Object Oriented Analysis and Design , Question Paper of MCA 4th Semester, Download Previous Years Question Paper 3

Roll No.

MCA (Sem. - 4th)

OBJECT ORIENTED ANALYSIS AND DESIGN

SUBJECT CODE : MCA - 405-C (Elective - 1)

Paper ID : [80121]

Time: 03 Hours

Instruction to Candidates:

1) Attempt any one question from each Sections A, B, C & D.

2) Section-E is Compulsory.

3) Use of non-programmable Scientific 'Calculations allowed.

                                      Section - A

Q1) Prepare a class diagram from the instance diagram in the following figure .Make your own assumptions about the system.

Q2) Prepare a list of objects that you would expect each of the following systems to handle :

          (a) A program for laying out a Newspaper.

          (b) A Telephone Answering Machine.

                                      Section - B

Q3) Define the following terms with examples :

          (a) Interaction Diagrams.

          (b) Class and Object.

          (c) Object Model.

          (d) Data Abstraction.

Q4) A directory file contains information about files in a directory including both ordinary files as well as other directory files. Prepare an object diagram which models directory files and ordinary files. Since a directory plus a filename uniquely identifies afile, you may use a filename as a qualifier.

                                                Section - C

Q5) What are the various object modeling techniques. Discuss each of them with example.

Q6) What are the various phases of system life cycle. Explain with example.

                                                Section - D

Q7) What is a DFD. How is it used to design functional models. Explain with example.

Q8) Explain the following :

          (a) Activity Diagram

          (b) State Chart Diagram.

                                                Section - E

Q9)

a) What is the use of constructors?

b) What is the use of default constructors?

c) How is (ios::app) mode different from (ios::ate mode)?

d) What is a virtual class?

e) What is a friend functions?

0 How is object different from a class?

g) What is meant by initialization of a variable?

h) What is polymorphism?

i) What is advantages of scope resolution operator?

j) Explain the difference between abstraction and data hiding?