Mistral Solutions Senior Engineer Interview Questions and Answers

Focusing on moderate level patterns

Q1. Discuss object oriented principles in depth
Ans. 
Object oriented principles are fundamental concepts in software development that focus on organizing code into objects with properties and behaviors.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a new class to inherit properties and behaviors from an existing class.

• Polymorphism: The ability for objects of different classes to respond to the same message in di...read more
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Q2. Deep discuss of interface
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Q3. Deep discuss of exception, multithreading
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Q4. Deep discuss of oop
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Q1. Asked some tricky question related to real life problems
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Leet code medium level question

Q1. About Java Streams
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Q2. Restful API coding completion based on given file
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Q1. To check your attitude
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Q2. Given detailed about company and what project you are going to work on?
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Q1. Hashmap working
Ans. 
Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hashmap uses a hashing function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
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Q2. Multithreading cases
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Q3. Scenario specific on how to handle multiple events on a single variable to have accurate result
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Q4. Database indexing
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Q5. Architecture level
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Q1. Springboot notations
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Q2. How to handle multiple request on springboot
Ans. 
Use thread pooling and asynchronous processing to handle multiple requests efficiently in Spring Boot.
• Implement thread pooling to manage multiple requests concurrently.

• Use asynchronous processing to handle requests without blocking the main thread.

• Consider using reactive programming with Spring WebFlux for better scalability.

• Optimize database queries and external API calls to reduce response times.

• Implement caching mec...read more
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Ge general attitude and HTML CSS JavaScript Java questions

Q1. What is server and abap server
Ans. 
A server is a computer or software that provides functionality for other programs or devices. ABAP server is a server that runs ABAP programs.
• A server is a computer or software that provides services or resources to other computers or programs.

• ABAP server is a server that runs ABAP (Advanced Business Application Programming) programs, commonly used in SAP systems.

• ABAP server handles requests from clients and executes A...read more
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Q1. Coding question
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Q2. Asked to make some component in react
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Q1. Javascript questions
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Q2. Normal js questions
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Q1. What is angular
Ans. 
Angular is a popular open-source front-end web application framework developed by Google.
• Angular is used for building dynamic web applications.

• It allows for the creation of single-page applications.

• Angular uses TypeScript for building applications.

• It provides features like data binding, dependency injection, and routing.

• Angular has a large community and ecosystem with many libraries and tools available.
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Q2. What is an angular
Ans. 
Angular is a popular open-source web application framework developed by Google.
• Angular is used for building dynamic web applications.

• It allows for the creation of single-page applications.

• Angular uses TypeScript for building applications.

• It provides features like data binding, dependency injection, and routing.

• Angular has a large community and ecosystem with many libraries and tools available.
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Prime number , factorial

Q1. Question asked from OOPs , DSA
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Q2. WAP to print prime number
Ans. 
A program to print prime numbers
• Iterate through numbers and check if each number is prime

• A prime number is only divisible by 1 and itself

• Start checking from 2 onwards

• Optimization: Only check up to square root of the number
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