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Zolo SDE Interview Questions and Answers

Updated 21 Oct 2024

Zolo SDE Interview Experiences

1 interview found

SDE Interview Questions & Answers

user image Anonymous

posted on 21 Oct 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Not Selected

I applied via Campus Placement and was interviewed in Sep 2024. There were 4 interview rounds.

Round 1 - Coding Test 

Easy coding question

Round 2 - Technical 

(1 Question)

  • Q1. Find number whose frequency is greater than n/2
  • Ans. 

    Use Boyer-Moore Majority Vote Algorithm to find number with frequency greater than n/2.

    • Iterate through array, keeping track of candidate and count

    • If count becomes 0, update candidate to current element

    • Increment count if current element is candidate, decrement otherwise

    • Verify candidate's frequency at the end to ensure it is greater than n/2

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Project Discussion
Round 4 - HR 

(1 Question)

  • Q1. Difference between HTTP and HTTPS
  • Ans. 

    HTTP is unsecured protocol while HTTPS is secured protocol using SSL/TLS encryption.

    • HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure.

    • HTTP operates on port 80, while HTTPS operates on port 443.

    • HTTPS encrypts the data transferred between the client and the server using SSL/TLS, while HTTP does not provide encryption.

    • HTTPS provides authentication of the website's ident...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Know every thing from resume

Skills evaluated in this interview

Interview questions from similar companies

SDE Interview Questions & Answers

NoBroker user image Anonymous

posted on 2 Sep 2021

I applied via Other and was interviewed in Aug 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Design BookMyShow, and focused more on how you would design the seat matrix.

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus more on the class design and the DB schema

SDE Interview Questions & Answers

Swiggy user image Anonymous

posted on 22 Jun 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

It had 9 uqestions , one problem solving , one SQL , one API and 6 mcq

Round 2 - Assignment 

Easy assignment , if you hav eOOps knowledge you can do it

I was interviewed before Apr 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 45 minutes
Round difficulty - Easy

This was a test where 2 coding questions were to be solved in 45 minutes.

  • Q1. 

    Excel Column Number Conversion

    Given a column title as it appears in an Excel sheet, your task is to return its corresponding column number.

    Example:

    Input:
    S = "AB"
    Output:
    28
    Explanation:

    The seq...

  • Ans. 

    Convert Excel column title to corresponding column number.

    • Iterate through the characters in the input string from right to left

    • Calculate the value of each character based on its position and multiply by 26^index

    • Sum up the values to get the final column number

  • Answered by AI
  • Q2. 

    Check Permutation Problem

    Determine if two given strings, str1 and str2, are permutations of each other.

    Explanation:

    Two strings are permutations of each other if the characters of one string can be re...

  • Ans. 

    Check if two strings are permutations of each other.

    • Create character frequency maps for both strings.

    • Compare the frequency maps to check if they are permutations.

    • Handle edge cases like empty strings or strings of different lengths.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAPropTiger interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

I was interviewed before Feb 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

It comprised of general aptitude questions and two coding questions. It was an offline test.

  • Q1. 

    N Queens Problem

    Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.

    Explanation:

    A queen can attack another queen if they ar...

  • Ans. 

    The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard where no two queens threaten each other.

    • Use backtracking algorithm to explore all possible configurations.

    • Keep track of rows, columns, and diagonals to ensure queens do not attack each other.

    • Generate and print valid configurations where queens are placed safely.

    • Consider constraints and time limit for efficient solution.

    • Exam...

  • Answered by AI
  • Q2. 

    Sort 0 1 2 Problem Statement

    Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.

    Input:

    The first line contains an integer 'T' representing the n...
  • Ans. 

    Sort an integer array containing only 0s, 1s, and 2s in linear time complexity.

    • Use three pointers to keep track of the positions of 0s, 1s, and 2s in the array.

    • Iterate through the array and swap elements based on the values encountered.

    • Achieve sorting in a single scan over the array without using any extra space.

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

After having a technical discussion about my CV. He gave me two questions to code.

  • Q1. 

    Ninja and Substrings Problem Statement

    Ninja has to determine all the distinct substrings of size two that can be formed from a given string 'STR' comprising only lowercase alphabetic characters. These su...

  • Ans. 

    Find all unique contiguous substrings of size two from a given string.

    • Iterate through the string and extract substrings of size two

    • Use a set to store unique substrings

    • Return the set as an array of strings

  • Answered by AI
  • Q2. 

    Cycle Detection in a Singly Linked List

    Determine if a given singly linked list of integers forms a cycle or not.

    A cycle in a linked list occurs when a node's next points back to a previous node in the ...

  • Ans. 

    Detect if a singly linked list forms a cycle by checking if a node's next points back to a previous node.

    • Traverse the linked list using two pointers, one moving one step at a time and the other moving two steps at a time.

    • If the two pointers meet at any point, there is a cycle in the linked list.

    • If one of the pointers reaches the end of the list (null), there is no cycle.

  • Answered by AI
Round 3 - HR 

(1 Question)

Round duration - 30 minutes
Round difficulty - Easy

This was supposed to be the HR round but out of surprise the interviewer started by giving me a question to code. 
After I approached this question with the right solution he just asked about my family. After that he said to wait. After half an hour the results were announced. A total of three students were hired and I was amongst one of them.

  • Q1. 

    Balanced Parentheses Combinations

    Given an integer N representing the number of pairs of parentheses, find all the possible combinations of balanced parentheses using the given number of pairs.

    Explanati...

  • Ans. 

    Generate all possible combinations of balanced parentheses for a given number of pairs.

    • Use recursion to generate all possible combinations of balanced parentheses.

    • Keep track of the number of open and close parentheses used in each combination.

    • Return the valid combinations as an array of strings.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMagicbricks interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. People of Anarock will ask mostly for the experience.

I applied via Naukri.com and was interviewed before Jun 2020. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Many questions about sales.

Interview Preparation Tips

Interview preparation tips for other job seekers - Great
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Brief about your self
  • Q2. Sales experience
  • Ans. 

    I have over 5 years of sales experience in various industries, consistently exceeding targets and building strong client relationships.

    • Managed a portfolio of key accounts, increasing sales by 20% year over year

    • Implemented successful sales strategies resulting in a 30% growth in revenue

    • Utilized CRM software to track leads and follow up with prospects effectively

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Oct 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Are you Flexible enough to work with in a city
  • Q2. What are the most important aspects of sales
  • Ans. 

    The most important aspects of sales include building relationships, understanding customer needs, effective communication, and closing deals.

    • Building relationships with customers to gain trust and loyalty

    • Understanding customer needs and providing solutions that meet those needs

    • Effective communication to convey the value of products or services

    • Closing deals by overcoming objections and negotiating terms

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and sincere
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Past work experience
  • Q2. CP’s whom I have rapport with

Zolo Interview FAQs

How many rounds are there in Zolo SDE interview?
Zolo interview process usually has 4 rounds. The most common rounds in the Zolo interview process are Technical, HR and Coding Test.
What are the top questions asked in Zolo SDE interview?

Some of the top questions asked at the Zolo SDE interview -

  1. find number whose frequency is greater than ...read more
  2. Difference between HTTP and HT...read more
  3. Project Discuss...read more

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Zolo SDE Interview Process

based on 1 interview

Interview experience

4
  
Good
View more

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