Times Internet Senior Software Engineer Interview Questions and Answers

Mostly DSA expect DP, graph problems

Q1. Graph traversal + DP
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Q1. Rotate matrix by 90 degree
Ans. 
Rotate a matrix by 90 degrees.
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q2. Longest substring with unique characters
Ans. 
The question asks for finding the longest substring in a given string that contains only unique characters.
• Iterate through the string and keep track of the current substring

• Use a set to check for duplicate characters

• Update the longest substring if a longer one is found
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Q1. A trie question
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Ecommerce hight level design

Q1. Implement queue,
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Q2. React life cycle
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Q3. Some output based questions
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Q4. What is polyfill, implemented one two polyfill
Ans. 
A polyfill is a piece of code that provides modern functionality on older browsers that do not natively support it.
• Polyfills are commonly used for adding support for new JavaScript features on older browsers.

• Two popular polyfills are 'Babel' for ES6 features and 'fetch' for the Fetch API.

• Polyfills help ensure a consistent user experience across different browsers.

• Polyfills can be implemented using JavaScript libraries ...read more
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Q5. Create todo list using react
Ans. 
Create a todo list using React for managing tasks and reminders.
• Use React components to create a form for adding tasks

• Store tasks in state and display them in a list

• Add functionality to mark tasks as completed and delete tasks

• Implement features like filtering tasks by status or due date
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Q6. Closure and hoisting
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Q1. What are Microservices
Ans. 
Microservices are a software architecture pattern where applications are built as a collection of small, loosely coupled services.
• Microservices are independent and autonomous services that communicate with each other through APIs.

• Each microservice is responsible for a specific business capability and can be developed, deployed, and scaled independently.

• Microservices promote flexibility, scalability, and resilience in s...read more
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Q1. What are SOAP APIs
Ans. 
SOAP APIs are a protocol for exchanging structured information in web services using XML-based messages.
• SOAP stands for Simple Object Access Protocol

• It is a messaging protocol that allows programs running on different operating systems to communicate with each other

• SOAP APIs use XML to format the data being sent

• They are commonly used in enterprise-level applications for integrating different systems

• SOAP APIs provide a
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Q2. What are Rest APIs?
Ans. 
REST APIs are a set of rules and protocols that allow different software applications to communicate and interact with each other over the internet.
• REST stands for Representational State Transfer

• REST APIs use HTTP methods like GET, POST, PUT, DELETE to perform operations on resources

• REST APIs are stateless, meaning each request from a client to a server contains all the necessary information

• REST APIs typically return d...read more
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Q1. Node JS internal
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Q2. Previous project discussion
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It was a ideal machine coding round. Consisting of a question to be completed within 45 mins. For a given manager to employee hierarchy, count direct + indirect repartees.