AutoRABIT Software Developer Interview Questions, Process, and Tips

Hacker Earth - Couple of Aptitude and Java theory questions followed by 2 Java coding questions. Medium to Hard Difficulty level

Q1. Java Concepts and Profile based questions
Add your answer
Q2. Array List vs Array
Ans. 
Array List is a dynamic array that can grow or shrink in size, while Array has a fixed size.
• Array List allows for dynamic resizing, while Array has a fixed size set at initialization.

• Array List is more flexible and easier to work with for adding or removing elements.

• Array has better performance for random access due to contiguous memory allocation.

• Example: ArrayList list = new ArrayList<>(); String[] array = new String
Answered by AI
Add your answer
Q3. Waterfall model vs Agile
Ans. 
Waterfall model is a linear sequential approach to software development, while Agile is an iterative and incremental approach.
• Waterfall model follows a sequential process where each phase must be completed before moving on to the next.

• Agile is flexible and allows for changes to be made throughout the development process.

• Waterfall model is best suited for projects with well-defined requirements, while Agile is better fo...read more
Answered by AI
Add your answer

Q1. Post Request in Python
Ans. 
To send a POST request in Python, use the requests library.
• Import the requests library

• Use the requests.post() method with the URL and data as parameters

• Handle the response object to get the result
Answered by AI
Add your answer
Q2. Basic SQL queries with data needed from 2-3 tables
Add your answer

Q1. Personal project based questions
Add your answer
Q2. How can an application be scaled to cater to wider audience
Ans. 
An application can be scaled to cater to a wider audience by implementing load balancing, caching, database optimization, and microservices architecture.
• Implement load balancing to distribute incoming traffic across multiple servers to prevent overload on any single server.

• Utilize caching to store frequently accessed data in memory for faster retrieval and reduced load on the database.

• Optimize the database by indexing ...read more
Answered by AI
Add your answer
Q3. (Optional) Designing a payment processing system
Ans. 
Designing a payment processing system involves creating a secure and efficient platform for handling financial transactions.
• Implement secure encryption methods to protect sensitive data

• Utilize tokenization to replace card information with a unique identifier

• Integrate with payment gateways like PayPal or Stripe for processing transactions

• Include fraud detection mechanisms to prevent unauthorized transactions
Answered by AI
Add your answer