# Zscaler Interview Questions

Zscaler is a cloud security company, with headquarters in San Jose, California. It offers a platform for businesses that move their data to the cloud, with employees who work remotely.

It has got a 4.5* rating on Glassdoor and is considered one of the best product-based companies. It is highly regarded for its work-life balance.

They provide good training as well which will be beneficial in future too. You can practice the below questions collected from Zscaler Interview Experience for the interview. We have collected past frequently asked questions from Zscaler Interview Experience for your reference.

## ZScaler String Questions

Question 1. Smallest Palindrome after Replacement Problem Statement In the “Smallest Palindrome after Replacement” problem we have given the input string contains lower case alphabets characters and dots(.). We need to replace all dots with some alphabet character in such a way that the resultant string becomes a palindrome. The palindrome should be lexicographically smallest. Input ...

## ZScaler Stack Questions

Question 2. Reversing the First K elements of a Queue In reversing the first K elements of a queue problem we have given a queue and a number k, reverse the first k elements of a queue using standard operations of the queue. Examples Input: queue = 10 -> 15 -> 31 -> 17 -> 12 -> 19 -> 2 ...

## ZScaler Queue Questions

Question 3. Implementation of Deque using Doubly Linked List Problem Statement The problem “Implementation of Deque using Doubly Linked List” states that you need to implement the following functions of Deque or Doubly Ended Queue using a doubly linked list, insertFront(x) : Add element x at the starting of Deque insertEnd(x) : Add element x at the end of ...

Question 4. Reversing the First K elements of a Queue In reversing the first K elements of a queue problem we have given a queue and a number k, reverse the first k elements of a queue using standard operations of the queue. Examples Input: queue = 10 -> 15 -> 31 -> 17 -> 12 -> 19 -> 2 ...

## ZScaler Other Questions

Question 5. Day of the Year Leetcode Solution Problem statement In the problem ” Day of the Year” we are given a string that contains a date in the format YYYY-MM-DD. Our task is to return the day number of that date. If the given date is 2020-01-05. This is 5th January 2020 which is the 5th day ...

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