Kinseed Interview Questions and Answers

English, Quant & Reasoning- 3 section, each section 15 que, Total 45 minutes & 45 questions, cut off for each section

Q1. Java What is JVM,JRE,JDK? what is the difference between class and instance variable in java? what is string Pool? write a code in java(prefer a good standard question) Web development if you have inter...read more
Ans. 
To build a web application, I would use a combination of front-end technologies like HTML, CSS, and JavaScript, along with back-end technologies like Node.js and MongoDB.
• Use HTML for structuring the content of the web pages

• Use CSS for styling the web pages and making them visually appealing

• Use JavaScript for adding interactivity to the web pages and handling user input

• Use Node.js for server-side scripting and handling ...read more
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Q2. If you have azure certification what is azure, what is Azure Blob Storage, What is ARM, what is horizontal Scaling?
Ans. 
Azure is a cloud computing platform by Microsoft. Azure Blob Storage is a service for storing large amounts of unstructured data. ARM stands for Azure Resource Manager, used for managing resources in Azure. Horizontal scaling is increasing the number of instances of a service to distribute load.
• Azure is a cloud computing platform by Microsoft

• Azure Blob Storage is a service for storing large amounts of unstructured data

• ...read more
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Q1. Why cse? explain a project (they might ask about a project in your resume)
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Q2. How you solved the problems that you have faced while working on projects?
Ans. 
I approach problems by breaking them down into smaller parts, analyzing root causes, seeking input from team members, and implementing solutions systematically.
• Identify the root cause of the problem

• Break down the problem into smaller parts

• Seek input from team members for different perspectives

• Implement solutions systematically

• Learn from the experience to prevent similar issues in the future
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Q1. Introduction Family Background Do you have any placement/internship offers in your hand? if so, why Ericsson At last, they will tell you about stipend, role
Ans. 
Yes, I have internship offers from Ericsson due to their reputation for innovation and cutting-edge technology.
• I have received internship offers from Ericsson because of their reputation for innovation and cutting-edge technology.

• I am excited about the opportunity to work with a global leader in telecommunications.

• I believe that interning at Ericsson will provide me with valuable experience and skills that will benefit
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Q1. Machine learning questions
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Q2. Decision trees, random forest
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Q1. ML Ops related questions
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Passed all the round

Passed all the round

Q1. Passed with manager round.as well
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The coding questions were at Leetcode difficulty level and were derived from the Striver sheet.

Q1. BFS graph level
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Q2. Minimum flight distance . I was not shortlisted for interview.
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Assessment via link MCQ

Q1. Microservices theory, Kafka
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Q2. Singoloton design pattern, concurrent package, core java, collection questions, Java 8 related problem solving stream api questions
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Q1. Same like round 1, little bit managerial
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Q2. Producer consumer multithreading, Java 8 , core java, project
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Q1. Behavioral questions
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Q2. Situation based questions
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Q1. Explain useState for managing state, useEffect for handling side effects, useMemo for performance optimization, and useCallback for memoizing functions. Understand how these hooks enhance functional compon...read more
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Explanation of useState, useEffect, useMemo, and useCallback hooks in React functional components.
• useState is used to manage state in functional components

• useEffect is used for handling side effects like data fetching, subscriptions, etc.

• useMemo is used for performance optimization by memoizing expensive calculations

• useCallback is used for memoizing functions to prevent unnecessary re-renders

• These hooks enhance functio...read more
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Q2. Describe lifecycle methods in class components and their functional equivalents with hooks. Know how to handle component mounting, updating, and unmounting.
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Q3. Understand setting up a Redux store, connecting components, and managing actions and reducers. Be familiar with middleware like Redux Thunk or Redux Saga for handling asynchronous actions.
Ans. 
Setting up Redux store, connecting components, managing actions and reducers, and using middleware like Redux Thunk or Redux Saga for handling asynchronous actions.
• Setting up a Redux store involves creating a store with createStore() function from Redux, combining reducers with combineReducers(), and applying middleware like Redux Thunk or Redux Saga.

• Connecting components to the Redux store can be done using the connec...read more
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Q4. How to add and manipulate elements in arrays using JavaScript (e.g., inserting "watermelon" in the middle)?
Ans. 
To add and manipulate elements in arrays using JavaScript, you can use array methods like splice() and slice().
• Use the splice() method to insert elements into an array at a specific index. For example, arr.splice(index, 0, 'watermelon') will insert 'watermelon' at the specified index without removing any elements.

• To manipulate elements in an array, you can use methods like splice() to remove elements or slice() to extr...read more
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Q5. Use and purpose of Math.floor() in JavaScript.
Ans. 
Math.floor() is a method in JavaScript that rounds a number down to the nearest integer.
• Math.floor() returns the largest integer less than or equal to a given number.

• It is commonly used to convert a floating-point number to an integer.

• Example: Math.floor(3.9) returns 3.
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Q6. Mocking components in Jest, including handling props and named exports
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Mocking components in Jest for testing with props and named exports
• Use jest.mock() to mock components and their exports

• For handling props, use jest.fn() to create mock functions and pass them as props to the component being tested

• For named exports, use jest.mock() with a second argument to specify the module's exports
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They had given 10 MCQs questions based on OOPs(Java), 2 MCQs on SQL, 1 SQL Query to run and 1 DSA question to code based on Strings, so overall 14 question. Difficulty level was easy to Medium.

Q1. Explain the time complexity of different sorting algorithms.
Ans. 
Sorting algorithms have different time complexities based on their implementation and efficiency.
• Bubble Sort: O(n^2) - compares adjacent elements and swaps them if they are in the wrong order.

• Merge Sort: O(n log n) - divides the array into two halves, sorts them, and then merges them.

• Quick Sort: O(n log n) - picks a pivot element and partitions the array around the pivot.

• Heap Sort: O(n log n) - builds a max heap and re...read more
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Q2. Usage of Hashmaps and Dictionaries
Ans. 
Hashmaps and dictionaries are data structures used to store key-value pairs for efficient retrieval and storage.
• Hashmaps and dictionaries are commonly used in programming to store and retrieve data based on a unique key.

• They offer fast lookup times, typically O(1) on average, making them ideal for scenarios where quick access to data is required.

• Examples of using hashmaps include storing user information with a unique ...read more
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Q3. Explain 4 pillars of OOPs (Abstraction, Encapsulation, Inheritance and polymorphism)
Ans. 
OOPs pillars are Abstraction, Encapsulation, Inheritance, and Polymorphism.
• Abstraction: Hides complex implementation details and only shows necessary features. Example: Car dashboard displaying speed without showing internal engine details.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class in Java encapsulates data members and member functions.

• Inheritance: Allows a new ...read more
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Q4. Explain JOINS(Inner join, LEFT Join etc)
Ans. 
JOINS are used in SQL to combine rows from two or more tables based on a related column between them.
• Inner Join: Returns rows when there is at least one match in both tables.

• LEFT Join: Returns all rows from the left table, and the matched rows from the right table.

• RIGHT Join: Returns all rows from the right table, and the matched rows from the left table.

• FULL Join: Returns rows when there is a match in one of the table
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Q5. Why Barclays? What do you think we do?
Ans. 
Barclays is a global financial services company with a focus on innovation and technology.
• Barclays is a leading global bank with a strong presence in the financial services industry.

• Barclays is known for its commitment to innovation and technology in the financial sector.

• Barclays offers a wide range of services including banking, investment management, and wealth management.

• Barclays has a strong reputation for providin...read more
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Q6. How do you manage stress and prepare yourself to work under tight deadlines? Can you describe a situation from the past where you faced a similar challenge and how you handled it?
Ans. 
I manage stress by prioritizing tasks, breaking them down into smaller steps, and seeking help when needed.
• Prioritize tasks based on deadlines and importance

• Break down tasks into smaller, manageable steps

• Seek help from team members or mentors when feeling overwhelmed

• Practice time management and set realistic goals
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Q7. Asked a few questions on the projects I mentioned in my resume.
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