Which of the following services does the EJB Container provide?A Object Distribution B Life Cycle Management C Integrated Web Server and Servlet Engine D Just in Time management Java Runtime Engine E Transaction Management
Choices A, B and E are correct.
Which of the following are not true about 2-tier architecture models?A Clients may be validation intensive, consequently requiring powerful hardware. B Any change to one tier typically affects both tiers. C Represents a single point of failure. D Each client makes a direct connection with the server E They are not very maintainable F They are quite manageable
Choices B, C and F are correct.
In a UML class diagram Private, Protected and Public attributes are shown byA -, +,# B +, -,hash C #, -, + D -,#, + E +,#, - F #, +, -
Answer: D
Which of the following may be used for synchronously communicating with legacy systems?A IIOP B HTTP C SHTML D JRMP with JNI E SMTP F RMI / IIOP G MOM
Choices A, D and F are correct.
What is an off-board server used for?A Providing Single-Sign on to a Java based application B Delegating complex processing to a separate server C Enable secure remote access to a mainframe by forwarding SSL requests to serial connections D As a database for storing the public keys of valid Certification Authorities (CA) E For performing symmetric key cryptography
Answer: C
Company ABC has a predominantly EJB based J2EE application that has be accessed by CORBA clients. Which connectivity option would you recommend?A RMI-JRMP B RMI with JNI C Java IDL D RMI-IIOP E HTTP tunneling
Answer: D
Which of the Classes and Interfaces need to be created by a bean developer?A Home Interface B Distributed Interface C Remote Interface D Bean Class E Bean Interface
Choices A, C and D are correct.
The Remote Interface of an Enterprise Bean extends from:A java.ejb.EJBRemote B javax.ejb.RemoteInterface C javax.ejb.EJBObject D javax.rmi.RemoteReference
Answer: C
Which of the following are not applicable to the Primary Key Class?A It must implement the java.io.Serializable interface B It must provide a default constructor C It must override hashCode() and equals() D Cannot be undefined if the PK is a Compound Primary Key E Primitive wrappers cannot be used when dealing with Single field keys
Choices D and E are correct.
You are looking at a class diagram that another developer has drawn. You notice a solid black diamond and a line linking two classes together. What does the black diamond imply in UML?A Aggregation B Association C Composite Aggregation / Composition D Dependency E Inheritance/Generalization
Answer: D
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