Design - Interview Questions and Answers for 'Elsevier' | Search Interview Question

Design - Interview Questions and Answers for 'Elsevier' - 4 question(s) found - Order By Newest

Very frequently asked.Usually among first few questions.

Q1. What is MVC ?

Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

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Almost sure to be asked in every company using any Dependency Injection framework ( Spring, Guice etc )

Q2. What is Dependency Injection or IOC ( Inversion of Control ) ?

Design

Ans. It is a Design Pattern that facilitates loose coupling by sending the dependency information ( object references of dependent object ) while building the state of the object. Objects are designed in a manner where they receive instances of the objects from other pieces of code, instead of constructing them internally and hence provide better flexibility.

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Very Frequently asked to Senior Software Engineers or Developers.

Q3. Describe some of the Design Patterns you have used ?

Design

Ans. [Open Ended Answer]

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Q4. Explain TDD or Test Driven Design ?

Design

Ans. TDD is a development process that involves short iterations: first an automated test case is written. Then, the code is written to pass that test, and finally one refactors the new code to acceptable standards.

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