Download JNTUA MCA 2016 Nov 5th Sem 9F00505c Design Patterns Question Paper

Code: 9F00505c

MCA V Semester Regular & Supplementary Examinations November/December 2016

DESIGN PATTERNS

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(For 2011, 2012, 2013 & 2014 admitted batches only)

Time: 3 hours                                                           Max. Marks: 60

Answer any FIVE questions

All questions carry equal marks

1. (a) Justify the statement designing reusable object oriented software is harder.
   

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   (b) List and explain the reasons for redesign of the particular pattern.
2. (a) Explain the role of document structure in design pattern.
   (b) With the help of an example, explain the relationship between MonoGlyph and its classes.
3. (a) Which pattern lets a class defer instantiation to subclasses? What is the motivation for that? Explain.
   (b) Give brief description about the benefits of prototype pattern.

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4. What pattern is used to convert the interface of class into another interface? Discuss the applicability, structure, participants, collaborations, consequences and implementation issues of the same.
5. (a) When can we apply the Flyweight pattern? Explain in detail.
   (b) Why we need to provide the uniform interface to a set of interfaces in a subsystem? Explain.
6. (a) Describe the motivation for chain of responsibility pattern.
   (b) What is meant by traction? Which pattern is used to perform transaction? What are its consequences and implementation issues? Explain.

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7. Write short notes on the following.
   1. Participants of memeto pattern.
   2. Collaborations of observer pattern.
   3. Applicability of mediator pattern.
8. (a) Describe the role of state pattern in design of a particular pattern.
   

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   (b) Write about the importance of template method.

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