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Cvent interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Cvent
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3 rounds | 10 Coding problems
Interview preparation journey
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Preparation
Duration: 2.5 months
Topics: Algorithms, Data structures, Database Management, Operating systems, Computer Networks, Asymptotic notations
Tip
Tip

Tip 1 : Practice questions in a time bound manner. Set a timer and solve the questions within that time frame only as the interview is also going to be time bound.

Tip 2 : Always revise. Mark the questions that you couldn't solve in the first go. Revise them again after a week or 2 so that the concepts become more clear.

Application process
Where: Campus
Eligibility: Above 7 cgpa
Resume Tip
Resume tip

Tip 1 : Do at least 1 development project and mention clearly how you contributed in that.
Tip 2 : Only mention those skills in which you are confident. If you are at basic level for some skill, mention it accordingly.

Interview rounds
01
Round
Easy
Online Coding Interview
Duration90 Minutes
Interview date1 Sep 2018
Coding problem5

It was the first round. Was taken online and there were 2 invigilators from the company

1. DBMS Question

Questions around queries related to JOINS, GROUP BY, ORDER BY, ACID properties

Problem approach

Tip 1 : Read the fundamentals of DBMS thoroughly and practice queries specially JOINS

2. Operating System Questions

Questions around Deadlock, Semaphore, Virtual memory, multitasking and multithreading.

Problem approach

Tip 1 : Read Galvin book for OS

3. Computer Networking Question

Questions around transport layer, wireless technology, LAN, application layer.

Problem approach

Tip 1 : Read book Computer Networks: A Top Down Approach by Kurose and Ross

4. OOPS Based Question

Questions around Classes, inheritance, polymorphism, encapsulation and abstraction.

Problem approach

Tip 1 : Read book E. balagurusamy

5. Remove Duplicates From String
Moderate
25m average time
0/80
Asked in companies
InfosysMicrosoftCisco

You are given a string (STR) of length N, consisting of only the lower case English alphabet.

Your task is to remove all the duplicate occurrences of characters in the string.

Fo...
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Problem approach

I used the concept of sets to solve this
All 10 test cases passed

Try solving now
02
Round
Easy
Face to Face
Duration60 Minutes
Interview date1 Sep 2018
Coding problem3

Face to face interview with a senior software developer

1. Puzzle

Cut a circular cake into 8 pieces with only 3 cuts

Problem approach

Tip 1 : Practice puzzle problems from geeksforgeeks. It has a lot of variety

2. Count Ways To Reach The N-th Stairs
Moderate
30m average time
80% success
0/80
Asked in companies
Morgan StanleyAdobeExpedia Group

You have been given a number of stairs. Initially, you are at the 0th stair, and you need to reach the Nth stair.


Each time, you can climb either one step or two steps.


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Problem approach

I started with the recursive approach.
After a hint from the interviewer, i solved the problem using dynamic programming.

Try solving now
3. Resume based Question

Questions around my web development project. What was the impact, what was my role and what challenges i faced.

Problem approach

Tip 1 : never lie on your resume and be thorough about the projects you did

03
Round
Medium
Face to Face
Duration60 Minutes
Interview date1 Sep 2018
Coding problem2

Questions around my resume mainly and 1 coding question. Was taken by the engineering manager

1. LCA - Lowest Common Ancestor
Hard
40m average time
70% success
0/120
Asked in companies
Dell TechnologiesMyntraAmazon

The lowest common ancestor (LCA) is a concept in graph theory and computer science.

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Problem approach

I used the concept of recursion in trees and solved the probelm with O(n) complexity. 
Search through the left and right subtrees and return answer.

The node which has one key present in its left subtree and the other key present in the right subtree is the LCA. If both keys lie in the left subtree, then the left subtree has LCA also, otherwise, LCA lies in the right subtree.

Try solving now
2. Resume based Question

I was asked to present the design of my project on a paper. Was asked how it can handle huge traffic in future. And what were my learnings during the project

Problem approach

Tip 1 : Always know everything about your project. Even if you contributed at frontend out backend only, have an understanding of the overall project.

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