible coordinate values [X, Y] returned to the reader threads?

A. [0, 0], [1, 1]
B. [0, 0], [0, 1], [1, 0], [1, 1]
C. [1, 1]
D. [0, 0]

Frage #5

A developer writes a stateless session bean with one local business interface and with container-managed transactions. All business methods have transaction attribute REQUIRED. The bean has an injected field sessionCtx of the type SessionContext. Which two operations are allowed in a business method of the bean? (Choose two.)

A. sessionCtx.setRollbackOnly
B. sessionCtx. getEJBLocalObject
C. sessionCtx. getMessageContext
D. sessionCtx. getBusinessObject
E. sessionCtx. getEJBObject

Fragen und Antworten: