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Ericsson Data Scientist Interview Questions, Process, and Tips

Updated 21 Nov 2024

Top Ericsson Data Scientist Interview Questions and Answers

  • Q1. What are the assumptions of a linear regression model?
    View answer (1)
  • Q2. What problems does multicollinearity cause in regression analysis?
    Add answer
  • Q3. What are the different measures used to evaluate the performance of a classification model?
    Add answer
View all 11 questions

Ericsson Data Scientist Interview Experiences

8 interviews found

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 21 Nov 2024

Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
No response

I applied via Company Website and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Difference between Data Warehouse, Data Lakes and Tables
  • Ans. 

    Data Warehouse stores structured data for reporting and analysis, Data Lakes store raw and unstructured data, Tables are basic data structures.

    • Data Warehouse is used for storing structured data from various sources for reporting and analysis.

    • Data Lakes store raw and unstructured data in its native format for future processing and analysis.

    • Tables are basic data structures used to organize and store data in a structured ...

    • Answered by AI
    Add your answer
  • Q2. Query difference betweeen Group by and Partition by
  • Ans. 

    Group by is used to group rows that have the same values into summary rows, while Partition by is used to divide the result set into partitions to which the function is applied separately.

    • Group by is used with aggregate functions to group rows based on a column or set of columns.

    • Partition by is used with window functions to divide the result set into partitions.

    • Group by is used with SELECT statement, while Partition by...

    • Answered by AI
    Add your answer
  • Q3. Machine Learning questions such as Regression, Trees etc
    • Add your answer

Interview Preparation Tips

Topics to prepare for Ericsson Data Scientist interview:
  • SQL
Interview preparation tips for other job seekers - Prepare the basics

Skills evaluated in this interview

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 8 Nov 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Basic aptitude ques were asked

Round 2 - One-on-one 

(2 Questions)

  • Q1. Projects discussion
    • Add your answer
  • Q2. Probability questions
    • Add your answer
Round 3 - HR 

(2 Questions)

  • Q1. Why Ericsson and 5 year plan
    • Add your answer
  • Q2. Your strength and weakness
    • Add your answer

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Data Scientist Interview Questions & Answers

user image rakesh kumar Sharma

posted on 8 Oct 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. ML questions and deep learning
    • Add your answer
  • Q2. Project in your cv
    • Add your answer

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 21 Mar 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Isolatn forest work? evalution metrics in laymann tems , pyspark basics , job lib
    • Add your answer
Round 2 - Technical 

(1 Question)

  • Q1. Scenerio based data science questns , paramatric and non parametric data
    • Add your answer

Ericsson interview questions for designations

 Senior Data Scientist

 (3)

 Data Analyst

 (1)

 Data Engineer

 (1)

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 10 Mar 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I was interviewed in Feb 2024.

Round 1 - Technical 

(1 Question)

  • Q1. Statistics, Machine Learning, Project -Easy to moderate questions
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare Statistics and Machine learning algorithms.

Get interview-ready with Top Ericsson Interview Questions

Data Scientist Interview Questions & Answers

user image prakhar pandey

posted on 15 Oct 2023

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Statistics, python, machine learning, regression
    • Add your answer
Round 3 - One-on-one 

(1 Question)

  • Q1. Statistics, machine learning, regression, python
    • Add your answer
Round 4 - HR 

(1 Question)

  • Q1. Tell me about yourself
    • Add your answer

Data Scientist Jobs at Ericsson

View all

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 11 Mar 2022

I was interviewed before Mar 2021.

Round 1 - Telephonic Call 

(4 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions on ML mainly.

  • Q1. What are the assumptions of a linear regression model?
    • Add your answer
  • Q2. What problems does multicollinearity cause in regression analysis?
    • Add your answer
  • Q3. What are the different measures used to evaluate the performance of a classification model?
    • Add your answer
  • Q4. What are the disadvantages of logistic regression?
    • Add your answer

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAEricsson India interview preparation:Topics to prepare for the interview - ML, Statistics, SQL, OOPS, Aptitude, DSATime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Prepare basics of ML, stats and Sql properly. 
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

Data Scientist Interview Questions & Answers

user image Anonymous

posted on 28 Nov 2021

I applied via Referral and was interviewed before Nov 2020. There were 4 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. State assumptions of linear regression?
  • Ans. 

    Assumptions of linear regression

    • Linear relationship between independent and dependent variables

    • Homoscedasticity (constant variance) of errors

    • Independence of errors

    • Normal distribution of errors

    • No multicollinearity among independent variables

    • Answered by AI
    View 1 more answer
  • Q2. What is effect of multicollinearity ik regression analysis?
  • Ans. 

    Multicollinearity in regression analysis affects the accuracy and interpretability of the model.

    • Multicollinearity occurs when two or more independent variables are highly correlated.

    • It leads to unstable and unreliable estimates of regression coefficients.

    • It reduces the precision of the estimates and increases the standard errors.

    • It makes it difficult to interpret the individual effects of the independent variables.

    • It c...

    • Answered by AI
    Add your answer
  • Q3. What are different measures used to check performance of classification model
  • Ans. 

    Measures to check performance of classification model

    • Accuracy

    • Precision

    • Recall

    • F1 Score

    • ROC Curve

    • Confusion Matrix

    • Answered by AI
    View 1 more answer
  • Q4. What are disadvantage of logistics regression?
  • Ans. 

    Logistic regression assumes linear relationship between independent and dependent variables.

    • May not perform well with non-linear data

    • May overfit or underfit the data

    • May be sensitive to outliers

    • May require large sample size for stable results

    • Answered by AI
    Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics of ML, stats and Sql properly

Skills evaluated in this interview

Top trending discussions

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Interview Tips & Stories
2w
gandalfthepurple
Verified Icon
·
works at
MicroEnergy Credits, Corp.
SQL and Python Interview Tips needed ASAP!
My SQL and Python technical round is in 3 days and I need a list of important topics to practice for Python. I have worked on NumPy and Pandas libraries at my current workplace. Need an exhaustive list of topics that you guys have been asked in DA/BA role interviews. The interview is for a Big4 company. Any help is much appreciated!
Got a question about Ericsson?
Ask anonymously on communities.

Interview questions from similar companies

Data Scientist Interview Questions & Answers

AT&T user image Anonymous

posted on 1 Mar 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Basic ML questions were asked.
    • Add your answer

Data Scientist Interview Questions & Answers

Vodafone Idea user image Anonymous

posted on 20 Apr 2023

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Apr 2022. There were 6 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. All technical questions related to profile
    • Add your answer
Round 3 - Technical 

(1 Question)

  • Q1. Data science questions
    • Add your answer
Round 4 - Behavioral 

(1 Question)

  • Q1. Current role and experience related
    • Add your answer
Round 5 - Technical 

(2 Questions)

  • Q1. Technical questions
    • Add your answer
  • Q2. Data science questions by onshore team
    • Add your answer
Round 6 - HR 

(2 Questions)

  • Q1. Salary joining date
    • Add your answer
  • Q2. Expected salary joining date
    • Add your answer
More about working at Ericsson
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Ericsson Interview FAQs

How many rounds are there in Ericsson Data Scientist interview?
Ericsson interview process usually has 2 rounds. The most common rounds in the Ericsson interview process are Technical, One-on-one Round and HR.
How to prepare for Ericsson Data Scientist interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Ericsson. The most common topics and skills that interviewers at Ericsson expect are Python, Machine Learning, SQL, Data Management and HTML.
What are the top questions asked in Ericsson Data Scientist interview?

Some of the top questions asked at the Ericsson Data Scientist interview -

  1. What are different measures used to check performance of classification mo...read more
  2. What is effect of multicollinearity ik regression analysi...read more
  3. isolatn forest work? evalution metrics in laymann tems , pyspark basics , job l...read more

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Ericsson Data Scientist Interview Process

based on 9 interviews

1 Interview rounds

  • Technical Round
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Ericsson Data Scientist Salary
based on 276 salaries
₹12.7 L/yr - ₹33 L/yr
37% more than the average Data Scientist Salary in India
View more details

Ericsson Data Scientist Reviews and Ratings

based on 28 reviews

3.7/5

Rating in categories

3.1

Skill development

3.5

Work-life balance

3.4

Salary

3.7

Job security

3.3

Company culture

2.8

Promotions

2.9

Work satisfaction

Explore 28 Reviews and Ratings
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₹ 14.75-23 LPA

Data Scientist - 7+ Exp

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