Java EE 6 Enterprise JavaBeans Developer Certified Expert
Exam Number: 1Z0-895 / 1Z0-895
Duration: 110 minutes
Associated Certifications: Oracle Certified Expert, Java EE 6 Enterprise JavaBeans Developer
Number of Questions: 60
Exam Product Version: Java EE,
Passing Score: 73%
Exam Price: US$ 150
This exam has been validated against EE 6.
format: Multiple Choice
Exam Code: 1Z0-895
Exam Name: Java Platform, Enterprise Edition 6 Enterprise JavaBeans Developer Certified Expert Exam
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Exam Code: 1z1-434
Exam Name: Oracle SOA Suite 12c Essentials
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NO.1 Given the following stateless session bean:
How would you change the EJB to prevent multiple clients from simultaneously accessing the
sayHello method of a single bean instance?
A. Convert sayHello into a synchronized method
B. Execute the call to generateLocalizedHello in a synchronized block
C. Convert generateLocalizehello into a synchronized method
D. Convert HelloWordBean into a singleton bean
E. No changes are needed
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Reference: The Java Tutorial, Synchronized Methods
NO.2 Suppose an EJB component is named HelloWorldBean is deployed as a standalone ejb-jar.
Assuming the HelloWorldBean is implemented as follows:
Which types of clients are guaranteed to have access to HelloWorldBean:
A. Java EE application client container applications
B. Java EE ejb components within the same ejb-jar
C. Java EE web-tier component applications deployed in the same container
D. Java EE ejb component applications deployed in the same container
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NO.3 A developer creates a stateless session bean, EmployeeServiceBean, and its interface,
EmployeeService. The session bean uses two annotated entity classes, Employee.class and
Which two package options can the developer use when creating a deployable EAR? The proposed
directory structure is listed for each option. (Choose two)
A. Emp.ear emp-ejb.jar META-INF/persistence.xml EmployeeService.class EmployeeServiceBean.class
lib/emp-classes.jar Employee.class Department.class
B. Emp.ear META-INF/orm.xml EmployeeService.class EmployeeServiceBean.class Employee.class
C. Emp.ear emp-ejb.jar META-INF/persistence.cml Employee.class Department.class
D. Emp.ear emp-ejb.jar persistence.xml Employee.class
Department.class EmployeeService.class EmployeeServiceBean.class
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NO.4 Given singleton bean FooEJB:
How many distinct FooEJB bean instances will be used to process the code on the lines 101-105?
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Java has several design patterns Singleton Pattern being the most commonly used. Java Singleton
pattern belongs to the family of design patterns, that govern the instantiation process. This design
pattern proposes that at any time there can only be one instance of a singleton (object) created by
NO.5 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 @PermitAll 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 defines individual method permissions for the methods used by roles "user "guest",
and "admin" In the deployment descriptor.
D. The developer annotates the bean class with @RolesAllowed("user") and annotates the methods
used by role "guest" or "admin" individually.
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
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NO.6 A developer needs to deliver a large-scale enterprise application that connects developer
chooses an EJB 3.1-compliant application server, which three are true about the EJB business
component tier? (Choose three.)
A. Load-balancing is NOT a guarantee for all EJB 3.1 containers.
B. Clustering is guaranteed to be supported by the EJB 3.1 container.
C. Thread pooling can be optimized by the Bean Provider programmatically.
D. Bean Providers are NOT required to write code for transaction demarcation.
E. Support for server fail-over is guaranteed for an EJB 3.1-compliant application server.
F. EJB 3.1 compliant components are guaranteed to work within any Java EE 6 application server
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The EJB tier hosts the business logic of a J2EE application and provides system-level services to the
business components problems include state maintenance, transaction management, and availability
to local and remote clients.
NO.7 Which is a valid use of the EJB 3.x TimerHandle object?
A. To retrieve all active timers associated with this bean
B. To adapt EJB 3.x timers to EJB 2.1 and earlier timers
C. To obtain a seralizable timer handle that may be persisted
D. To be implemented by EJB classes that are to be registered with the timer service
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The TimerHandle interface allows the bean provider to obtain a serializable timer handle that may be
Since timers are local objects, a timer handle must not be passed through a bean's remote business
interface, remote interface or web service interface.
Reference: javax.ejb, Interface TimerHandle
NO.8 FooBean and BarBean are both EJB 3.x stateless session beans with bean-managed transaction
demarcation. The business method foo in FooBean starts a UserTransaction and invokes the business
method bar in BrBean.
Given: What is the expected result of this method invocation assuming control reaches Line 12?
A. FooBean.foo method receives MyAppException.
B. The container discards the BarBean bean instance.
C. FooBean.foo method receives a javax.ejb.EJBException that wraps MyAppException.
D. FooBean.foo method receives javax.transaction.TransactionRolledbackException.
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The transaction will roll back.
* In bean-managed transaction demarcation, the code in the session or message-driven bean
explicitly marks the boundaries of the transaction. Although beans with container-managed
transactions require less coding, they have one limitation: When a method is executing, it can be
associated with either a single transaction or no transaction at all. If this limitation will make coding
your bean difficult, you should consider using bean-managed transactions.
Reference: The Java EE 5 Tutorial, Bean-Managed Transactions
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