Which of the following exceptions is thrown by the ejbLoad() method of an entity bean when the database row to be loaded is not found ?
1.NoSuchEntityException
2.EJBException
3.RemoteException
4.ObjectNotFoundException
Which of the following is true for EJB?
1.EJB is server-side component architecture for distributed applications in Java
2.EJB facilitates scalable, secure and transaction-oriented applications
3.EJB supports portability and reusability
4.All of the above.
Which part of multi-tier enterprise application contains EJB component?
1.Application Server
2.Web Server
3.Database Server
4.Fat Client
Which statement correctly identifies the goals of the designers of the EJB architecture?
1.The EJB architecture requires that users be aware of the low-level transaction details of the Java EE platform.
2.The EJB architecture is the standard component architecture for building distributed business applications in the Java programming language. (*)
3.Although the EJB architecture defines the contracts that enable tools to develop and deploy components, each application server vendor must produce its own set of additional tooling.
4.The EJB architecture provides a standard way of persisting state data using the Java Persistence API, Java Data Objects, and JDBC.
A message driven bean is like statefull session bean that encapsulates the business logic and doesn't maintain state.
1.True
2.False
3.none
4.all
EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of container managed persistence.
1.True
2.False
3.none
4.all
EJB system’s performance tuning is the responsibility of
1.Bean Provider
2.EJB Deployer
3.Application Assembler
4.Tool Vendor
The EJB Transaction Attribute that ensures the method call that always takes place in a transaction, either client started or container started’ are
1.TX_SUPPORTS
2.TX_MANDATORY
3.TX_REQUIRED and TX_REQUIRES_NEW
4.Either A or B
Upon invoking getRollbackOnly() method by a business method in an entity bean, which transaction attribute settings will lead the ejb container to throw an exception?
1.Required
2.RequiresNew
3.Never
4.Mandatory
When a session bean has container-managed demarcation value of 'Supports', which three methods run in an unspecified transaction context? 1. ejbActivate 2. getRollbackOnly 3. getUserTransaction 4. ejbRemove 5. afterBegin 6. afterCompletion
1.1,4,3
2.4,2,6
3.1,4,6
4.2,5,6
Which EJB uses EJB-QL for query operations?
1.BMP Entity Bean
2.CMP Entity Bean
3.Session Bean
4.Message-Driven Bean
Which EJB usually represents persistent data?
1.Entity Bean
2.Stateless Session Bean
3.Stateful Session Bean
4.Message-Driven Bean
Which interface should be implemented by a stateful session bean if it needs to synchronize its conversational state with the transactional context?
1. javax.transaction.UserTransaction
2. javax.ejb.SessionSynchronization
3.javax.ejb.EJBContext
4. javax.transaction.TransactionContext
Which is least visibility scope for Java bean in JSP?
1.Page
2.Session
3.Request
4.Application
Which is not a valid scope for Java bean in JSP?
1.Page
2.Session
3.Request
4.Global
Which is the method available in SessionContext interface?
1.afterBegin()
2.getRollbackOnly()
3.setSessionCotext()
4.getUserTransaction()
Which JSP tag is used to transfer processing to another JSP page?
1.<jsp:include>
2.<jsp:forward>
3.<jsp:redirect>
4.<jsp:useBean>
Which method of the request object is used to extract values of the input fields in a form when it is submitted?
1.getParameter
2.getParameterNames
3.getValues
4.putValues
Which of the EJB has a passive state in its life cycle? I. Stateless Session Bean. II. Message-Driven Bean. III. BMP Entity Bean.
1.Only (I) above
2.Only (II) above
3.Only (III) above
4.Both (I) and (II) above
Which of the following can be directly invoked by the client?
1.ejbPassivate
2.business methods
3.setSessionContext
4.newInstance
Which of the following distributed object technology is/are not included in Java? I. CORBA. II. DCOM. III. RMI. IV. EJB.
1.Only (I) above
2.Only (II) above
3.Only (III) above
4.Only (IV) above
Which of the following EJB has no state? i. Message-Driven Bean. ii. BMP Entity Bean. iii. Stateless Session Bean. iv. Stateful Session Bean.
1. Both (I) and (II) above
2. Both (II) and (III) above
3.Both (III) and (IV) above
4. Both (I) and (III) above.
Which of the following EJB type has no Remote interfaces?
1.Message-Driven Bean
2.BMP Entity Bean
3.CMP Entity Bean
4.none
Which of the following is an approach for state maintenance in Web applications?
1.Hidden Form Field
2.URL Rewriting
3.Cookies
4.All of the above.
Which of the following is not a container for EJB? I. Internet Information Server. II. Java System Application Server. III. Tomcat. IV. WebLogic.
1.Both (I) and (II) above
2.Both (II) and (III) above
3.Both (III) and (IV) above
4.Both (I) and (III) above.
Which of the following is not a property of EJB transaction?
1.Atomicity
2.Consistency
3.Isolation
4.Distributed
Which of the following is not an implicit object in JSP? I. Request. II. Session. III. Vector. IV. In.
1.Both (I) and (II) above
2.Both (II) and (III) above
3.Both (I) and (III) above
4.Both (III) and (IV) above.
Which of the following is not true for <jsp:useBean> tag in JSP page?
1.Locates a bean instance
2.Stores object reference of the bean in a variable
3.Creates an instance if fails to locate the bean instance
4.All the above.
Which of the following is not true for servlet?
1.It is persistent
2.Platform independent
3.High performance
4.It is single threaded.
Which of the following is the format for EJB deployment descriptor files?
1.XML
2.XSL
3.HTML
4.Java
Which of the following is true for CORBA?
1.Protocol for distributed computing
2.Database specification
3.Specification for distributed objects
4.Both (c) and (d) above.
Which of the following is true for Java Bean?
1.It can not be a GUI component
2.It never implements serializable interface
3.It has zero-argument constructor
4.It is a distributed component
Which of the following is true for JNDI?
1.Database service
2.Naming and Directory Service
3.Network Service
4.Web Service
Which of the following is/are true for JSP technology? I. It is persistent. II. Platform independent. III. Browser executes the code.
1.Only (I) above
2.Only (II) above
3.Both (I) and (II) above
4.Both (II) and (III) above
Which of the following types of Enterprise Java Bean will be most likely to be difficult to port from one App Server to another?
1.Stateful Session Beans
2.Stateless Session Bean
3.BMP (Bean Managed Persistence) Entity Bean
4.CMP (Container Managed Persistence) Entity Bean
Which role in EJB architecture is responsible for EJB Server?
1.EJB Deployer
2.Application Assembler
3.Network Engineer
4.Server Provider
Which statement about life-cycle callback methods is correct?
1. Life-cycle callback methods must be implemented in the bean class.
2.Life-cycle callback methods can have public, private, protected, or packagelevel access. (*)
3. A life-cycle callback method can only have a single callback annotation. In other words, you cannot define a single method and give it two different callback annotations.
4. Life-cycle callback methods can be declared as static.
Which statements about a session bean class are true?
1.It is a final class
2.Overloaded constructors are supported
3.Their business methods can be 'private'
4.The ejbCreate() method must not be a final method
Which two of the following is responsible to creates ejb-jar files? 1. The bean provider. 2. The application assembler. 3. The deployer. 4. The system administrator.
1.1 and 2
2.2 and 3
3.3 and 4
4.4 and 1
Which two of the following must be included in every ejb-jar file? 1. Stubs for the EJBHome and EJBObject interface. 2. The JAR Manifest file. 3. A deployment descriptor. 4. The JNDI context. 5. The EJB's home interface.
1.1 and 3
2.2 and 5
3.3 and 5
4.4 and 2