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Nokia Data Analyst Interview Questions and Answers
Nokia Data Analyst Interview Experiences
1 interview found
Shashank S
(2 Questions)
- Q1. Questions were based on DSA and C
- Q2. It was basically a coding round with simple logic
Interview questions from similar companies
Divya Shree
(2 Questions)
- Q1. What is join in sql
- Ans.
Join in SQL is used to combine rows from two or more tables based on a related column between them.
Join is used to retrieve data from multiple tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
- Q2. What is primary key
- Ans.
Primary key is a unique identifier for each record in a database table.
Primary key ensures each record in a table is uniquely identified
It must contain unique values and cannot have NULL values
Primary key can be a single column or a combination of columns
Example: 'ID' column in a 'Users' table can be a primary key
Skills evaluated in this interview
Anonymous
Selected
(1 Question)
- Q1. Asked to create a power bi dashboard
(1 Question)
- Q1. Had coding test on SQL and Python
Interview Questionnaire
3 Questions
- Q1. Rate yourself in ADVANCED EXCEL, AND SQL
- Ans.
I rate myself 8/10 in Advanced Excel and 9/10 in SQL.
Advanced Excel: proficient in pivot tables, VLOOKUP, macros, and data visualization
SQL: skilled in writing complex queries, joins, subqueries, and stored procedures
Experience in using Excel and SQL together to analyze large datasets
- Q2. How to Work with dynamic data, how to remove duplicate data or fix the data
- Ans.
To work with dynamic data, remove duplicates and fix errors, use data cleaning techniques.
Use software tools like OpenRefine or Excel to clean data
Identify and remove duplicate data using unique identifiers
Fix errors by standardizing data formats and using regular expressions
Use data validation to ensure accuracy and completeness
Create a data cleaning plan and document all changes made
Test the cleaned data to ensure it
- Q3. Difference between formula and a function
- Ans.
Formula is a mathematical expression while function is a pre-built formula that performs a specific task.
Formula is a combination of mathematical operators and values used to calculate a result.
Function is a pre-built formula that performs a specific task, such as finding the average of a range of numbers.
Formulas can be customized and modified, while functions are fixed and cannot be changed.
Examples of functions incl
Interview Preparation Tips
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Mar 2024. There were 2 interview rounds.
(1 Question)
- Q1. Relocation to any location.
Python language requried
(1 Question)
- Q1. Python data structure
Skil set for My relevant job update
Communication discussion
(2 Questions)
- Q1. About My profile and knowledge
- Q2. About My attitude and experience
(1 Question)
- Q1. Excel formula and macro MS word and PowerPoint dashboard advanced Excel and power bi
(1 Question)
- Q1. Couple of leetcode medium questions (i think it was around 3 questions) and they had their own platform
I applied via Recruitment Consulltant and was interviewed in Jun 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about the project you have worked recently
- Ans.
Developed a predictive analytics model to forecast customer churn for a telecom company
Used Python and SQL to clean and analyze customer data
Implemented machine learning algorithms such as logistic regression and random forest
Evaluated model performance using metrics like accuracy, precision, and recall
- Q2. What kind of forecasting have you done
- Ans.
I have experience in time series forecasting using statistical models and machine learning algorithms.
Utilized ARIMA model to forecast sales data for a retail company
Implemented Prophet algorithm to predict stock prices for a financial institution
Used LSTM neural network for demand forecasting in supply chain management
Excel assessment- was made to make a report from multiple sheets
(2 Questions)
- Q1. If your seniors are on leave and you dont know how to deal situation what will you do
- Q2. How you will deal with your juniours when they dont have conceptual knowledge
Interview Preparation Tips
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Nokia Data Analyst Interview Process
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Nokia Data Analyst Reviews and Ratings
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Software Engineer
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Technical Specialist
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R&D Engineer
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