Design Patterns Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Design Patterns Interview Questions

Questions Answers Views Company eMail

How can we design/implement singleton object?

HP,

3 9097

What is impedance mismatch and How to solve the problem?

HP,

1 7866

Design Facade pattern - What is its application in projects ?

HP,

1 3899

Design the Factory pattern and What is its application ?

HP,

1 5903

How to analyze the design patterns ?

HP, Infosys, RRB,

1 6965

What are the design patterns and How can they make life easier for software development ?

ABC, HP,

1 6638

Explain the singleton, facade, or handle class design pattern?

ABC,

2 8433

what is a Design Pattern?

TCS,

5 10171

What are the different types of Design Patterns and Explain them?

Genpact, Gradatim, Gul Ahmed, TCS, Wipro,

3 52727

When to Use a Factory Pattern?

3 13470

In which application lifecycle phases is an application architecture produced?

Microsoft,

1 4896

In what cases are synchronous architectures more appropriate than asynchronous architectures?

Wipro,

1 5214

What is the publish/subscribe model?

1 5557

What are the advantages of thin clients?

1 5288

What are the advantages of asynchronous architectures?

Microsoft,

1 5440

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Un-Answered Questions { Design Patterns }

What is proxy in design pattern?

986

What is a behavioral design pattern?

998

Is singleton bean thread safe?

912

Which design patterns have you used in your project ?

1007

What are the SDLC phases you have invloved ?

2702

Write the code for a singleton class?

1008

2. Create your own deﬁnition of a system. Based on the “system” deﬁnitions a. Identify your viewpoint of shortcomings in the deﬁnitions. b. Provide rationale as to why you believe that your deﬁnition overcomes those shortcomings. c. From an historical perspective, identify three precedented systems that were replaced by unprecedented systems.

3194

Can you explain singleton pattern?

1002

Is singleton a design pattern?

966

Which design pattern is mvc?

1011

What is aop design?

987

What is the use of repository pattern?

1001

How do you choose a design pattern?

992

What is the difference between factory and builder design pattern?

939

What is a lazy initialization in singleton?

1093

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