Nubewell Full Stack Developer Interview Questions and Answers

Machine Coding of Google Calendar

Machine Coding of MP3 Player

Q1. Find Duplicates problem
Ans. 
Find duplicates in an array of strings
• Iterate through the array and store each element in a hash set

• If an element is already in the hash set, it is a duplicate

• Return a list of all duplicates found
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Q1. Why Simpl? and compensation
Ans. 
Simpl offers a collaborative and innovative work environment with competitive compensation.
• Simpl values teamwork and creativity in software development

• Competitive compensation package offered to attract top talent

• Opportunities for growth and learning through challenging projects
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Q1. Logical Task based on backend and analytics
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Q2. Make a website clone
Ans. 
To clone a website, you need to replicate its design, functionality, and content.
• Study the website's design and layout

• Identify the technologies used for development

• Replicate the functionality and features

• Ensure the content is accurate and up-to-date
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Electric Vehicals in India

Very simple basic apptitude no need of prepration

Q1. Personal details
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Q2. Company details
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Q1. Oops concept and basic coding concept
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Q2. Basic data structure
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Q1. 2 day process at gurugram office
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Q2. Levenshtein Algorithm and csv task
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Its was data structure and algorithm and SQL round 4 question of dsa and 2 question of sql

Q1. How does OTP less work make a systematic diagram for it/
Ans. 
OTP less work eliminates the need for one-time passwords for authentication.
• OTP less work uses alternative methods like biometrics, push notifications, or hardware tokens for authentication.

• It provides a more seamless and user-friendly authentication experience.

• Examples include fingerprint scanning on smartphones or security keys for two-factor authentication.
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Q1. Everything related to yourself.
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Mangaer asked me to integrate an api

Q1. Salary negotions was done on the second round
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3 Coding question medium level

Q1. Asked 3 coding queston and some basis CS questions
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50 questions in 12 minutes mostly test your arthimetic, logical knowledge.

3 coding questions in 90 mins, 1st one is from arrays an easy question, 2nd one is related to stacks and queues relatively harder and last one is hard which i am also unable to attempt. I cracked the first two questions and my solutions passed all the test cases.

Q1. Difference between sorting algorithms
Ans. 
Sorting algorithms are methods used to arrange elements in a specific order.
• Different sorting algorithms include bubble sort, selection sort, insertion sort, merge sort, quick sort, and heap sort.

• Some algorithms are more efficient than others depending on the size of the data set and the initial order of the elements.

• For example, quick sort is generally faster than bubble sort for large data sets.
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Q2. BFS and DFS in trees and imlementing them
Ans. 
BFS and DFS are traversal algorithms used in trees. BFS explores level by level, while DFS explores depth first.
• BFS (Breadth-First Search) visits nodes level by level, using a queue. Example: traversing a binary tree level by level.

• DFS (Depth-First Search) explores as far as possible along each branch before backtracking. Example: in-order traversal of a binary tree.
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Q3. Sql questions and database questions
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Q1. Tell me about yourself
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Q2. Explain the college life
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