FINALTERM EXAMINATION SPRING 2006 CS506 - WEB DESIGN AND DEVELOPMENT (Session - 1 ) StudentID/LoginID:

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1 1 FINALTERM EXAMINATION SPRING 2006 CS506 - WEB DESIGN AND DEVELOPMENT (Session - 1 ) Marks: 55 Time: 120min StudentID/LoginID: Student Name: Center Name/Code: Exam Date: Friday, August 25, 2006 Please read the following instructions carefully before attempting any question: 1. This examination is open Handouts. 2. Answer all questions. a. There is no choice. b. You will have to answer correctly all questions in this examination to get the maximum possible marks. 3. Do not ask any questions about the contents of this examination from anyone. a. If you think that there is something wrong with any of the questions, attempt it to the best of your understanding. b. If you believe that some essential piece of information is missing, make an appropriate assumption and use it to solve the problem. 4. It is not necessary that your code should compile accurately, but your logic should be correct. **WARNING: Please note that Virtual University takes serious note of unfair means. Anyone found involved in cheating will get an `F` grade in this course. For Teacher's use only Question Total Marks Question Marks Question No: 1 ( Marks: 1 ) - Please choose one

2 2 You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective? public private protecte d transient default access Question No: 2 ( Marks: 1 ) - Please choose one In Java garbage collection is done by JVM (Java Virtual Machine) Programmer Both JVM (Java Virtual Machine)and Programmer OS (Operating System) None of given Question No: 3 ( Marks: 1 ) - Please choose one Which of following can be thrown using the throw statement? Error Throwable Exception RuntimeException All of Given Question No: 4 ( Marks: 1 ) - Please choose one

3 3 is/are the JSP Implicit Object(s). session application config All of Given None of Given Question No: 5 ( Marks: 1 ) - Please choose one JavaBeans are? A special Java class file Servlets Applets A Special form of JSP None of Given Question No: 6 ( Marks: 1 ) - Please choose one An expression tag contains a scripting language expression that is evaluated. True Question No: 7 ( Marks: 1 ) - Please choose one A final class can't be extended. True Question No: 8 ( Marks: 1 ) - Please choose one

4 4 ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container. True Question No: 9 ( Marks: 1 ) - Please choose one A method can not be made final until whole class is made final. True Question No: 10 ( Marks: 1 ) - Please choose one Servlet session and JSP session have different abilities. True Question No: 11 ( Marks: 15 ) Answer the following Short Questions 1. Differentiate between yielding and sleeping? 2. I am making a java application, and I need to force the garbage collection, how can I achieve that, if not why? 3. How can a GUI component handle its own events? Question No: 12 ( Marks: 10 ) You are required to write a servlet named CookiCounter, that will act like a counter, i.e.; it will display the number of time user has visited the page. You are required to implement this using Cookies. When the first time page will be visited it will display

5 5 Upon second refresh/revisit with in hour. And so on counter will keep on increasing depending upon refresh or revisit with in an hour. Note: 1. No Fancy HTML is required. 2. If you will use any other technique then cookies to implement this requirement you will get zero marks. Question No: 13 ( Marks: 20 ) You are going to build a part of Project Tracking System. The database that will be used for this system is shown below, When your application starts, the index.jsp would be displayed. Employee will provide its EmployeeID & password to login. If EmployeeID & password are correct, the program will lead to project.jsp. This page will display all the projects the current Employee is working on in tabular format the fields this table will have will be EmployeeId, ProjectId, ProjectName,ProjectDescription, ProjectBeginDate and ProjectEndDate, a sample table is shown below, EmployeeId ProjectId ProjectName ProjectDescription Project ProjectEndDate

6 6 Begin Date The user can return to index.jsp by clicking on hyperlinks available at bottom of project.jsp. If the username and password is not correct then user will be sent/redirected back to "index.jsp". You are required to use JSP (and /or Servlets) and JavaBeans to solve this problem. Simplifications For username and password varification you can write intermediate jsp page like "authenticate.jsp page. Note: 1. Assume name of DSN is projectdsn. 2. Assume that all the fields in the database are of type 3. String/Text. Assume that user s Username is first name and is also unique of each 4. Employee. No Fancy HTML is required. 5. Concentrate on Logic/Usage of proper classes.