Teachmint Senior Software Developer 2 Interview Questions and Answers

Q1. Basics of js and react
Add your answer
Q2. What are closures and give an example
Ans. 
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
• Closures are created when a function is defined within another function and has access to the outer function's variables.

• They can access variables from the outer function even after the outer function has returned.

• Closures are commonly used in event handlers and callbacks in JavaScript.
Answered by AI
Add your answer
Q3. What is event loop and features of es5
Ans. 
Event loop is a mechanism that allows JavaScript to perform non-blocking operations by handling asynchronous events.
• Event loop is responsible for executing code, collecting and processing events, and executing queued sub-tasks.

• ES5 features include strict mode, JSON object, Array methods like forEach, map, filter, and reduce, and Object.create method.

• ES5 also introduced new methods for manipulating strings, such as trim
Answered by AI
Add your answer

Q1. General management round and past experience
Add your answer

Question were very basic from array and stacks

Q1. Sdlc lifecycle of components and architecture.
Ans. 
SDLC lifecycle involves planning, designing, developing, testing, deploying, and maintaining software components and architecture.
• SDLC (Software Development Life Cycle) includes phases like planning, designing, coding, testing, and maintenance.

• Components are designed, developed, tested, and integrated into the overall architecture.

• Architecture involves defining the structure, behavior, and interactions of software comp...read more
Answered by AI
Add your answer

Q1. Role and responsibility my tasks and questions on project
Add your answer

Q1. Low Level design on Quiz Portal Application
Ans. 
Designing a low level architecture for a quiz portal application
• Use a microservices architecture for scalability and flexibility

• Implement a database schema to store quiz questions, answers, and user responses

• Utilize caching mechanisms to improve performance

• Design an authentication system to ensure secure access to quizzes

• Include features for creating, editing, and taking quizzes
Answered by AI
Add your answer

Q1. Questions Based on Python
Add your answer

Q1. Salary Expectations and Joining Process
Add your answer

Q1. Question on Binary trees: if symmetric, easy string question using hashmap
Add your answer
Q2. If we are hosting a live test how to show real time ranking, HLD for this and what algorithms can we use
Add your answer

Q1. Database schema design for a feature where user can be free, gold, platinum.
Ans. 
Use a user table with a column for user type (free, gold, platinum)
• Create a user table with columns for user ID, name, email, user type

• Use a separate table for user types with columns for type ID and type name

• Establish a one-to-many relationship between user and user type tables

• Example: user table - user_id, name, email, type_id; user_type table - type_id, type_name
Answered by AI
Add your answer

Q1. HLD for live rank dashboard for a live test where millions of users are doing test
Ans. 
High-level design for a live rank dashboard for a live test with millions of users.
• Use a scalable architecture to handle millions of users concurrently.

• Implement real-time data processing to update ranks dynamically.

• Utilize caching mechanisms to improve performance and reduce load on the database.

• Design a user-friendly interface with intuitive data visualization.

• Include features for filtering, sorting, and searching to
Answered by AI
Add your answer

Q1. No any interview
Add your answer
Q2. It's aptitude test only
Add your answer

Question on Linked list. array and string manipulation.