Delhivery Front end Developer Interview Questions and Answers

Q1. Nodejs life cycle
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Q2. Promise in nodejs
Ans. 
Promise in Node.js is an object representing the eventual completion or failure of an asynchronous operation.
• Used to handle asynchronous operations in a more readable and manageable way

• Can be in one of three states: pending, fulfilled, or rejected

• Can be chained together to handle multiple asynchronous operations sequentially

• Example: fetching data from a database using a promise-based API
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Q1. Ask to find out count occurrences of anagram
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Q1. Writtern test related to coding
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Q1. Questions related node js and sql
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Q1. Scenarios based questions, technical discussion
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Q1. Introduce yourself.
Ans. 
I am a software developer with 5 years of experience in Java and Python.
• Experienced in Java and Python programming languages

• Worked on various projects involving web development and data analysis

• Familiar with Agile methodologies and version control systems like Git
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Q2. Project related questions.
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Q1. Questions on Django middleware, models and queries
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Q1. Design an algorithm to efficiently to send office bus to all location in the city
Ans. 
Use a greedy algorithm to send the office bus to all locations in the city efficiently.
• Start from the office location and pick the nearest location to visit next.

• Continue picking the nearest unvisited location until all locations are covered.

• Repeat the process until all locations are visited.

• Consider using Dijkstra's algorithm or a similar approach for finding the nearest location.

• Optimize the route by considering traf
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Q1. Round with CTO, mostly behavioural and expected pay
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The basic questions asked in an interview .

DP, graph, and array questions asked in 2nd round also asked my company project

Q1. Tell what is your name
Ans. 
My name is John Smith.
• Full name is John Smith

• Common name in English-speaking countries

• No middle name or initial
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Q2. What do you do in free time
Ans. 
In my free time, I enjoy hiking, playing video games, and learning new programming languages.
• Hiking in local trails and national parks

• Playing video games like Overwatch and Minecraft

• Learning new programming languages like Python and JavaScript
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Q1. Tell me about you
Ans. 
I am a passionate software developer with a strong background in programming languages such as Java, Python, and JavaScript.
• Experienced in developing web applications using frameworks like Spring Boot and React

• Proficient in database management with SQL and NoSQL databases

• Skilled in problem-solving and debugging code efficiently
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