Vaco Binary Simantics interview expeirence

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 1st Round Phone Screening round

  1. Brief  Introduction
  2.  Top Features of java
  3. Why Java is secure 
  4. real time example of abstraction
  5. What is polymorphism explain in detail
  6. Explain Exception Handling in Java
  7. Explain Threading
  8. How much Experience in SQL? Some basic questions SQL

2nd Round : Technical Interview
  1.  Breif Introduction
  2. Rate yourself in Java and SQl out of 5
  3. Write Java code to swap two variables
  4. Write Update queryto set country for given customer id
  5.  What is Join. Explain Type of joins
  6. Write query to join to tables based on custmer_id column using left join and fetch given data of  columns
  7. Then She asked to modify previous query by showing only 3rd largest amount of one table but don't remove left join
  8. Can you apply the limit function here? 
  9. Differnce between delete, drop and truncate
  10. difference between having and group by
  11. Can you apply both having and where clause, then what will be the order of code execution?
  12. What do you understand by windows function in SQl
  13. Differnce between Interface and Abstract class
  14. How can you create abstract class
  15. Write code to find factorial 
  16. Write code to split(divide) string into two parts
  17. Explain Inheritance in detail
  18. Explain polymorphism
  19. give real-time example of abstraction
  20. Write code for run time polymorphism
  21. Logical question: 2 trains are commming from two station A and B, Speeds and distance from both stations Has given, I have calculate time for meeting point and distance from point A to meeting point
3rd Round; Technical round + managerial Round
  1. Brefly explained about project and task for this position
  2. Indroduce yourself
  3. Why you left persistent, is there any specific reason?
  4. Rate yourself in DSA
  5. Write java code to find target sum for triplet. ask time and space complexity and asked me to optimize code
  6. Briefly explain about your previous project
  7. Have you ever worked in frontend? 
  8. Explain OOPS concept
  9. Explain Copy constructor
  10. Asked some basic linix commands
  11. Have you worked any deployment kind of task
  12. Describe any difficulty  you faced in your last company and how you resolved it
  13. What will be deal  if you delete some data from production without  taking a backup
  14. Logical question : You have 2 Jars for 4 ltr and 9 ltr, you don't have any measurement mark or equipment. How will you measure 1 ltr water.
  15. Give me only one reason Why should I hire you?

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