The Nest Group Interview Questions and Answers

30 mins was good sr engirneer was good andpolite wentwell

Q1. 30mins awas good sr engineer who interviwed me was polite and this is not true at all
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Q2. Why do you think binary search is importnt, how maps are implemented
Ans. 
Binary search is important for efficient searching and sorting. Maps are implemented using hash tables.
• Binary search reduces the search space by half with each iteration, making it faster than linear search.

• Maps are implemented using hash tables which use a hash function to map keys to indices in an array.

• Hash tables provide constant time complexity for insertion, deletion, and retrieval of key-value pairs.

• Collision re...read more
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Q1. Question’s about Sarfeasi Act,2002
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Q1. Brief summary about the projects in your resume.
Ans. 
Experienced in data analysis projects focusing on sales trends, customer behavior, and operational efficiency.
• Analyzed sales data to identify trends, resulting in a 15% increase in quarterly revenue.

• Developed a customer segmentation model that improved targeted marketing efforts, leading to a 20% increase in engagement.

• Created interactive dashboards using Tableau to visualize key performance indicators for stakeholders...read more
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Q2. Personal understanding about oil & gas industry.
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Q1. They asked specific questions about the industry i would be focused on
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Q1. How do you handle complex valuation metrics for technology companies
Ans. 
I analyze various factors such as revenue growth, market share, competitive landscape, and future prospects to determine the valuation of technology companies.
• I research and analyze financial statements, industry reports, and market trends.

• I consider the company's revenue growth, market share, and competitive landscape.

• I evaluate the company's future prospects and potential for innovation.

• I use various valuation method...read more
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2 coding questions based on DSA.

Q1. Easy coding problem.
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Q2. Medium coding problem.
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Q1. The interview emphasized team collaboration and work ethics, with a particular focus on my overall work experience at my previous company.
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Q2. What were your preferences regarding work locations, specifically your views on working from the office (WFO) compared to working from home (WFH)?
Ans. 
I prefer a mix of both working from the office and working from home.
• I believe in the benefits of face-to-face collaboration and communication that come with working from the office.

• At the same time, I appreciate the flexibility and productivity that working from home offers.

• I think a hybrid approach, where employees have the option to choose between WFO and WFH based on their tasks and preferences, is ideal.

• I have exp...read more
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Q1. Focus was on DS algo and scenario based coding questions
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Q2. Design skills and OS knowledge
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First round was a coding test which has 2 problem solving questions and 3 subjective questions based on C++

Q1. This is also based on problem solving and DSA. A small part will be OS and network.
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More of a subjective round, highly focused on OS, networking and computer architecture.

Q1. This round is with the HM, totally subjective. Highly focused on past experience, current projects etc.
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Q1. HR discussion mostly questions are related to past and current experience.
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3 coding questions

Q1. Design a Time Series Database
Ans. 
A time series database stores data points with timestamps for efficient retrieval and analysis.
• Choose a suitable data model for the database

• Use a time-based partitioning scheme for efficient data retrieval

• Implement compression techniques to reduce storage requirements

• Support for querying and analyzing time-based data

• Ensure data consistency and durability

• Consider scalability and high availability

• Examples: InfluxDB, Time
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