Collabera Technologies Data Analyst Interview Questions and Answers

Q1. Self introduction.
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Q2. About your project.
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Basics of Statics and also verbal

Data structures and algorithms trees

Q1. Tell me about yourself
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Q2. Previous experience questions
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Q1. Questions from SQL,UNIX,PYTHON,AWS
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Q1. Current Project
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Currently working on analyzing customer data for a retail company.
• Analyzing customer purchase history

• Identifying trends and patterns in customer behavior

• Segmenting customers based on demographics and purchase preferences
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Q1. Expected Salary,Process, Offer letter
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Q1. Where do you see yourself in 5 years
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Q2. Tell me about yourself
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Provided sales case study, asked to analyse the same ans provide insights

Q1. OOPS concept in java
Ans. 
OOPS concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation d...read more
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Q2. Difference between lists and tuples
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Lists are mutable, ordered collections of items while tuples are immutable, ordered collections of items.
• Lists are defined using square brackets [] while tuples are defined using parentheses ().

• Lists can be modified (add, remove, change elements) while tuples cannot be modified once created.

• Lists are typically used for collections of similar items that may need to be changed, while tuples are used for fixed collections...read more
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