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Interview Questions and Answers for 'Eci telecom' - 7 question(s) found - Order By Rating

 Q1. Design a Coffee machine using Oops concepts.Design2017-06-13 20:26:14

 This question was recently asked at 'ECI Telecom'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     design  design a coffee machine     Asked in 1 Companies


 Q2. Write a Program to merge two sorted arrays ?Data Structure2017-03-27 08:46:57

Ans. We can merge two sorted array by using quick sort algorithm

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   Like         Discuss         Correct / Improve     arrays  merge sorted arrays     Asked in 2 Companies


Very Frequently asked to Senior Software Engineers or Developers.
  Q3. Describe some of the Design Patterns you have used ?Design2016-12-01 16:31:17

Ans. [Open Ended Answer]

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   Like         Discuss         Correct / Improve     design patterns     Asked in 17 Companies      intermediate        frequent


 Q4. Explain JMS ( Java Messaging Services ) ?JMS
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Ans. JMS Provides high-performance asynchronous messaging. It enables Java EE applications to communicate with non-Java systems on top of various transports.

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   Like         Discuss         Correct / Improve     java   j2ee   jms     Asked in 1 Companies


Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback)
  Q5. Explain Singleton Design Pattern ?Design
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Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html

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   Like         Discuss         Correct / Improve     java   design pattern   singleton   at&t   ebay  fidelity india  united healthcare india     Asked in 46 Companies      intermediate        frequent


Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.
  Q6. Differences between abstract class and interface ?Core Java
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Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

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   Like         Discuss         Correct / Improve     java   classes   abstract class   interfaces     Asked in 80 Companies      basic        frequent


 Q7. Write code for singleton classDesign

Ans. http://javasearch.buggybread.com/CodeSnippets/searchCodeSamples.php?keyword=singleton+class&category=code

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   Like         Discuss         Correct / Improve     singleton  code  coding  design pattern     Asked in 1 Companies      Intermediate        frequent



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