HomeBell Interview Experience

1st Round(Telephonic) 

  • Database Queries
  • Authorization Module of an application
  • Median of two sorted arrays

2nd Round(Telephonic) 

  • Difference between mongo n postgresql
  • Difference between postage n mysql
  • POST vs GET except for the basic one
  • Print the linked list in reverse manner(Not actually reversing)
  • /post/1 n /posts proper json output structure
  • Multiple inheritance
  • interfaces
  • rails views, active record queries
  • has_many through when to use
  • linux directory structure

3rd Round(ftf) CTO 



  • Design a URL Shortener, ques around db vs hash for short code
  • Security
  • Web session
  • Inventory Management System Design
  • Why leaving current organization

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