Saviant Consulting Full Stack Software Developer Interview Questions and Answers

Q1. Can you introduce yourself?
Ans. 
Experienced Full Stack Developer with expertise in front-end and back-end technologies.
• Experienced in HTML, CSS, JavaScript for front-end development

• Proficient in Node.js, Express, MongoDB for back-end development

• Familiar with React, Angular for building interactive web applications
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Q2. What is graphQL?, What is REST API? and which is better graphQL or REST API?
Ans. 
GraphQL is a query language for APIs and a runtime for executing those queries. REST API is a set of rules for building web services. Both have their own advantages.
• GraphQL allows clients to request only the data they need, reducing over-fetching and under-fetching.

• REST API follows a more rigid structure and is easier to understand for beginners.

• GraphQL is more efficient for complex queries involving multiple resources...read more
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I was asked to discuss the system design of Google Meet, with a primary focus on video processing and WebRTC.

A graph question regarding LC 1334.

Q1. Can you provide an introduction and a summary of your past experiences, as well as your motivations for wanting to join this company?
Ans. 
Experienced Full Stack Developer with a passion for creating innovative solutions and a strong desire to contribute to a dynamic team.
• Over 5 years of experience in full stack development, working on various projects from concept to deployment.

• Proficient in front-end technologies such as HTML, CSS, JavaScript, and React.

• Skilled in back-end technologies including Node.js, Express, and MongoDB.

• Motivated by the opportunity...read more
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Q1. Create a todo app with react and basic form validation
Ans. 
Create a todo app with react and basic form validation
• Use React to create components for adding, displaying, and deleting todos

• Implement basic form validation using state and event handlers

• Utilize CSS for styling the app and make it user-friendly
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Q2. Second most occuring character in the string
Ans. 
Find the second most occurring character in a string.
• Create a frequency map of characters in the string

• Sort the characters based on their frequency

• Return the second most frequent character
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Q3. Write a program to find sum and average of the digits that appear in the string, ignoring all other characters. string="PYnative29@#8496"
Ans. 
Program to find sum and average of digits in a string, ignoring other characters.
• Iterate through each character in the string and check if it is a digit.

• If it is a digit, convert it to an integer and add it to the sum.

• Keep track of the count of digits to calculate the average at the end.
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It was good and to the point

Q1. Just about the previous job
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Q2. Projects and stuff about the previous job
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Q1. What is the full stack development?
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Q2. Involves working n both the frontend and backend(server) of a web application.
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Q1. The Database performance is becoming a bottleneck and the team needs to horizontally scale the database. Which design approach should they use to scale the database efficiently?
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Q2. The app needs to send a beyond time notification to user about driver status. The status are asked, arrived, cancelled or completed. Each notification must be processed asynchronously to avoid blocking oth...read more
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Q1. Java Full stack developer rool
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Q2. Java Full stack developer
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Q3. SQL, spring, spring boot, html,core Java,oops
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Q4. I am fresher improve my skills
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Q5. CSS , javascript, HTML
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Q6. I am fresher for improving the skills growth and development
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