AutoRABIT Interview Questions, Process, and Tips

Q1. What is terraform state file
Ans. 
Terraform state file is a file that stores the state of your infrastructure managed by Terraform.
• It keeps track of the resources created by Terraform and their current state

• It is used to plan and apply changes to the infrastructure

• It can be stored locally or remotely in a backend like AWS S3 or Terraform Cloud
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Q1. What is the difference between-sub and -ref in cloud formation
Ans. 
The -sub parameter in CloudFormation creates a new stack with the specified name, while the -ref parameter references an existing resource in the same stack.
• The -sub parameter is used to create a new stack with a specified name.

• The -ref parameter is used to reference an existing resource within the same stack.

• For example, you can use -sub to create a new VPC stack, and then use -ref to reference the VPC resource in ano
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Q1. Why did you choose autorabit
Ans. 
I chose Autorabit for its comprehensive automation capabilities and seamless integration with various tools.
• Comprehensive automation capabilities streamline processes and increase efficiency

• Seamless integration with various tools allows for easy collaboration and workflow management

• User-friendly interface makes it easy to navigate and use effectively
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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
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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<String> list = new ArrayList<>(); String[
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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
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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
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Q2. Basic SQL queries with data needed from 2-3 tables
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Q1. Personal project based questions
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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
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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
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