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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
(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
I applied via Approached by Company and was interviewed in Jan 2023. There were 3 interview rounds.
These are the general questions which we had studied upto 10th and likely to be coding ....i had never attempted to this aptitude test...just read by my seniors of btech
Coding is the favorite part of my life.....i started...no ..no..my coach started to taught me from C...then to C++, in the final year I'm impressed on Java and python for data science and machine learning......and much more interesting was IOT ....the world much better and with IOT without effecting the species by 5G and 4G networks
Interview Preparation Tips
- Data Structures
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 AmbitionBox and was interviewed before Apr 2023. There were 2 interview rounds.
Good but very tough and difficult not easy to crack
(1 Question)
- Q1. About dsa and basic
Interview Preparation Tips
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. Python data structure
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
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