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SCWCD Certification Practice Tests SCWCD Study Guide (CX-310-081)

 

 

 

 

 

 

 

 

 
 SCBCD Certification Practice Test  

Features Of CertGear's SCBCD (CX-310-090) Certification Practice Test

  • Learn As You Go - Detailed explanations tell you not just the right answer, but why the right answer is right and the wrong answers are wrong. References for further study are also provided.

  • Customized Options - You decide the way you want to take the testing including:
    Timed, Live scoring, Randomization, Ask Incorrect, Show Answer, Select # of questions.

  • Ask Only The Questions You Got Wrong - This is a great feature. At the end of the exam, instead of being asked every question again, you can tell the test engine to only ask you questions that you got incorrect.

  • Randomization - The tests in our certification mode are dynamic, not fixed like some other practice tests are, so you'll get a new test every time. Each test is timed and the objectives are weighted the same as on the real exam.

  • History - The test engine keeps a history of all the exams and scores you have achieved on those tests. You can easily track your progress and help determine when you are ready to take the actual exam.

  • Categories - Many tests contain categories for you to selectively study topics. Additionally, you can see your grade in each category at the end of the exam.

  • Graphic Scoring - Graphical Breakdown Of Exam Results To Pinpoint Areas To Focus Your Study Effort..

  • Updates - Keep Up-To-Date With The Most Current And Most Accurate Exam Questions / Answers / Explanations With Complimentary Product Updates.

 


Free SCBCD Certification Practice Questions:

Consider the following container-managed bi-directional relationship between entity bean X and entity bean Y.

Assume that x1, x2 are instances of entity bean X and y1, y2 are instances of entity bean Y.

Their initial values are as follows:
Y y1 = x1.getY ();
Y y2 = x2.getY ();

What will be true after the following code runs:
x2.setY (x1.getY());

A) y1.isIdentical (x2.getY())
B) x2.isIdentical (y1.getX())
C) y1.isIdentical (x1.getY())
D) x2.isIdentical (y2.getX())
E) None of the choices are correct

  • [Ans: A, B]

  • Because the relationship between Bean X and Bean Y is a one-to-one relationship, X can never reference more than one Y, and Y can never reference more than one X. To manage the integrity of this relationship, the Container automatically manages both sides of the relationship when the accessor methods are invoked in either bean.

    In this example, the state of the relationship are as follows before the "x2.setY (x1.getY())" is executed:

     
    However, after "x2.setY (x1.getY())" is executed, the state of the relationship is as follows:


    Hence, the y1.isIdentical (x2.getY()) and x2.isIdentical (y1.getX()) are true.

    References: http://java.sun.com/products/ejb/docs.html (EJB2.0 Specs, Section 10.3.7.1)

 

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