Zscaler interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Zscaler
2 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 6 months
Topics: Data Structures, Algorithm, OOPS, Sql, logical reasoning , aptitude
Tip 1 : Stick on the basics
Tip 2 : practice ds as much as you can
Application process
Where: Other
Eligibility: 7 CGpa
Tip 1 : keep it of one page
Tip 2 : don't put false things on resume and add atleast 1 good project.
Interview rounds
01
Round
Medium
Face to Face
Duration90 minutes
Interview date14 Oct 2017
Coding problem2
Interviewer was cool, he started with basics of c and c++ and oops concept and extended to data structures .
1. Count Subsequences
Moderate
30m average time
60% success
0/80
Asked in companies
You have been given an integer array/list 'ARR' of size 'N'. Your task is to return the total number of those subsequences of the array in which all the elements are equal.
A subsequence of a given array is an array generated by deleting some elements of the given array with the order of elements in the subsequence remaining the same as the order of elements in the array.
Note :
As this value might be large, print it modulo 10^9 + 7
2. Kevin’s stack problem
Easy
20m average time
80% success
0/40
Asked in companies
Kevin has recently learned the concept of “STACK”. During his practice, he got stuck in a problem where he has to reverse a string ‘S’ using a stack. So, he appoints you to help him in reversing the string ‘S’. All you have to do is to find the reversed string.
Please reverse the string using a stack so that Kevin gets to know where he is getting wrong after seeing your solution. It is guaranteed that strings will only be composed of English alphabets.
02
Round
Easy
HR Round
Duration30 minutes
Interview date14 Oct 2017
Coding problem1
It was an easy round interviewer basically asked questions about family, goals and education background.
1. Basic HR Questions
Introduce yourself.
What are your hobbies.
Family background.
Why this job?
Problem approach
Tip 1 : Be polite and honest
Tip 2 : do not fake anything
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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