Samsung Electro-Mechanics Machine Learning Scientist - Big Data/NLP Interview Questions and Answers

Round duration - 60 minutes
Round difficulty - Medium

Coding question was given.

Q1. 
Remove Vowels from a Given String
Given a string STR of length N, your task is to remove all the vowels present in that string and return the modified string.
Explanation:
English alphabets ‘a’, ‘e’, ‘i...read more
Ans. 
Remove vowels from a given string while maintaining the relative position of other characters.
• Iterate through each character in the string and check if it is a vowel (a, e, i, o, u).

• If the character is not a vowel, add it to the modified string.

• Return the modified string as the output.
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Round duration - 40 minutes
Round difficulty - Medium

It was first technical round with technical team.

Q1. What is the difference between MySQL and MongoDB?
Ans. 
MySQL is a relational database management system, while MongoDB is a NoSQL database.
• MySQL is a relational database, meaning it stores data in tables with rows and columns.

• MongoDB is a NoSQL database, storing data in collections of JSON-like documents.

• MySQL uses SQL for querying data, while MongoDB uses a query language similar to JSON.

• MySQL is ACID-compliant, ensuring data integrity, while MongoDB sacrifices some ACID ...read more
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Round duration - 30 minutes
Round difficulty - Medium

Tehnical round 2.
Here my projects and internships were evaluated

Q1. Can you explain your projects, including the technologies used and your approach?
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Round duration - 30 minutes
Round difficulty - Easy

HR questions were asked and remuneration details were given to me