Prospecta Software 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

Asked me to write code on paper for count inversions

Q1. Java basic questions.
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Q2. Rest basics methods like get, post, put, delete etc
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Q3. Given a directory name, write a program to return a list of all .tst files present in the directory and its sub directories.
Ans. 
Program to return list of .tst files in given directory and subdirectories
• Use recursion to traverse through all directories and subdirectories

• Check if each file has .tst extension and add to list if true

• Use built-in functions like os.listdir() and os.path.splitext() in Python
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Q1. Difference between == and equals
Ans. 
The '==' operator is used for comparing values of primitive data types, while the 'equals' method is used for comparing objects in Java.
• Use '==' to compare primitive data types like int, char, boolean, etc.

• Use 'equals' method to compare objects like Strings, Lists, etc.

• Example: int a = 5; int b = 5; if(a == b) { // true }

• Example: String str1 = 'hello'; String str2 = 'hello'; if(str1.equals(str2)) { // true }
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Q2. Use case of abstract class and interfaces
Ans. 
Abstract classes are used to provide a common base for multiple classes, while interfaces define a contract for classes to implement.
• Abstract classes can contain both abstract and concrete methods, while interfaces can only have abstract methods.

• Abstract classes can have constructors, while interfaces cannot.

• Interfaces allow for multiple inheritance, while classes can only inherit from one abstract class.

• Abstract class...read more
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Q3. Singleton design pattern. Explain and implement (thread safe)
Ans. 
Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
• Ensure a private static instance variable in the class.

• Provide a public static method to access the instance, creating it if necessary.

• Use synchronized keyword or double-checked locking to make it thread-safe.
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Q4. Merge sort. Explain and implement.
Ans. 
Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts each half, and then merges the sorted halves.
• Divide the array into two halves

• Recursively sort each half

• Merge the sorted halves back together
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Main command on JAVA script and python

What assignments and projects you had done before share that experience

Your theories on what topics you had done your best

Q1. That some personal questions and their your preference answers that suitable for your job
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Q2. Give us the reasons why we should not select for the job
Ans. 
Lack of relevant experience and skills
• Limited experience in full stack development

• Lack of proficiency in required programming languages and frameworks

• Inadequate knowledge of database management systems

• Weak problem-solving and analytical skills

• Poor communication and collaboration abilities
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It was javascript and reactjs. multiple choices and coding test

Q1. Mostly advanced javascript questions
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Train,direction,odd or eve nos,

Python dataframe coding

Numerical reasoning test
verbal reasoning test
inductive reasoning test
cognitive ability test

Communication skills
ability to listen
ability to think
analysis the topics

Q1. Always remember to flow- up
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