QualityKiosk Technologies Senior Business Analyst Interview Questions and Answers

This was a very easy test. It can be crackable easily.

Q1. There is only 1 technical happened. Core java, angular, JUNIT
Ans. Basics of core java must, Angular if worked on it
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Q2. Junit test cases if worked previously.
Ans. 
Junit test cases should always be re-run to ensure code quality and prevent regression.
• Junit test cases should be run after every code change.

• Test cases should cover all possible scenarios and edge cases.

• Test cases should be automated to save time and ensure consistency.

• Test cases should be reviewed and updated regularly.

• Regression testing should be performed to ensure new changes do not break existing functionality.
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Q1. Salary discussion, Why this company kind of question.
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Q1. Technical question
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Q2. Java oops and write a program for remove duplicates
Ans. 
Java program to remove duplicates from an array of strings using OOPs concepts.
• Create a HashSet to store unique strings.

• Iterate through the array and add each string to the HashSet.

• Convert the HashSet back to an array to get the unique strings.
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Q1. Previous project experience
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Q1. How do you read an external text file
Ans. 
To read an external text file, you can use file handling techniques in programming languages like Python or Java.
• Use file handling functions like open(), read(), and close() in Python to read an external text file.

• In Java, use classes like FileReader and BufferedReader to read text files.

• Specify the file path and mode (read mode) when opening the file.

• Read the contents of the file line by line or as a whole, depending ...read more
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Q2. Write a java program to find the occurrences of characters
Ans. 
Java program to find occurrences of characters in a string
• Create a HashMap to store characters and their counts

• Iterate through the string and update the counts in the HashMap

• Print the characters and their counts from the HashMap
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I was asked to ode to-do list with remove action

Q1. I am a MERN stack developer. So interviewer covered all the topics including aws, mongo,sql,node,deployments etc.,
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Q2. Explain Event loop and concurrency in node.js
Ans. 
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
• Node.js uses a single-threaded event loop architecture to handle multiple concurrent operations.

• Event loop continuously checks the call stack for any functions to execute, along with handling I/O operations asynchronously.

• Concurrency in Node.js is achieved through non-blocking I/O operations, allowing multipl...read more
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Q3. Explain about ec2 and s3 handled in your project
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Q1. Managerial round. Just we discussed about my previous projects and project handling tools
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Q1. That was a salary negotiation round.
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Q1. Difference between Sanity & Smoke
Ans. 
Sanity testing is a subset of regression testing, while smoke testing is a subset of acceptance testing.
• Sanity testing is performed to ensure that the critical functionalities of the software are working as expected.

• Smoke testing is performed to verify if the software build is stable enough for further testing.

• Sanity testing is usually performed after major changes or bug fixes.

• Smoke testing is performed on each build ...read more
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Mcat Aptitude for general MCQ

Q1. Python/Java Development test
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Q2. What is Object-oriented programming?
Ans. 
Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Encapsulation: Objects can encapsulate data and behavior within a single unit.

• Inheritance: Objects can inherit attributes and methods from other objects.

• Polymorphism: Objects can take on different forms or have multiple behaviors.

• Example: Classes in Java or C++ are used to create objects with propertie
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Q3. Explain API Gateway.
Ans. 
API Gateway is a server that acts as an API front-end, receiving API requests, enforcing throttling and security policies, passing requests to the back-end service, and then passing the response back to the requester.
• API Gateway acts as a single entry point for all client requests to the backend services.

• It can handle tasks like authentication, authorization, rate limiting, caching, and request/response transformations...read more
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Q4. What is Spring?
Ans. 
Spring is a lightweight framework for building enterprise applications in Java.
• Provides comprehensive infrastructure support for developing Java applications

• Facilitates easier configuration and integration of various components

• Promotes good programming practices like dependency injection and aspect-oriented programming

• Includes modules like Spring Core, Spring MVC, Spring Security, etc.

• Example: @Autowired annotation for
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Q5. What is Normalization?
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization is used to eliminate data redundancy by breaking up tables into smaller tables and defining relationships between them.

• It helps in reducing data anomalies such as insertion, update, and deletion anomalies.

• Normalization is achieved through a series of normal forms (1NF, 2NF, 3NF, BCNF, etc.)

• For exa...read more
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Q1. Why you change the company
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