CapitalOne Associate Software Engineer Interview Questions and Answers

Simple aptitude questions and multiple choice coding questions were asked.

Q1. Explanation about project
Ans. 
I have worked on a project to develop a mobile application for tracking fitness activities and providing personalized workout plans.
• Developed user-friendly interface for inputting and tracking fitness data

• Implemented algorithms to generate personalized workout plans based on user's goals and progress

• Integrated with wearable devices to automatically sync activity data

• Conducted thorough testing to ensure accuracy and rel...read more
Answered by AI
Add your answer
Q2. SQL queries which were easy
Add your answer
Q3. Linked list and arrays
Add your answer

3 dsa questions medium level

Q1. 2 medium level dp questions based on string and stocks
Add your answer
Q2. One hard question based on graph
Add your answer

Q1. Hr questions and java , springboot questions etc
Add your answer

Coding and aptitude round

Q1. Tree dsa questions
Add your answer

Q1. Horse race question
Add your answer

Q1. Location specific question
Add your answer

Q1. Internal Implementation of HashMap
Ans. 
HashMap is implemented using an array of linked lists to handle collisions.
• HashMap stores key-value pairs in an array of linked lists

• Hash function is used to determine the index of the array where the key-value pair will be stored

• Collision handling is done by chaining, where multiple key-value pairs with the same hash value are stored in the same linked list

• HashMap allows null keys and values

• HashMap is not synchronized...read more
Answered by AI
Add your answer

Javascript,html, CSS and MySQL

Q1. Basic NodeJs and MySQL questions,scenario-based technical questions and basic interview questions
Add your answer
Q2. What is an event loop, The second highest from the table
Ans. 
An event loop is a programming construct that waits for and dispatches events or messages in a program.
• Event loop is commonly used in asynchronous programming to handle tasks like I/O operations without blocking the main thread.

• It continuously checks for events in a queue and processes them one by one.

• Examples of event loops include Node.js event loop for handling asynchronous operations in JavaScript.

• Event loop helps ...read more
Answered by AI
Add your answer

Q1. Basic nodejs and SQL queries question
Add your answer

Q1. Basic interview question and technology based
Add your answer

Q1. What are the pillars of OOPS
Ans. 
The pillars of OOPS are Inheritance, Encapsulation, Abstraction, and Polymorphism.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Abstraction: Hiding the complex implementation details and showing only the necessary features of an object.

• Polymorphism: Ability to present the same interface for different
Answered by AI
Add your answer
Q2. Basic SQL Questions
Add your answer