Dhanalakshmi Srinivasan Nidhi Jr Python Developer Interview Questions and Answers

Q1. Tell me about yourself
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Q2. Project architecture
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Q3. Sns vs SQS architecture
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SNS is a pub/sub messaging service while SQS is a message queue service in AWS architecture.
• SNS allows for push notifications to multiple subscribers, while SQS is used for decoupling services and handling asynchronous tasks.

• SNS is used for real-time messaging and event-driven architecture, while SQS is used for reliable message processing and scaling.

• SNS supports multiple message delivery protocols like HTTP, HTTPS, E...read more
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Q4. S3 file parking and triggers
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Q5. Explain Eventbridge
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Eventbridge is a serverless event bus service provided by AWS for connecting applications using events.
• Eventbridge allows different AWS services, SaaS applications, and custom applications to communicate with each other through events.

• It simplifies the process of building event-driven architectures by decoupling producers and consumers of events.

• Eventbridge can be used to trigger automated workflows, connect different ...read more
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Q1. Valid Sudoku leetcode problem
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Q2. Generate Parentheses leetcode problem
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Generate all valid combinations of parentheses for given n pairs
• Use backtracking to generate all valid combinations of parentheses

• Keep track of the number of open and close parentheses used

• Add open parenthesis if there are remaining open parentheses, add close parenthesis if there are more open than close parentheses
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Q1. Pickling and Unpickling
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Q2. Python basics and programs
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Q3. Project and profile related questions
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Q1. OOPS Concepts with example
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OOPS concepts are fundamental principles in object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit attributes and methods from another class. Example: class Dog inherits from class Animal.

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

• Polymorphism: Ability t...read more
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Q2. Multithreading and how to remove deadlock
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Multithreading allows multiple threads to run concurrently. Deadlock can be removed by avoiding circular wait, preempting resources, and using timeouts.
• Avoid circular wait by ensuring threads acquire resources in the same order

• Preempt resources by releasing them if a thread cannot acquire all necessary resources

• Use timeouts to prevent threads from waiting indefinitely for resources
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Mathematics critical thinking

What is a generator in python

Q1. Salary dicssuon
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Avg aptitude questions

2 easy coding questions

Q1. Array question in python
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Q2. SQL query based on condition
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Q1. Basic information
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Q1. Questions on python
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Q2. PYTHON libraries
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Q1. Pandas based questions
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Q2. Numpy based questions
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