Mphasis Python Automation Engineer Interview Questions and Answers

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

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

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

Print words with even length from sentences

• Iterate through each word in the sentence

• Check the length of the word using len() function

• If the length is even, add the word to a new list

• Return the list of words with even length

Check if a string is symmetrical, palindrome, or both.

• Check if the string is equal to its reverse to determine if it is a palindrome.

• Check if the string is equal to its mirror image to determine if it is symmetrical.

• A string that is both a palindrome and symmetrical is one that reads the same forwards and backwards.

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)

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

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

To write test cases, identify scenarios, create test data, and execute tests. For data operations on list & dict, use built-in functions.

• For test cases, identify positive and negative scenarios, boundary conditions, and edge cases.

• Create test data that covers all possible scenarios and edge cases.

• Use assert statements to verify expected results.

• For data operations on list & dict, use built-in functions like append(), p...read more

Python program to print prime numbers between 1 to 100

• Loop through numbers 1 to 100

• Check if number is prime using modulus operator

• Print the prime numbers