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Koo App Interview Questions and Answers
Koo App Interview Experiences
5 interviews found
Anonymous
Selected
I applied via Campus Placement and was interviewed before Jun 2023. There were 3 interview rounds.
I have been asked 1 DSA question and 1 SQL question as the company came for campus recruitment.
(3 Questions)
- Q1. Discussion on Java and its fundamentals.
- Q2. Dynamic Programming question.
- Q3. Discussion over projects.
(1 Question)
- Q1. Basic HR questions like why you want to join us and all.
Sde1 Interview Questions asked at other Companies
Vikas Suthar
(2 Questions)
- Q1. Basic Kotlin and Android
- Q2. MVVM clean Architecutres
(3 Questions)
- Q1. About Jetpack Compose
- Q2. Kotlin Coroutines
- Q3. Android App Security
Senior Android Developer Interview Questions asked at other Companies
(1 Question)
- Q1. Tell us about your previous work experiences.
To check how customer centric
(1 Question)
- Q1. Salary discussion
Team Lead Interview Questions asked at other Companies
Selected
I applied via Approached by Company and was interviewed in Dec 2022. There were 4 interview rounds.
(1 Question)
- Q1. What are you looking for at Koo?
- Ans. Fast moving, growth opportunity, big impact and responsibilities
(3 Questions)
- Q1. 1. Max Sum subarray 2. Detect loop in linked list
- Ans.
Two technical questions related to algorithms and data structures.
Max Sum subarray: Find the contiguous subarray with the largest sum. Kadane's algorithm is a popular solution.
Detect loop in linked list: Use two pointers, one moving at twice the speed of the other. If they meet, there is a loop.
- Q2. 1. How is session authenticated in facebook and other websites when we login? 2. How to store large databases? Hashing related.
- Ans.
Session authentication in websites and storing large databases using hashing.
Session authentication in websites involves creating a unique session ID for each user upon login and storing it in a cookie or server-side session storage.
The session ID is then used to authenticate subsequent requests from the user.
Large databases can be stored using hashing techniques such as sharding, consistent hashing, and hash tables.
Sh...
- Q3. 1. Binary Search tree and B+ trees difference
- Ans.
Binary search trees are used for searching and sorting data, while B+ trees are used for indexing and storing data.
Binary search trees have a maximum of two children per node, while B+ trees have multiple children per node.
Binary search trees are best for small datasets, while B+ trees are better for large datasets.
Binary search trees have a faster search time, while B+ trees have a faster insertion and deletion time.
B...
(2 Questions)
- Q1. 1. Dynamic Programming on Longest Pallindromic Subsequence 2. Greedy Algorithm for Job Scheduling 3. DFS related graph problem
- Q2. 1. Current company role 2. Most Challenging aspect
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Skills evaluated in this interview
Software Engineer II Interview Questions asked at other Companies
Koo App interview questions for popular designations
I applied via LinkedIn and was interviewed before Sep 2021. There was 1 interview round.
(2 Questions)
- Q1. Guys , this operation manager only ask your experience-based question.
- Q2. Make sure what you guys mentioned on your CV, please elaborate properly with projects.
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I applied via Indeed and was interviewed before Jun 2019. There were 4 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Business problems and case studies
- Q2. Guesstimates
- Q3. Experience to date
- Ans.
I have 3 years of experience working as a Data Analyst in the finance industry.
Analyzed financial data to identify trends and make recommendations
Created reports and dashboards using tools like Tableau and Excel
Collaborated with cross-functional teams to improve data quality and accuracy
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Feb 2021. There were 2 interview rounds.
Market related question
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed before May 2022. There were 2 interview rounds.
(2 Questions)
- Q1. How can we improve the performance of a Front End System
- Ans.
Improving Front End System Performance
Optimize images and reduce their size
Minimize HTTP requests and use caching
Use lazy loading for images and videos
Reduce the number of DOM elements
Use a Content Delivery Network (CDN)
Minimize the use of external scripts and plugins
Use asynchronous loading for scripts
Optimize CSS and JavaScript files
Use browser caching
Implement server-side rendering
- Q2. What is Event Loop and give an example on how it works.
- Ans.
Event Loop is a mechanism that allows JavaScript to handle multiple tasks simultaneously.
Event Loop is a part of JavaScript runtime that continuously checks the call stack and the task queue.
It prioritizes the tasks in the queue and pushes them to the call stack when it's empty.
This allows JavaScript to handle I/O operations and other asynchronous tasks without blocking the main thread.
Example: setTimeout() function ad...
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Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed before Feb 2023. There were 2 interview rounds.
- simple basic ios questions
(1 Question)
- Q1. Asked DSA array questions
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before Mar 2023. There were 3 interview rounds.
Kadance algorithm and find the middle of the linklist
More on java and Python based coding questions
(4 Questions)
- Q1. Behavioural questions were asked
- Q2. What are your expectations from this job
- Q3. What are your plans ahead
- Q4. Where do you see yourself in 5 years ahead
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