RingCentral Software Engineer Interview Questions and Answers

Leetcode trap watee question

4 Coding Questions Leetcode Level Medium to Hard. Had to solve it within 1.5 hours.

Was able to solve 2 questions - One hard and one Medium. Hadn't enough time to solve all.

Q1. DSA based round. Was asked to write 3 APIs based on the the given n-ary tree.
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Q2. Questions based on Path, end node, best path, etc.
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Q1. System Design round : Was asked to design RDBMS for the given problem.
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Q1. HM Round : Mostly behavioral based around Twilio Magic Values
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Q1. Bar Raiser Round : Taken by a director. Was asked behavioral questions again.
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Data Structure related questions

Q1. Java related interview questions
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Process for freshers-

Go through RS Agarwal book and be ready for logical reasoning questions

Criteria for selection is 75% so make sure to select right ans

There will be 2 questions based on selected language

And questions on general English.

Q1. Technical round will based on mentioned language in resume. My round was on Java language. So prepare the basic of Java and advance Java some time they ask you to write some syntax so prepare those synta...read more
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Q1. It's formality round Just present your self well Be ready to reallocate any where they want. You can ask some question about the work culture in company.
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A code to identify errors and write Junit. Optimise the code as well.

Q1. Stacks using queue
Ans. 
Implementing a stack using two queues
• Use two queues to simulate a stack

• Push operation: Enqueue the element to queue 1

• Pop operation: Dequeue all elements from queue 1 to queue 2, dequeue the last element from queue 1, then swap the queues

• Top operation: Return the front element of queue 1

• Example: Push 1, 2, 3 - Queue 1: [1, 2, 3], Queue 2: []

• Example: Pop - Queue 1: [1, 2], Queue 2: [3]
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Q2. BFS and Knapsack problem, previous project experience
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One hour Leet code medium question

Q1. Golang related questions and Question on projects done.
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