Codezin Technology Solutions Interview Questions and Answers

Q1. Write a program split string by space into words
Ans. 
Program to split a string by space into words and store them in an array of strings
• Use the split() method in Python to split the string by space

• Store the split words in an array of strings

• Handle cases where there are multiple spaces between words
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Q2. Write a program count the number of words in a string
Ans. 
Program to count the number of words in a string
• Split the string by spaces to get an array of words

• Count the number of elements in the array

• Handle edge cases like empty string or extra spaces
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Q3. Oops concepts and examples
Ans. 
Oops concepts are fundamental principles of object-oriented programming.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class)

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects to be treated as instances of their parent class

• Abstraction: hiding the complex implementation details and showing only the necessary features
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Q1. Tell me about your self?
Ans. 
I am a data analyst with a strong background in statistics and data visualization.
• Experienced in analyzing large datasets to extract valuable insights

• Proficient in using statistical tools such as R and Python

• Skilled in creating interactive dashboards using Tableau

• Strong communication skills to present findings to stakeholders
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Q2. Your qualifications?
Ans. 
I have a Bachelor's degree in Statistics and experience in data analysis using Python and SQL.
• Bachelor's degree in Statistics

• Proficient in Python and SQL

• Experience in data analysis
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Q1. Give me Excel questions?
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I would recommend practicing with IndiaBix, and that should suffice.

In addition to coding, there will be an SQL query round consisting of three coding questions and three SQL queries.

Q1. Introduce yourself.
Ans. 
Experienced software engineer with expertise in Java, Python, and web development.
• Over 5 years of experience in software development

• Proficient in Java, Python, and web development technologies

• Strong problem-solving skills and ability to work in a team environment
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Q2. All the names starting with 'A' or ending with 'A'
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Q3. Sorting and array [0,1,1,0,1,1,0] in O(n).
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Q4. Merging two Lists into a Dict.
Ans. 
Merging two lists into a dictionary in Python.
• Use zip() function to pair elements from both lists.

• Use dict() constructor to convert the zipped pairs into a dictionary.
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