ABB Data Engineer Interview Questions and Answers

Q1. Write a python program for list/dictionary (comprehensions)
Ans. 
Python program for list/dictionary comprehensions
• List comprehension: [expression for item in iterable]

• Dictionary comprehension: {key_expression: value_expression for item in iterable}

• Example: squares = [x**2 for x in range(10)]

• Example: dict_squares = {x: x**2 for x in range(10)}
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Q2. Write a python program to convert a number to words. For ex: i/p 123, o/p - One hundred twenty three
Ans. 
Python program to convert a number to words.
• Use a dictionary to map numbers to words.

• Divide the number into groups of three digits and convert each group to words.

• Handle special cases like zero, negative numbers, and numbers greater than or equal to one billion.
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Q3. Questions on AWS glue/EMr cluster. How to filter a dataframe in PySpark ?
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Q1. Questions based on Terraform
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Q2. Write a python program for list/dictionary comprehensions.
Ans. 
Python program for list/dictionary comprehensions.
• List comprehension: [expression for item in iterable]

• Dictionary comprehension: {key_expression: value_expression for item in iterable}

• Example: squares = [x**2 for x in range(10)]

• Example: dict_squares = {x: x**2 for x in range(10)}
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Q1. Salary discussion
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Arrays related problem

Building selection system using best practices in C# dot net, SOLID principle, Design Patterns.
It was above average difficult question and time was less. But they were ok to give more time to complete the system. lasted around 4 hours

Asked questions about previous experience and my aptitude. they were keep to know if I am ok to work in fast pace environment. lasted around 40 mins.

Q1. Questions related to your profile
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Technical quotation related to PLC

Q1. Types of gate in logic
Ans. 
Types of gates in logic are basic building blocks of digital circuits.
• AND gate: outputs true only when all inputs are true (e.g. A AND B)

• OR gate: outputs true when at least one input is true (e.g. A OR B)

• NOT gate: inverts the input (e.g. NOT A)

• NAND gate: combination of AND gate followed by NOT gate

• NOR gate: combination of OR gate followed by NOT gate

• XOR gate: outputs true when inputs are different (e.g. A XOR B)
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Q1. Questions regarding oops concept
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Q1. Implement atoi , and just basic programming questions
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Q1. Why u want to join siemens and salary discussion
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Q1. OOPs concepts, threading, SOLID principles
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Q2. Design patterns, abstract class, interface
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Q1. Soild principles, oops concepts
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Q1. General programming questions, working style, how to handle a project
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why are you looking for a change?
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Q4. What are your strengths and weaknesses?
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Q5. Tell me about yourself.
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