Zscaler interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

Zscaler
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2 rounds | 3 Coding problems

Interview preparation journey

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Preparation
Duration: 6 months
Topics: Data Structures, Algorithm, OOPS, Sql, logical reasoning , aptitude
Tip
Tip

Tip 1 : Stick on the basics 
Tip 2 : practice ds as much as you can

Application process
Where: Other
Eligibility: 7 CGpa
Resume Tip
Resume tip

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
AccentureDell TechnologiesHCL Technologies

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
Try solving now

2. Kevin’s stack problem

Easy
20m average time
80% success
0/40
Asked in companies
HSBCZscaler

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.

Try solving now
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

Which SQL keyword removes duplicate records from a result set?

Choose another skill to practice
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