Jio Senior Data Scientist Interview Questions and Answers

Q1. What is arrow functions
Ans. 
Arrow functions are a concise way to write functions in JavaScript.
• Arrow functions are introduced in ES6.

• They have a shorter syntax compared to traditional function expressions.

• Arrow functions do not have their own 'this' keyword.

• They are best suited for non-method functions.

• Example: const add = (a, b) => a + b;
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Q1. Write code for parenthesis matching
Ans. 
Code to match parentheses in a string
• Use a stack to keep track of opening parentheses

• Iterate through the string and push opening parentheses onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the closing parenthesis
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Q1. Tell me about Hls ja
Ans. 
HLS stands for HTTP Live Streaming, a protocol used for streaming media over the internet.
• HLS breaks the media content into small chunks and delivers them over HTTP.

• It is widely used for streaming video and audio content on the internet.

• HLS allows adaptive bitrate streaming, where the quality of the video adjusts based on the viewer's network speed.

• Popular streaming services like Netflix and Hulu use HLS for delivering
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Q1. Related to Cmdb service now and utilities process
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Q1. Salary discussion and finalisation
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Q1. Current roles and responsibilities, Few queries to write, few questions related to DWH and what type of role you have done in past etc
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Q1. Managerial round mostly questions like what challenges did you face, how did you overcome on that, what was the major success / appreciation you got
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Q1. Like the common ones , why you skip the last job and what are the expectations of yours and the salary is this much are you ok with it like..
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Q1. They have asked me about postpaid benefits and asked me about to read a line and elaborate it.
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Q1. Not so specific..just the same ones English check and clean shave is must...
Ans. Yes I am able to maintain the grooming.
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Q1. Tell me about yourself and your previous company .
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Q2. Why you want to join vodafone.
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Q3. What are your salary expectation.
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Q4. How soon you will join us.
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Q1. Tell me about yourself
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Q1. When will you join us.
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Q1. Technical Questions relevant to your domain and your previous experience.
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Q1. This Round is with your manager and Questions relevant to behavior, self-confidence, technical in quick overview
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Q1. Relevant to experience and self confidence, salary Discussion and further process guidelines
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SQL query to find the top 5 employee having the max salary