Bain & Company Associate Engineer Interview Questions and Answers

Sql questions and mcq

Q1. Sql window functions
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Q2. Sql theory
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2 questions were asked in coding round, both are medium level

Q1. Asked about projects, one simple coding question to solve in monitor. since, I'm from ece they asked about latest trends in electronics,etc..
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Q2. Role of electronics in automotive industry
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Q3. Chip manufacturing india
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Q4. Problems faced during working for project
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Q5. How you overcome that
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Question from maths reasoning andc

Two leetcode medium questions

Q1. DSA question about binary search
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Q2. Situation related questions about work culture
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Q1. What is Spark What is hadoop
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Spark is a fast and general-purpose cluster computing system.
• Spark is designed for speed and ease of use in data processing.

• It can run programs up to 100x faster than Hadoop MapReduce.

• Spark provides high-level APIs in Java, Scala, Python, and R.

• It supports various workloads such as batch processing, interactive queries, streaming analytics, and machine learning.

• Spark can be used standalone, on Mesos, or on Hadoop YARN
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Q2. What is hive in big data
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Hive is a data warehouse infrastructure built on top of Hadoop for providing data summarization, query, and analysis.
• Hive uses a SQL-like language called HiveQL to query and manage large datasets stored in Hadoop

• It allows users to write complex queries to analyze and process data

• Hive organizes data into tables, partitions, and buckets for efficient querying

• It is commonly used for data warehousing, data analysis, and da
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Q3. Which file format is best
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There is no one-size-fits-all answer to which file format is best, as it depends on the specific use case and requirements.
• Consider the type of data being stored or transmitted (e.g. text, images, videos, etc.)

• Take into account compatibility with software and devices that will be used to access the files

• Evaluate factors such as file size, compression, and quality requirements

• Common file formats include PDF for document...read more
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Q1. How will you design ingestion pipeline
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Designing ingestion pipeline involves defining data sources, data processing steps, data storage, and data delivery mechanisms.
• Identify data sources such as databases, APIs, files, etc.

• Define data processing steps like data extraction, transformation, and loading (ETL).

• Choose appropriate data storage solutions like databases, data lakes, or data warehouses.

• Implement data delivery mechanisms for downstream applications ...read more
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Q1. In a string reverse the small letters to capital and caps to small
Ans. 
Convert small letters to capital and caps to small in a string
• Iterate through each character in the string

• Check if the character is a small letter or a capital letter

• Convert small letters to capital and caps to small using ASCII values
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Q2. Description of auth flow
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Auth flow is the process of verifying a user's identity before granting access to a system or application.
• User enters credentials (username and password)

• Credentials are sent to server for verification

• Server checks credentials and generates a token for the user

• Token is sent back to user for future authentication
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Q3. Walk through your cv
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Q1. What is you previous experience in Data Analytics
Ans. 
I have 2 years of experience in data analytics, including working with large datasets and using tools like Python and SQL.
• 2 years of experience in data analytics

• Proficient in working with large datasets

• Skilled in using Python and SQL for data analysis
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