Postman Senior Software Engineer Interview Questions and Answers

Q1. What is CSP? what is nonce? Few coding problems make flat array, etc. Advance javascript questions.
Add your answer

Q1. What is generator functions? what is symbols? write an implementation for const keyword to support in es05.
Ans. 
Generator functions and symbols in JavaScript. Implementation of const keyword in ES5.
• Generator functions are functions that can be paused and resumed, allowing for lazy evaluation of data.

• Symbols are a new primitive type in ES6 that can be used as unique identifiers.

• To implement const in ES5, we can use Object.defineProperty to create a read-only property on an object.
Answered by AI
Add your answer
Q2. Explain or write custom events with example.
Ans. 
Custom events are user-defined events that can be triggered in a software application.
• Custom events can be defined using event listeners and dispatchers.

• They can be used to track user behavior, monitor application performance, and trigger specific actions.

• Examples of custom events include button clicks, form submissions, and page scrolls.
Answered by AI
Add your answer

Q1. Difference between null and object.
Ans. 
Null is absence of value while object is a collection of properties and methods.
• Null is a primitive value while object is a complex data type.

• Null is used to indicate absence of value while object is used to represent real-world entities.

• Null cannot have properties or methods while object can have both.

• Example of null: let x = null; Example of object: let person = { name: 'John', age: 30 };
Answered by AI
Add your answer

Array and Java related questions

I was asked to implement lru cache which i did but still didn’t made to next round as apparently i didn’t complete the working code though in my opinion i did

Q1. Complete Code for Ludo Game. Sort of Machine coding round.
Add your answer
Q2. Given an array of intervals and return the minimum number of intervals you need to remove to make the rest of the intervals non-overlapping.
Ans. 
Remove overlapping intervals to minimize removals.
• Sort intervals by end time

• Iterate through intervals, remove overlapping intervals

• Return count of removed intervals
Answered by AI
Add your answer

Stream a live log file to browser

Q1. Existing project details
Ans. 
The existing project is a web application for managing inventory and sales.
• Built using React for the front-end and Node.js for the back-end

• Uses MongoDB as the database

• Includes features such as user authentication, product management, and sales tracking
Answered by AI
Add your answer

Q1. Scale up existing project
Ans. 
Scaling up an existing project involves optimizing performance, increasing capacity, and improving efficiency.
• Identify bottlenecks and areas for improvement

• Implement caching mechanisms to reduce load times

• Optimize database queries for faster retrieval

• Upgrade hardware or infrastructure to handle increased traffic

• Use load balancing to distribute traffic evenly across servers
Answered by AI
Add your answer

Q1. General question about the project, challenges, etc
Add your answer

Q1. Implement tail -f command w/o use of external libraries
Ans. 
Implementing tail -f command without external libraries in Python
• Open the file in read mode

• Use a loop to continuously read new lines added to the file

• Print the new lines as they are read
Answered by AI
Add your answer

Q1. General questions on challenges, current role, production issues
Add your answer
Q2. DSA Question - next warm day
Add your answer

Q1. How google.com works
Ans. 
Google.com is a search engine that uses web crawlers to index websites and algorithms to rank search results.
• Google uses web crawlers to index websites and store information in its database.

• Algorithms are used to rank search results based on relevance and popularity.

• Google also uses personalized search results based on user data and location.

• Google's homepage is simple and fast-loading to provide a user-friendly experi
Answered by AI
Add your answer
Q2. How rest works, in array of 500 elements give top 15 elements discussion about complexities
Add your answer