LinkedIn Technical Specialist Interview Questions and Answers

Coding puzzle on hacker rank

Q1. Explain redux toolkit
Ans. 
Redux Toolkit is an official, opinionated, batteries-included toolset for efficient Redux development.
• Includes utilities like createSlice, createAsyncThunk, and createEntityAdapter for easier Redux setup

• Reduces boilerplate code and simplifies common Redux patterns

• Encourages best practices and helps developers write more maintainable code
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Q2. Explain use memo hook
Ans. 
memo hook is a React hook used for optimizing performance by memoizing the result of a function
• Memo hook is used to prevent unnecessary re-renders by caching the result of a function

• It is useful when a component re-renders frequently with the same props

• Example: const memoizedValue = useMemo(() => computeExpensiveValue(a, b), [a, b])
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Why are you here and why amazon

60 mins logic based round here

Q1. Based on manual testing and SQL
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Q2. BSC computer science
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Q3. Statistics and computer science
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Q1. Common interview questions. Technical questions and general questions.
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I was selected from TechGig after solving a problem.

Q1. There was 1 technical round where they asked about Linked List, Maps, core java questions.
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Q1. After Technical round, there were 2 more rounds where they mostly asked about System design.
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Please go through company website and what value add you can provide to company

Q1. Interview with Manager after lunch with Yahoo's team and potential candidate.
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Q1. Java basic concepts
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Q1. Java n java 8 concepts
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Q1. Manager round explain project
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Q1. Salary negotiation
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Q1. What is your day-to-day work look like?
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Q2. How to handle hard prod outages?
Ans. 
Handle hard prod outages by following incident management process and communicating effectively.
• Follow incident management process to identify and resolve the issue

• Communicate effectively with stakeholders and provide regular updates

• Prioritize critical systems and services

• Conduct post-mortem analysis to identify root cause and prevent future incidents
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Q3. How to do performance measurement for the database?
Ans. 
Performance measurement for a database can be done through various methods.
• Use benchmarking tools to measure query response time

• Monitor resource usage such as CPU and memory

• Analyze database logs for slow queries and optimize them

• Use load testing to simulate high traffic and measure performance

• Consider database indexing and partitioning for better performance
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