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Blackbuck Insights
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Blackbuck Insights Data Science Engineer Interview Questions and Answers
Blackbuck Insights Data Science Engineer Interview Experiences
1 interview found
Anonymous
I applied via Naukri.com and was interviewed in Apr 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Sql and coding
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
(2 Questions)
- Q1. Tell me about spark internal memory management?
- Ans.
Spark internal memory management involves allocating memory for storage, execution, and caching.
Spark uses a unified memory management system that dynamically allocates memory between storage and execution.
Memory is divided into regions for storage (cache) and execution (task memory).
Spark also uses a spill mechanism to write data to disk when memory is full, preventing out-of-memory errors.
Users can configure memory a...
- Q2. Difference between heap and non heap memory?
- Ans.
Heap memory is used for dynamic memory allocation, while non-heap memory is used for static memory allocation.
Heap memory is used for storing objects created at runtime, while non-heap memory is used for storing class files and method information.
Heap memory is managed by garbage collector for automatic memory management, while non-heap memory is managed by the JVM.
Examples of heap memory include objects created using ...
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. What is DHCP,DNS,etc
- Ans.
DHCP is a protocol that assigns IP addresses to devices on a network. DNS is a system that translates domain names to IP addresses.
DHCP assigns IP addresses to devices on a network
DNS translates domain names to IP addresses
DHCP reduces the need for manual IP address configuration
DNS allows users to access websites using domain names instead of IP addresses
- Q2. Dynamics host configuration Protocol Domain Name System
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. There was so many questions asked to me in interview, i had gone through four different rounds of interview.
- Q2. I was well prepared for the interview. I didn't know that there will be four rounds. I have faced them confidently with accurate answers within a time. They had impressed on my confidence and my verbal com...
Interview Questionnaire
1 Question
- Q1. How to optimise php and mysql query
- Ans.
Optimizing PHP and MySQL queries involves using indexes, optimizing queries, and reducing data transfer.
Use indexes to speed up data retrieval
Optimize queries by avoiding unnecessary joins and subqueries
Reduce data transfer by selecting only necessary columns
Use caching to avoid repetitive queries
Avoid using SELECT *
Use EXPLAIN to analyze query performance
Skills evaluated in this interview
(1 Question)
- Q1. Tell me about yourself.
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Dec 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Tree, bfs and dfs and dynamic programming is asked mainly, medium level leetcode questions
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Aug 2021. There were 3 interview rounds.
Assignment to develop a prototype
(3 Questions)
- Q1. Face to face questions
- Q2. Java Question Technical & coding
- Q3. Mongodb & Mysql Question
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Will be given Requirement to write code for Restraunt. Based on that have write code for delivering orders by delivery boys.
(1 Question)
- Q1. OOPS Concepts, Java Basics, Collections, MultiThreading
Interview Preparation Tips
- Java
- OOPS
- MySQL
- Pattern Programming
Selected
I applied via LinkedIn and was interviewed before Jun 2023. There were 3 interview rounds.
(1 Question)
- Q1. About the experience and what I did
Give me a palindrom of string related question
(1 Question)
- Q1. System design based on how to scale something
- Ans.
To scale a system, consider horizontal and vertical scaling, load balancing, caching, database sharding, and microservices architecture.
Implement horizontal scaling by adding more instances of the application to distribute the load.
Consider vertical scaling by upgrading the hardware resources of the existing server.
Use load balancing to evenly distribute incoming network traffic across multiple servers.
Implement cachin...
Skills evaluated in this interview
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