Sarvatra Technologies Technical Support Engineer Interview Questions and Answers

Screening round was a 1 hour coding test. Mostly non leetcode style where the question is incremental - Eg. Identify a pattern in a given text value and extract it then perform subsequent transformations. There is no right or wrong its just how well you are able to do the task.

Q1. Resume related system design deep dive
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Another round similar to the first one with an incremental coding test. Question was very lengthy.

Q1. SQL database and you need to find out what is wrong with the data
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Q1. Another coding round where you need to go clone a repo and extend an existing feature using the libraries in the documentation provided.
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It was 30 min coding test and question was from easy level DSA question

Q1. Difference between react and next
Ans. 
React is a JavaScript library for building user interfaces, while Next is a framework for building server-side rendered React applications.
• React is a JavaScript library for building user interfaces.

• Next is a framework for building server-side rendered React applications.

• Next provides features like server-side rendering, static site generation, and routing out of the box.
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Q2. What is Nodejs and its event loop
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Node.js is a runtime environment that allows you to run JavaScript on the server side.
• Node.js is built on Chrome's V8 JavaScript engine.

• It uses an event-driven, non-blocking I/O model.

• The event loop is responsible for handling asynchronous operations in Node.js.

• Example: Reading a file asynchronously in Node.js using fs module.
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Machine coding.
Code structure, naming, best practices are more important than time or space complexity.

Same as Round 1, except more complex problem statement

Q1. Integration round. Given a library, do some operations with it, i.e. pull specific data point from file, make an POST call using different data point etc.
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Q1. Given a codebase, fix a specific bug
Ans. 
I would start by reproducing the bug, analyzing the code, identifying the root cause, implementing a fix, testing the fix, and finally deploying it.
• Reproduce the bug by following the steps that lead to the issue.

• Analyze the code surrounding the bug to understand the context and potential causes.

• Identify the root cause of the bug by debugging and tracing the code execution.

• Implement a fix by making the necessary code ch...read more
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Q1. Standard HLD/LLD design problem
Ans. 
HLD focuses on overall system architecture, while LLD delves into specific implementation details.
• HLD includes components, modules, interfaces, and dependencies.

• LLD involves detailed class diagrams, data structures, algorithms, and database schema.

• Example: HLD may outline a system using microservices architecture, while LLD may specify how each microservice communicates and stores data.
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LLD for load balancer

Q1. API integrations, integrate 3rd party API to visualize ride locations and generate images
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Solve a bug in JSON like parsing library

Q1. Java basics questions and java basic answers waste interview maximum element in an array array merged opps concepts basic puzzels.
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Q2. Opps concepts basic programs
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Exam to test reasoning and aptitude, and speed to answer them

Dsa question easy to medium level

Q1. Just culture fit question, and medium dsa questions
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Q2. Print pyramid from Fibonacci sequence
Ans. 
Print pyramid from Fibonacci sequence
• Generate Fibonacci sequence up to a certain number

• Use the Fibonacci numbers to create the pyramid structure

• Print each row of the pyramid with appropriate spacing
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Q3. Linked list sort
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Q4. Design SQL tables for library management system
Ans. 
Design SQL tables for library management system
• Create tables for books, authors, members, transactions, etc.

• Use primary and foreign keys to establish relationships between tables

• Include columns like book title, author name, member ID, due date, etc.
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Q5. Valid bracket dsa question
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Java , Spring, SQL questions asked without one data structure basic live coding question

Q1. What are your expectation to work with us
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Q2. How will you manage to improve with us
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It consist of 4 DSA ques and few quiz and opps concept based ques
1st was string based Medium level ques.
2nd was a ques based on 2 pointer
And other 2 was from Vector and Linked list easy ques

Q1. It was stock buy and sell ques on leetcode where we need to find Max profit and what day to buy and sell
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Q2. 2d array ques to print natural numbers in spiral form
Ans. 
Print natural numbers in spiral form using a 2D array.
• Create a 2D array with dimensions n x n.

• Initialize variables for row and column boundaries.

• Iterate through the array in a spiral pattern, filling in natural numbers.
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Q3. Hard level linked list ques
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