DISYS Trainee Interview Questions and Answers

Q1. What is Tuples? How do you convert a string to a tuple?
Ans. 
Tuples are immutable sequences of elements. A string can be converted to a tuple using the tuple() function.
• Tuples are similar to lists but are immutable

• Elements of a tuple are enclosed in parentheses ()

• A string can be converted to a tuple using the tuple() function

• Each character in the string becomes an element in the tuple
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Q2. What is Left Join? Show one Left join for 2 data frames on Python
Ans. 
Left join is a type of join operation in SQL that returns all the rows from the left table and matching rows from the right table.
• Left join is performed using the 'left join' keyword in SQL

• In Python, left join can be performed using the 'merge' function from the pandas library

• Syntax: pd.merge(left_dataframe, right_dataframe, how='left', on='key_column')

• Example: pd.merge(df1, df2, how='left', on='id')
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On python and sql coding.they ask simple to complex questions

Q1. On data science machine learning
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There were 3 rounds for data science consultant position at Equifax. 1st round consists of Python and SQL questions and also in this round they have tested analytical thinking as well.

In 2nd round they have asked me questions from my resume and asked me to explain the projects which I have worked on in previous company. In this round they have asked me pandas related questions and asked me write code.

Q1. In Managerial round again here I have been asked questions related my projects. and no coding round in this stage.
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Q1. About my self and experience
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Q2. About my hobbies
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Q1. Document verify
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Q2. Tel about my favorite topic
Ans. 
My favorite topic is artificial intelligence and its impact on society.
• AI has revolutionized various industries such as healthcare, finance, and transportation

• Ethical considerations surrounding AI development and deployment are crucial

• AI has the potential to both improve and disrupt society in significant ways
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Q1. Previous year experience
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Q1. Type of value added to the company
Ans. 
I add value to the company by leveraging my skills and experience to drive growth, improve efficiency, and enhance overall performance.
• Implementing cost-saving initiatives

• Developing innovative solutions to challenges

• Improving processes and workflows

• Increasing revenue through strategic partnerships

• Enhancing customer satisfaction and retention
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Q1. Tell about my self and experience
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Q1. Telling about myself and my experience with my manager
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Q1. Java basics , spring boot
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Q1. Coding question on array list
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Q1. How much salary do you expect
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Q1. Introduce yourself and explain your carrier
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Q2. B. Tech with 11 years of experience on Linux Administration/Devops/Ansible/Puppet/Cloud administration/ AWS/Openstack
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