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Tuesday, March 28, 2017




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 Calculator is allowed.


                                      Section - A

Q1) What do you understand by inheritance ? Give mechanisms. What are the advantages of scope resolution & referencing ?

Q2) For the schema employee (emp-id, emp-name, street, city) give the class representation along with the attribute types. Give the characteristics of object oriented system. What is an object? Give an example.

                                      Section - B

Q3) Explain what are overloaded functions & how does a compiler proceed execute an overloaded function? What is the meaning of polymorphism?

Q4) Explain with examples the difference between overriding and overloading? What are the various types of operators available in C++? Explain an example by overloading << and >> operators to perform customized input and output.

                                      Section - C

Q5) What is meant by Class hierarchy? What are various types of Inheritance? Also explain the difference between subtype and subclass?

Q6) What are various types of files? What are the various modes iu which a file can be opened? Explain by giving examples.
                            
                                                Section-B

Q7) Consider an ATM system. Identify at least three different actors that interact with this system? Can this system be represented as ari actor? Justify your answer.

Q8) 
a) Discuss what the objects in each of the following lists have in common:
Bicycle, Sail-boat, Car, Truck, Airplane, Glider, Motorcycle, Horse.
b) Prepare a list of objects that you would expect each of the following systems to handle:

i) A telephone Answering Machine.
ii) A Catalog Store Order Entry System.


                                                Section - E

(a) What are container classes ?
(b) What is the role of friend functions?
(c) What is the role of an object in C++?
(d) What is meant by early binding?
(e) What is a structure and how is it different from a union?
(fl What is the role of classes in C++?
(g) What is a call by reference method in use o1 functions?
(h) What is a virtual class?
(i) What function can be used to open a file in C++.?

(j) What arc pure virtual functions.

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