TetrusCorp Solutions Senior Software Engineer Interview Questions and Answers

DSA based round. Taken by external company. I would say to medium level questions asked.

Q1. This was based on LLD.
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Q2. Why SQL and not NoSQL?
Ans. 
SQL is preferred for structured data, transactions, complex queries, and ACID compliance.
• SQL is better for structured data and relationships between data.

• SQL is preferred for transactions and ensuring data integrity.

• SQL is more suitable for complex queries involving multiple tables.

• SQL databases provide ACID compliance for data consistency and reliability.
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Q1. Past project experience with a Tech Lead.
Ans. 
Worked on a project with a Tech Lead to develop a new feature for a web application.
• Collaborated closely with the Tech Lead to define project requirements and timelines

• Received guidance and mentorship from the Tech Lead on best practices and coding standards

• Participated in regular code reviews and discussions with the Tech Lead to ensure quality and consistency

• Implemented feedback and suggestions provided by the Tech L
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Q2. More into the problems I have solved previously and the working culture discussion.
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Q1. Design a paginated list of items, then improve efficiency
Ans. 
Design a paginated list of items and improve efficiency
• Implement lazy loading to fetch data only when needed

• Use caching to store previously fetched data for faster retrieval

• Optimize database queries to reduce load times
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Q1. Basics on Javascript, ReactJS
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C,c++ questions and two coding questions. basic mcq

Q1. Treeset, hashset difference
Ans. 
TreeSet and HashSet are both implementations of the Set interface in Java, but they have some key differences.
• TreeSet is a sorted set that maintains elements in ascending order, while HashSet does not guarantee any specific order.

• TreeSet uses a Red-Black tree data structure for storage, which allows for efficient retrieval of elements in sorted order.

• HashSet uses a hash table for storage, which provides constant-time p...read more
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Q2. Oops concept, dbms, programming questions
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Q3. Set and treeset and hashset
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It was easy basic questions were there and we were asked to write two emails.

Q1. Questions related to projects
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Q2. QBasic SQL questions
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Q1. Resume based questions
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Q2. Event loop in nodejs
Ans. 
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
• Event loop is responsible for handling I/O operations, timers, and callbacks in Node.js

• It allows Node.js to perform non-blocking operations efficiently

• Event loop continuously checks the event queue for new events to execute
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Q3. Javascript es6 questions
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3 DSA questions on array and strings 1 easy, 2 medium level

Create django backend project for book store

Q1. Behaviour and Situations questions
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