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OLX Desktop Support Engineer Interview Questions and Answers
OLX Desktop Support Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Walk-in and was interviewed in Aug 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Knowlesge about IT
- Q2. Experience required
Interview Preparation Tips
Interview questions from similar companies
I applied via Campus Placement and was interviewed before Nov 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Data Structures
- Q2. Algorithms knowledge
Interview Preparation Tips
I applied via Company Website and was interviewed in Aug 2021. There were 2 interview rounds.
E-commerce
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Given a 2d matrix with some D doors and W walls, we need fill distance matrix with minimum distance to the nearest door
- Ans.
Given a 2D matrix with doors and walls, fill distance matrix with minimum distance to the nearest door.
Iterate through the matrix and find the doors
Use Breadth-First Search (BFS) to calculate the minimum distance from each cell to the nearest door
Update the distance matrix with the minimum distances
- Q2. Given a read-only array we want to find kth smallest element in unordered array with O(1) space
- Ans.
Find kth smallest element in unordered array with O(1) space
Use the QuickSelect algorithm to partition the array and find the kth smallest element
Choose a pivot element and partition the array into two subarrays
Recursively partition the subarray that contains the kth smallest element
Repeat until the pivot element is the kth smallest element
Time complexity: O(n) average case, O(n^2) worst case
- Q3. Design question
- Q4. Find friends of friend who already are not friends with you
- Ans.
To find friends of friends who are not already friends with you, we can first find your friends and then their friends excluding yourself and your friends.
Get your list of friends
For each friend, get their list of friends
Exclude yourself and your friends from the final list of friends of friends
Interview Preparation Tips
Experience: It started with an informal talk after he gave his introduction. We talked about the cyclone that was going to be there and what I did in my internship and my previous projects. Then we moved to questions. After solving both questions he asked if I had questions.
Tips: Just walk the interviewer through the solution you're proposing.
Round: Other Interview
Experience: He started with a design question with how to stream an image such that all clients see the same image at the same time. You need to take care of delays, network problems. He kept on adding new elements like compression, streaming, utc time related issues, client rendering delays and so on.
Round: Other Interview
Experience: This was bar-raiser round.
Skills: Design, Algorithms And Data Structures, Graph Theory
College Name: IIT Madras
Skills evaluated in this interview
I appeared for an interview before Apr 2021.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
It started with an informal talk after he gave his introduction. We talked about the cyclone that was going to be there and what I did in my internship and my previous projects. Then we moved to questions. After solving both questions he asked if I had questions.
- Q1.
Kth Largest Element Problem Statement
Given an array of distinct positive integers and a number 'K', your task is to find the K'th largest element in the array.
Example:
Input:
Array: [2,1,5,6,3,8], K ... - Ans.
Find the Kth largest element in an array of distinct positive integers.
Sort the array in non-increasing order
Return the Kth element from the sorted array
Handle multiple test cases
- Q2.
Orange Rotting Problem Statement
Consider a grid containing oranges. Each cell in this grid can hold one of three integer values:
- Value 0: Represents an empty cell.
- Value 1: Represents a fresh orang...
- Ans.
The task is to determine the minimum time required for all fresh oranges to become rotten in a grid.
Create a queue to store the rotten oranges and their time of rotting.
Iterate through the grid to find the initial rotten oranges and add them to the queue.
Perform BFS by popping each rotten orange from the queue, rot adjacent fresh oranges, and add them to the queue with updated time.
Continue until the queue is empty, ke...
Round duration - 45 minutes
Round difficulty - Easy
This was a design round.
Interview Preparation Tips
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.
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.
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Dec 2015. There were 5 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Reverse a linked list
- Ans.
Reverse a linked list
Iteratively swap the next and previous pointers of each node
Use three pointers to keep track of the current, previous, and next nodes
Update the head pointer to the last node after reversing
- Q2. Object Oriented Programming
- Q3. Database questions
- Q4. What do you like about this company
- Ans.
I appreciate the company's commitment to innovation and employee development.
Strong focus on innovation in software development
Opportunities for professional growth and development
Positive company culture and work environment
- Q5. Why do you want to work here
- Ans.
I am impressed by the company's innovative projects and collaborative work environment.
Impressed by innovative projects
Desire to work in a collaborative environment
Excited about potential for growth and learning opportunities
- Q6. Long term goals
Interview Preparation Tips
Experience: Simple aptitude test where they filtered out 2/3 of the applicants (12-15 selected out of 30)
Duration: 1 hour
Total Questions: 40
Round: Technical Interview
Experience: General questions about you, your projects etc.
The linked list question, you can write in any language you like.
OOP concepts like how it is implemented in your favourite language.
Round: Technical Interview
Experience: Your thoughts on designing a database for a company that aggregates jobs from any available source.
The schema for the database and your reason for it.
Round: HR Interview
Experience: Standard HR questions
College Name: Shiv Nadar University, Dadri
Skills evaluated in this interview
I appeared for an interview in Sep 2016.
Interview Questionnaire
9 Questions
- Q1. Questions on DBMS like find the 2nd maximum salary of employee
- Q2. A table was given and i need Normalize it
- Q3. join, groupby queries on a given table
- Q4. Question related to Computer Networks like how internet works
- Q5. What is web server and application server
- Ans.
Web server handles HTTP requests and responses, while application server executes application logic.
Web server serves static content like HTML, CSS, JS files
Application server executes dynamic code like Java, Python, Ruby
Web server communicates with client, application server communicates with database
Examples of web servers: Apache, Nginx, IIS
Examples of application servers: Tomcat, JBoss, WebSphere
- Q6. Coding question to print a given pattern
- Q7. Proper discussion on my projects that were mentioned in the resume. They usually ask to make class diagram, ER diagram of project etc.
- Q8. Firstly HR asked to introduce yourself
- Q9. Then he asked simple questions like why u want to join this company, my family background, asked about hobbies, academic achievements etc
Interview Preparation Tips
Experience: Two coding questions were given in the 1st round
1)find nodes at kth distance from root node
2)arrange a given array in min-max sequence
Duration: 1 hour
Total Questions: 2
College Name: Thapar University, Patiala
Skills evaluated in this interview
I applied via Referral and was interviewed in May 2020. There were 9 interview rounds.
Interview Questionnaire
8 Questions
- Q1. IT Solutions provider
- Q2. Brhamanc IT Information Technology World Asia Pacific region India Tamilnadu Coimbatore 641108
- Q3. Right now
- Q4. Salary will have been working on my phone
- Q5. So Exclusive interview on my phone
- Q6. The new version of the best of luck
- Q7. Hdca and Core Java Programming language
- Q8. For example Infosystem on the best of luck
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Questions related to Data Structures like Array, Stack, Queue.. etc., Questions related to Algorithms Like Dynamic Programming and Questions from DBMS.
I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. DS Algo Questions on Trees. Leadership Principles
Interview Preparation Tips
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OLX Desktop Support Engineer Interview Process
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