Hortonworks Intern Interview Questions and Answers

Algorithms

Problem solving

Q1. Cyber security related
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Q1. Basic Scenario based questions
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25 basic aptitude asked from train,time and work

2 coding questions which was basic and medium questions

It was 2 coding questions of medium level

Q1. Longest substring with non repeating characters
Ans. 
Find the longest substring in a given string that does not contain any repeating characters.
• Use a sliding window approach to iterate through the string.

• Keep track of the characters seen so far using a set.

• Update the start and end indices of the window to find the longest substring.

• Return the length of the longest substring.
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Q2. Candy problem. There is similar question in geeks for geeks
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Questions from trees and linkedin

Q1. Question on dsa and on oops
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Q2. Reverse linked list with multiple approach
Ans. 
Reverse a linked list using multiple approaches.
• Iterative approach: Use three pointers to reverse the links between nodes.

• Recursive approach: Recursively reverse the rest of the list and adjust the links.

• Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.
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There were 2 questions to test our basic coding knowledge.

Q1. Some basic introduction followed by sort 2 arrays into a single array.
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Q1. Applications of various data structures.
Ans. 
Data structures are used in various applications like search algorithms, storage systems, and graph algorithms.
• Search algorithms like binary search use arrays and trees for efficient searching.

• Storage systems use data structures like hash tables and linked lists for organizing and accessing data.

• Graph algorithms like Dijkstra's algorithm use graphs and trees for solving complex problems.
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Q1. Some basic hr questions like tell me about yourself, what do you know about magicbricks,where do you see yourself in 5 years etc
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Q1. मुझसे सोशल मीडिया ट्रेंड्स, वीडियो notification के लिए कैप्शन (Verbiage) लिखवाया गया था। साथ ही मेरे बारे में कुछ सवाल किये गये थे।
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Q1. इस राउंड में खास कर मेरे बारे में सवाल था और इस कम्पनी के बारे में बताया गया और किस तरह से काम करना है, ये बताया गया उसके बाद सैलरी को लेकर मेरी क्या अपेक्षा है इसे भी पूछा गया। बेसिकली इस राउंड में सैलरी ...read more
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