NatWest Python Developer Interview Questions and Answers

Two to three rounds are there 1. Coding
2. L1
3. L2

Test from normal question

The coding test was easy and had a high passing rate.

The emphasis of this test was primarily on web development using python and not traditional python based questions.

Q1. Tell me about yourself
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Q2. Project architecture
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Q3. Sns vs SQS architecture
Ans. 
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
Ans. 
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. What is difference between List and Tuple in python?
Ans. 
List is mutable, Tuple is immutable in Python.
• List can be modified after creation, Tuple cannot be modified.

• List uses square brackets [], Tuple uses parentheses ().

• List is used for collections of items that may need to be changed, Tuple is used for collections of items that should not change.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)
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Q2. Get min and max from a list without using function
Ans. 
Find min and max from a list without using function
• Iterate through the list and compare each element with current min and max values

• Update min and max values accordingly
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Q3. Explain iterator, generator and lambdas
Ans. 
Iterators are objects that allow iteration over a sequence, generators are functions that yield values one at a time, and lambdas are anonymous functions.
• Iterators are objects that implement the iterator protocol, with methods like __iter__() and __next__().

• Generators are functions that use the yield keyword to return values one at a time, pausing execution between each yield.

• Lambdas are anonymous functions defined usi...read more
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Q1. Coding and debugging questions
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Q2. Aptitude questions based on the technical part
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Q1. Checking our reading writing listening speaking skills
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Q1. Asked questions about oops
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Q1. She asking Work experience related and expected CTC etc.
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Q2. Your resume is shortlisted then call back you.
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