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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA V Semester Examinations, January - 2018
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DESIGN PATTERNSTime: 3 Hours
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Max. Marks: 60
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Note: This question paper contains two parts A and B.
Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries 8
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marks and may have a, b, c as sub questions.--- Content provided by FirstRanker.com ---
PART - A
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5 ? 4 Marks = 20
1.a)
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The Gang of Four suggests a few strategies for creating good object-oriented designs. Whatare they?
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[4]
b)
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What is the intent of Abstract Factory pattern? Explain.--- Content provided by FirstRanker.com ---
[4]
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c) What is Composite pattern? Give an example.--- Content provided by FirstRanker.com ---
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[4]d) Under what conditions should an Observer pattern not be used? Explain.
[4]
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e) Explain the brief history of Design patterns.
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[4]
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PART - B--- Content provided by FirstRanker.com ---
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5 ? 8 Marks = 40
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2.
What is Design pattern? Explain the step by step approach to apply a design pattern
proficiently? Also write the structure of the design pattern template.
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[8]
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OR3.
List out different design patterns that are commonly used. Write the catalog of design
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patterns and its organization. What are the criteria used to select them? Explain. [8]4.
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What is creational pattern? Discuss about Singleton and Prototype patterns in detail.[8]OR
5.a)
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Explain the functionality of operations that are accessed indirectly through user operations.
b)
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Discuss about the implementation issues of Builder pattern.--- Content provided by FirstRanker.com ---
[8]
6.a)
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Differentiate between adapter and bridge design pattern.
b)
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What are the known uses of adapter structural pattern? Explain.[8]
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OR
7.a)
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Write about the language features that are exploited by Proxy pattern.b)
What are participants of flyweight pattern? Discuss about the consequences of
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flyweight pattern.--- Content provided by FirstRanker.com ---
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[8]
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8.
List out various behavioral patterns. Explain in detail about Chain of Responsibility and
command behavioral patterns.
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[8]
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OR9.a)
What are the consequences of Mediator pattern? Explain.
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b)
What are the issues to be considered while applying Memento pattern?
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[4+4]
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10.Write in detail about Strategy and Visitor behavioral Patterns.
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[8]
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OR11.a) Explain the consequences of Template Method patterns.
b) Write the implementation issues of State behavioral pattern.
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[4+4]
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---oo0oo---
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