Uipath Senior Software Engineer Interview Questions and Answers

Data Structure related questions

Q1. Java related interview questions
Add your answer

Q1. Based on your skill sets mentioned in your Resume
Add your answer

Q1. Based on your skilllsets
Add your answer

Q1. Discussion on salary
Add your answer

Q1. Technical questions
Add your answer

Q1. Technical questions
Add your answer

Q1. Technical questions
Add your answer

Q1. Salary expectation
Add your answer

Q1. Design of some machine
Ans. 
Designing a machine involves creating a detailed plan for its structure, functionality, and operation.
• Consider the purpose of the machine and its intended use

• Identify the key components and their interactions

• Create a schematic or blueprint detailing the layout and connections

• Select appropriate materials and technologies for construction

• Test the machine for functionality and efficiency
Answered by AI
Add your answer

Q1. Multithreading, Spring boot, Singleton scope
Add your answer

Q1. What is BDD and TDD
Ans. 
BDD stands for Behavior Driven Development and TDD stands for Test Driven Development.
• BDD focuses on the behavior of the system from the user's perspective.

• TDD focuses on writing tests before writing the actual code.

• BDD uses natural language to describe the behavior of the system.

• TDD helps in ensuring that the code meets the requirements and is well-tested.

• Both BDD and TDD help in improving the quality of the software
Answered by AI
Add your answer
Q2. What is JUnit and Mockito
Ans. 
JUnit is a unit testing framework for Java, while Mockito is a mocking framework used for creating mock objects in unit tests.
• JUnit is used for writing and running repeatable automated tests to ensure code behaves as expected.

• Mockito is used to create mock objects to simulate the behavior of real objects in unit tests.

• Both JUnit and Mockito are commonly used in test-driven development (TDD) to ensure code quality and r
Answered by AI
Add your answer
Q3. What is microservices architecture
Ans. 
Microservices architecture is an architectural style that structures an application as a collection of loosely coupled services.
• Each service is self-contained and can be developed, deployed, and scaled independently.

• Services communicate with each other over lightweight protocols like HTTP or messaging queues.

• Microservices allow for flexibility, scalability, and easier maintenance compared to monolithic architectures.

• Ex...read more
Answered by AI
Add your answer
Q4. Why HashSet has default size 16
Ans. 
HashSet default size 16 for performance balance between memory usage and lookup time.
• Default size 16 provides a good balance between memory usage and lookup time.

• Choosing a power of 2 size helps in distributing elements evenly across buckets.

• Resizing the HashSet is expensive, so starting with a larger size reduces the need for resizing.

• Example: If the default size was too small, it would lead to more collisions and deg
Answered by AI
Add your answer
Q5. What is diff between ActiveMQ and RabbitMQ
Ans. 
ActiveMQ is Java-based messaging broker while RabbitMQ is a message broker that implements the Advanced Message Queuing Protocol (AMQP).
• ActiveMQ is written in Java and supports multiple messaging protocols like OpenWire, STOMP, MQTT, and AMQP.

• RabbitMQ is written in Erlang and specifically implements the AMQP protocol.

• ActiveMQ is more feature-rich and has a larger user base, while RabbitMQ is known for its reliability a...read more
Answered by AI
Add your answer
Q6. What are databases are present in Azure DB
Ans. 
Azure DB offers various databases including SQL Database, Cosmos DB, MySQL, PostgreSQL, and MariaDB.
• SQL Database

• Cosmos DB

• MySQL

• PostgreSQL

• MariaDB
Answered by AI
Add your answer
Q7. Diff between HashSet and HashMap
Ans. 
HashSet is a collection of unique elements, while HashMap is a key-value pair collection.
• HashSet does not allow duplicate elements, HashMap allows duplicate keys but not duplicate values.

• HashSet uses Set interface, HashMap uses Map interface.

• Example: HashSet set = new HashSet<>(); HashMap map = new HashMap<>();
Answered by AI
Add your answer
Q8. Internal working of HashMap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap allows null keys and values, and...read more
Answered by AI
Add your answer