Gramener Data Science Engineer Interview Questions and Answers for Experienced

Q1. What are the work as data Science ?
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Q2. How to processs the data ?
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Q1. Mostly about projects ml, nlp, python code would be asked
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Q1. It would be focused on technical stuff in detail ml, nlp, deployments etc
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Q1. Organisation fit
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This is the round in which basic quant questions were asked

In this round basic 2 java questions were asked

In this round one topic was given and we need to discuss about that topic

Q1. What is java explain in detail
Ans. 
Java is a high-level, object-oriented programming language used to develop applications for various platforms.
• Java is platform-independent, meaning it can run on any platform with a Java Virtual Machine (JVM)

• It is known for its security features, such as the ability to run code in a sandbox environment

• Java is used for developing a wide range of applications, from web applications to mobile apps and games

• It is also used...read more
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Q2. What is searching and sorting
Ans. 
Searching is finding a specific item in a collection of items. Sorting is arranging items in a specific order.
• Searching involves looking for a specific item in a collection of items.

• Sorting involves arranging items in a specific order, such as alphabetical or numerical.

• Searching and sorting are commonly used in computer science and data analysis.

• Examples of searching algorithms include linear search and binary search.

• E...read more
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Q1. What is binary tree explain
Ans. 
A binary tree is a data structure consisting of nodes, where each node has at most two children.
• Nodes in a binary tree have a left and/or right child node.

• The topmost node is called the root node.

• Binary trees are used in search algorithms and data compression.

• Examples of binary trees include binary search trees and heap trees.
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Q1. What is your current location
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Q2. What is your salary expectations
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Duration is around 1 hour

Q1. 1. Basic programming concepts 2. OOP concepts and basic problem solving skills
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Q1. Programming question
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Q1. 1. Basic questions
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Q1. Second largest number in an array
Ans. 
Find the second largest number in an array of strings.
• Convert the strings to numbers for comparison.

• Sort the array in descending order.

• Return the second element in the sorted array.
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Q2. Pairs with given sum
Ans. 
Find pairs in an array that sum up to a given target value.
• Use a hash set to store the difference between the target value and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hash set.

• Return the pairs that sum up to the target value.
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