Tesla Engineering Intern Interview Questions and Answers

Q1. HLD of BookMyShow
Ans. 
BookMyShow is a popular online ticketing platform for movies, events, and other entertainment.
• BookMyShow is a platform where users can book tickets for movies, events, plays, sports, etc.

• It provides information on upcoming events, movie showtimes, and venue details.

• Users can select seats, make payments, and receive e-tickets for their bookings.

• The platform also offers reviews, ratings, and recommendations for users to ...read more
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Easy to medium level of leet code

Q1. 1. Fibonacci series with recursion and without recursion 2. String Palindrome 3. Count all repeated numbers from the array
Ans. 
Answering questions related to Fibonacci series, string palindrome, and counting repeated numbers in an array.
• For Fibonacci series with recursion, write a function that calls itself to calculate the next number in the series.

• For Fibonacci series without recursion, use a loop to calculate the series.

• For string palindrome, compare characters from start and end of the string.

• To count all repeated numbers from the array, u
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Q1. 1.Given an array(0-based indexing), you have to find the max sum of i*A[i] where A[i] is the element at index i in the array. The only operation allowed is to rotate(clock-wise or counter clock-wise) the ...read more
Ans. 
Rotate array to find max sum of i*A[i]
• Rotate array to bring maximum element to front

• Calculate sum of i*A[i] for each rotation

• Keep track of maximum sum found
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Q1. 1.Oops concepts 2.Oops code 2.About Java Spring 3. Array stack questions 4.Project discussion
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Q1. Design Round : Design a Delivery Management system. Delivery agent allocation to the order. Track status(dispatched, collected, arrived, delivered) Track agent's movement Assign a new orders when comes ...read more
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Q1. Design email notification system
Ans. 
Design an email notification system for efficient communication.
• Identify the triggers for sending email notifications (e.g. new user registration, password reset)

• Design a user-friendly interface for users to manage their notification preferences

• Implement a system to track email delivery and user engagement

• Consider personalization options for email content based on user behavior

• Ensure compliance with data protection reg
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Was asked to build a REST API for inventory management of a store using Django REST framework.

Q1. Had a discussion regarding my project and resume with the founder, he paid attention to detail and was polite and supportive.
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Coding Test and Code review comprehension Round

Q1. Questions related to CDN, Recommendation Engine and Designing a system that is online (Twitter/Instagram etc)
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Q1. Questions related to DNS Resolution, Database related Questions and System Design
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Q1. Queries related to how to scale a service, and DB Normalizations
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Q1. This was a Cultural Fit Round
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Round duration - 150 minutes
Round difficulty - Medium

The interview was scheduled at 6 pm and the duration of the interview was 1.5 hrs but went for around 2.5 hrs. The interviewer started with a brief intro about me. Asked me some coding questions. After coding questions he started asking questions on dbms like difference between sql and no sql, what is horizontal and vertical scaling and when we use them. Then some questions on computer networks like how web browsers works, different between http and HTTPS, what is TCP. After this he asked about my projects and the technology I worked on during the intern.

Q1. 
Snake and Ladder Problem Statement
Given a Snake and Ladder Board with 'N' rows and 'N' columns filled with numbers from 1 to N*N starting from the bottom left of the board, and alternating direction each...read more
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Q2. 
Deletion In Doubly Linked List
You are given a Doubly Linked List with 'N' positive integers. Your task is to delete a node at a given position 'POS' in this linked list.
Input:
The first line of input ...read more
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Round duration - 20 minutes
Round difficulty - Easy

Q1. How would you go about building (from requirement gathering till launching) a product like Khatabook?
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