Infosys Full Stack Software Developer Interview Questions and Answers

Good morning sir have a you sir my name is hemant Ramchandra narkhede

Java script simple frame

Q1. What are the different data types present in javascript?
Ans. 
JavaScript has several data types including string, number, boolean, object, function, undefined, and null.
• String: 'hello', '123'

• Number: 123, 3.14

• Boolean: true, false

• Object: { key: 'value' }

• Function: function() { }

• Undefined: undefined

• Null: null
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Q2. Difference between var and let keyword in javascript.
Ans. 
var is function-scoped while let is block-scoped in JavaScript.
• var keyword is function-scoped, meaning it is accessible throughout the function it is declared in.

• let keyword is block-scoped, meaning it is only accessible within the block it is declared in.

• Using var can lead to variable hoisting issues, while let provides more predictable behavior.

• let allows for better variable scoping and reduces the risk of unintended
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Q1. What are the advantages of pair programming?
Ans. 
Pair programming promotes collaboration, knowledge sharing, and code quality.
• Enhances code quality through immediate code review and feedback

• Promotes knowledge sharing and learning from each other

• Fosters collaboration and teamwork

• Reduces the likelihood of bugs and errors

• Increases productivity by leveraging two minds on the same problem

• Helps in breaking down complex problems into smaller tasks

• Improves communication skil
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Q2. How do you handle constructive feedback about your full-stack development projects?
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Q1. How do you identify bugs in your code?
Ans. 
I use a combination of manual testing, unit testing, and debugging tools to identify bugs in my code.
• Perform manual testing by running the code and checking for any unexpected behavior or errors.

• Write unit tests to verify the functionality of individual components and catch any issues early on.

• Utilize debugging tools like breakpoints, logging, and stack traces to track down the root cause of bugs.

• Collaborate with team ...read more
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Q2. How long have you been coding primarily in Python?
Ans. 
I have been coding primarily in Python for 5 years.
• I started learning Python in college and have been using it extensively in my professional career.

• I have worked on various projects using Python, including web development, data analysis, and automation.

• I am proficient in Python libraries such as NumPy, Pandas, and Django.
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HR round full stack developer experience

Best atitude round questions

1st round was mixture of aptitude and some psuedo code and the time given was 90 mins for 90 questions.

After clearing the cuttoff there will be 2 coding question one for easy level second will be medium level.

Q1. Ai based english vocabolary and listening test
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Q1. This round was the easiest of all just basic questions
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Q2. Oops related question
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Q3. Project discussion based questions.
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Q4. Do you know something about modern technologies.
Ans. 
Yes, modern technologies are constantly evolving and I keep myself updated with the latest trends.
• I am familiar with cloud computing platforms like AWS, Azure, and Google Cloud

• I have experience with containerization using Docker and Kubernetes

• I am proficient in programming languages like Python, JavaScript, and Java

• I have worked with modern front-end frameworks like React and Angular

• I am familiar with DevOps practices ...read more
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Q5. Have any questions for me.
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Aptitude test basic on java

Q1. Java aptitude questions
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Q2. Web technologies
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Q1. Check whether a given graph is cyclic
Ans. 
To check if a graph is cyclic, use depth-first search to detect back edges.
• Perform a depth-first search on the graph and keep track of visited nodes and parent nodes.

• If a visited node is encountered with a parent different from the current node, then the graph contains a cycle.

• Example: For a graph with edges (A, B), (B, C), (C, A), the graph is cyclic.
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Q2. Factory design pattern question
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Quantitive aptitude, reasoning

Q1. Tell me about yourself
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Q2. What is your weakness and strength?
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Q3. Why should I hire you
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Q1. Programming related questions
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