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ADF Data Science Junior Data Analyst Interview Questions and Answers
ADF Data Science Junior Data Analyst Interview Experiences
1 interview found
Banda Varaprasad
Selected
I applied via campus placement at CVR College of Engineering, Hyderabad and was interviewed before Jun 2022. There were 3 interview rounds.
4 coding questions divided into 2 sections and 4 sql questions.
(1 Question)
- Q1. 4 Technical Interviews. 1. Merge Sort, Explain Coding Test Questions, Basic Sql queries 2. Questions on Java, Puzzles, one code, sql 3. Taken by a senior member. Mostly asked to code and explain the appro...
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Aman Sharma
I applied via LinkedIn and was interviewed in Feb 2024. There were 2 interview rounds.
Focus on little bit of dynamic programming
(5 Questions)
- Q1. Apache spark architecture and ecosystem along with memory management
- Q2. SQL queries for manager salary
- Q3. Python decorators --> @
- Q4. RANK and other window functions
- Q5. Joins along with use case
- Ans.
Joins are used in SQL to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column
Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Use cases for joins include combining customer data with order data, merging employee information with department details
Skills evaluated in this interview
Data Analyst Interview Questions & Answers
Stock Holding Corporation of India
Pranav Kulkarni (PGDM 22-24)
posted on 13 Apr 2024
(2 Questions)
- Q1. Why data analysis and data science
- Ans.
Data analysis and data science are crucial for extracting valuable insights from large datasets to drive informed decision-making.
Data analysis and data science help in uncovering patterns and trends within data.
They enable businesses to make data-driven decisions for improved efficiency and effectiveness.
These fields also play a vital role in predictive analytics and forecasting.
Examples include using machine learning...
- Q2. Why pgdm in business analytics
- Ans.
PGDM in Business Analytics provides specialized knowledge and skills for analyzing data to drive business decisions.
Specialized curriculum focusing on data analysis techniques and tools
Hands-on experience with real-world data sets
Opportunities for networking with industry professionals
Career advancement in the field of business analytics
Skills evaluated in this interview
Data Analyst Interview Questions & Answers
Dolat Capital Market
Ashish Katiyar
posted on 14 Aug 2023
I applied via campus placement at Indian Institute of Technology (IIT), Kanpur and was interviewed in Jul 2023. There were 4 interview rounds.
Basics related to stats and aptitude questions. Level was moderate to tough.
Very easy coding question for the python or c programming language
(1 Question)
- Q1. First round of interview was the tecnical interview , data analysis and basic data managemet questions were asked.
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before Mar 2023. There were 2 interview rounds.
Asked about Numpy , Panads . Some operations of data slicing . 3 problems of python coding .
(4 Questions)
- Q1. What is standard deviation ? state formula for standard deviation
- Ans.
Standard deviation is a measure of the amount of variation or dispersion of a set of values.
Standard deviation is calculated as the square root of the variance.
It measures how spread out the values in a data set are around the mean.
A higher standard deviation indicates more variability in the data.
Formula for standard deviation: sqrt(Σ(x - μ)² / N), where x is each value, μ is the mean, and N is the number of values.
- Q2. What is correlation , regression , gradient descent
- Ans.
Correlation measures the relationship between two variables, regression predicts a dependent variable based on independent variables, and gradient descent is an optimization algorithm for finding the minimum of a function.
Correlation measures the strength and direction of a linear relationship between two variables. It ranges from -1 to 1.
Regression is a statistical technique used to model the relationship between a de...
- Q3. What is R square
- Ans.
R square is a statistical measure that represents the proportion of the variance for a dependent variable that's explained by an independent variable.
R square ranges from 0 to 1, with 1 indicating a perfect fit.
It is used to evaluate the goodness of fit of a regression model.
A higher R square value indicates that the model explains a larger proportion of the variance in the dependent variable.
- Q4. How will you select columns ?
- Ans.
I will select columns based on relevance to the analysis goals and data quality.
Identify columns relevant to the analysis goals
Consider data quality and completeness of each column
Remove redundant or irrelevant columns
Use statistical methods or domain knowledge to prioritize columns
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Skills evaluated in this interview
Data Entry Operator Interview Questions & Answers
Stock Holding Corporation of India
Anonymous
posted on 12 Apr 2023
I applied via Job Portal and was interviewed before Apr 2022. There was 1 interview round.
(2 Questions)
- Q1. Name of two mid cap stocks?
- Ans.
Two mid cap stocks are Bajaj Finserv and Muthoot Finance.
Bajaj Finserv is a financial services company with a market cap of around 1.5 lakh crore.
Muthoot Finance is a gold loan company with a market cap of around 50,000 crore.
Both stocks have shown consistent growth over the years and are considered good investment options.
- Q2. Suggest some conservative mutual funds?
- Ans.
Conservative mutual funds are low-risk investments that offer steady returns.
Conservative mutual funds invest in low-risk securities such as bonds and blue-chip stocks.
These funds are suitable for investors who want to preserve their capital and earn steady returns.
Examples of conservative mutual funds include Vanguard Wellesley Income Fund, Fidelity Conservative Income Bond Fund, and T. Rowe Price Capital Appreciation
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Selected
I applied via LinkedIn and was interviewed before Feb 2023. There were 2 interview rounds.
I had been interviewed on the basis of excel test related to advanced excel tecniques.
(2 Questions)
- Q1. I have been interviewed on the basis of alternative assets, finance etc.
- Q2. Tell me about hedge funds
- Ans.
Hedge funds are investment funds that use various strategies to maximize returns for their investors.
Hedge funds are typically only available to accredited investors due to their complex and risky nature.
They often use leverage and derivatives to amplify returns, but this also increases the risk of losses.
Hedge funds charge both a management fee (usually 2%) and a performance fee (usually 20%) based on profits earned.
S...
Interview Preparation Tips
I applied via Hirist and was interviewed in Aug 2022. There were 2 interview rounds.
(1 Question)
- Q1. Basic Numpy, Pandas and Matplotlib Question on written paper not online
Interview Preparation Tips
better stay away.
Basic python, Numpy, Pandas Matplotlib and Timeseries question.
Data Scientist Interview Questions & Answers
OneAssist Consumer Solutions
Anonymous
posted on 12 May 2021
I applied via Campus Placement and was interviewed in Apr 2021. There were 6 interview rounds.
Interview Questionnaire
1 Question
- Q1. Asked everything related to Machine learning , Deep Learning , NLP , Stats , Tableau
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ADF Data Science Junior Data Analyst Interview Process
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