Axxela Research & Analytics Analyst Interview Questions and Answers

Q1. What is a VPN, and how does it work?
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Q2. What steps would you take if the server were to go down?
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It comprised of 3 sections
1st section
MCQ round:DSA(bitwise operators), DBMS, Networking.
2nd Section
Essay writing (200 words)
3rd Section
Gaming based cognitive ability test.

Then qualified students had to give SVAR test.

Q1. Can you describe your major project
Ans. 
Developed a data analysis tool to track customer behavior and improve marketing strategies.
• Utilized Python and SQL to extract and analyze customer data

• Implemented machine learning algorithms to predict customer preferences

• Collaborated with marketing team to implement targeted campaigns based on analysis

• Generated reports and visualizations to present findings to stakeholders
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Q2. Explain the concept of inheritance along with other basic Object-Oriented Programming (OOP) concepts?
Ans. 
Inheritance is a concept in OOP where a class can inherit attributes and methods from another class.
• Inheritance allows for code reusability and promotes the concept of 'is-a' relationship.

• A subclass can inherit from a superclass, gaining access to its attributes and methods.

• Example: Class 'Animal' can be a superclass, and classes like 'Dog' and 'Cat' can inherit from it.
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Q1. What is data analysis and data science?
Ans. 
Data analysis involves examining, cleaning, transforming, and modeling data to discover useful information, while data science involves using scientific methods, algorithms, and systems to extract knowledge and insights from data.
• Data analysis focuses on examining and interpreting data to make informed decisions.

• Data science involves using various techniques and algorithms to extract insights and knowledge from data.

• Da...read more
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Q2. What is array explain numpy in python?
Ans. 
An array in numpy is a grid of values, all of the same type, and is indexed by a tuple of nonnegative integers.
• Numpy is a popular Python library for numerical computing.

• Arrays in numpy can be created using the np.array() function.

• Arrays can have multiple dimensions, such as 1D, 2D, or even higher dimensions.

• Numpy arrays are more efficient than Python lists for numerical operations.

• Example: import numpy as np arr = np.a
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Q3. What is dataframe?
Ans. 
Dataframe is a two-dimensional data structure in pandas that stores data in rows and columns.
• Dataframe is a key data structure in the pandas library for data manipulation and analysis

• It is similar to a table in a relational database or a spreadsheet in Excel

• Dataframes can be created from various data sources such as CSV files, databases, or dictionaries
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Q4. What is Power Bi
Ans. 
Power BI is a business analytics tool by Microsoft that provides interactive visualizations and business intelligence capabilities.
• Power BI allows users to connect to various data sources and create interactive reports and dashboards.

• Users can easily share and collaborate on reports with others within their organization.

• It offers a wide range of visualization options to present data in a meaningful way.

• Power BI can be ...read more
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Q5. What are the data visulaztion tools?
Ans. 
Data visualization tools are software that help in creating visual representations of data to aid in understanding and analysis.
• Tableau

• Power BI

• QlikView

• Google Data Studio

• D3.js
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In the aptitude round there were various sections such as quants, verbal and technical questions based on networking and cloud platforms and some pseudo codes . No coding questions were asked .

It was structured group discussion with one panel member and a case study was provided to us .

Q1. Tell me about yourself .
Ans. 
I am a dedicated and detail-oriented analyst with a strong background in data analysis and problem-solving.
• I have a Bachelor's degree in Statistics and have completed multiple data analysis projects during my studies.

• I am proficient in using statistical software such as R and Python to analyze data and generate insights.

• I have experience working with cross-functional teams to develop and implement data-driven strategie...read more
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Q2. Tell me about the projects that you have made .
Ans. 
I have worked on various projects including financial analysis, market research, and data visualization.
• Developed financial models to analyze company performance

• Conducted market research to identify growth opportunities

• Created interactive dashboards for data visualization

• Collaborated with cross-functional teams to implement project recommendations
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Q3. Puzzles questions
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Q4. Coding question
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Q5. Machine learning question
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Q1. Explain in detail Previous job experience
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Q1. What is content moderation
Ans. 
Content moderation is the process of monitoring and filtering user-generated content on online platforms to ensure it meets community guidelines.
• Monitoring and reviewing user-generated content

• Filtering out inappropriate or harmful content

• Enforcing community guidelines and policies

• Removing spam, hate speech, and other violations

• Implementing automated tools and human moderators

• Examples: Facebook moderating posts, YouTube
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Q2. Policy related questions
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It consists of few questions on logical thinking and aptitude