Little Angels Modern High School Senior Software Engineer Interview Questions and Answers

Medium leetcode question on graph was given by third party interviewer BarRaiser

Q1. Design a distributed system with 10mil users
Ans. 
Design a distributed system to handle 10 million users.
• Use a microservices architecture to break down the system into smaller, manageable components.

• Implement load balancing to distribute user requests across multiple servers.

• Utilize a distributed database to store user data and ensure scalability.

• Implement caching mechanisms to improve performance and reduce database load.

• Use message queues for asynchronous communicat...read more
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Advanced Java coding

Q1. Entire core Java arrays and strings
Ans. 
Core Java arrays and strings are fundamental data structures used for storing and manipulating data in Java programming.
• Arrays in Java are used to store multiple values of the same data type in a single variable.

• Strings in Java are objects that represent sequences of characters.

• Arrays and strings in Java are both indexed collections, with arrays being mutable and strings being immutable.

• Example: String[] names = {"Alic
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Q2. Java collections and Framework
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Q1. Some coding and framework
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Q2. REST assured and API
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Q1. Microservice what is and Architecture
Ans. 
Microservices are a software development approach where applications are broken down into smaller, independent services that communicate with each other.
• Microservices are small, independent services that work together to form a larger application

• Each microservice is responsible for a specific function or feature

• Microservices communicate with each other through APIs

• Microservices can be developed, deployed, and scaled in...read more
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Q1. Profermance and error management questions
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The first round was aptitude and it has 3 sections

They gave coding regarding java

Q1. Tell about Oops concepts
Ans. 
OOPs concepts are fundamental principles in object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

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

• Polymorphism: Ability to present...read more
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Q2. Difference between method overloading and method overriding
Ans. 
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
• Method overloading is resolved at compile time based on the method signature, while method overriding is resolved at runtime based on the object type.

• Method overloading is used to provide different ...read more
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Coding test are assessments that are designed to evaluate a developer's coding skills and aptitude.

An aptitude test is an exam used to determine an individual's skill or propensity to succeed in a given activity

Common Aptitude along with HTML5, CSS

Q1. Mostly questions were on HTML5,CSS and web development related questions.
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Q1. What is oops , explain its concepts
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation refers to the bundling of data with the methods that operate on that data.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism allows objects to be treated as instances of their par...read more
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Q2. What do you know about collections in java explain it
Ans. 
Collections in Java are classes that represent groups of objects, providing operations for manipulation and iteration.
• Collections framework in Java provides interfaces (e.g. List, Set, Map) and classes (e.g. ArrayList, HashSet, HashMap) for storing and manipulating groups of objects.

• Collections offer methods for adding, removing, and accessing elements in a collection.

• Collections also provide methods for sorting, searc...read more
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Q1. Tell me about yourself
Ans. 
I am a passionate software engineer with experience in developing web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Docker
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Q2. Situation based behaviourial questions
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