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Revnomix Solutions Junior Data Analyst Interview Questions, Process, and Tips
Revnomix Solutions Junior Data Analyst Interview Experiences
1 interview found
Anonymous
Selected
I applied via Approached by Company and was interviewed before Jan 2024. There was 1 interview round.
(5 Questions)
- Q1. What is Forecasting?
- Ans.
Forecasting is the process of making predictions about future trends based on past and present data.
Forecasting involves analyzing historical data to make informed predictions about future outcomes.
It helps businesses anticipate demand, plan resources, and make strategic decisions.
Common methods of forecasting include time series analysis, regression analysis, and machine learning algorithms.
Examples of forecasting inc...
- Q2. Real Case study(What if Questions?)
- Q3. Difference between drop delete and truncate
- Ans.
Drop, delete, and truncate are SQL commands used to remove data from a table, but they differ in their functionality and impact on the table.
DROP command removes the entire table structure along with data
DELETE command removes specific rows based on a condition
TRUNCATE command removes all rows from a table but keeps the table structure intact
DROP is non-recoverable, DELETE is recoverable, and TRUNCATE is faster than DE
- Q4. What is series in Pandas and array in Numpy?
- Ans.
Series in Pandas is a one-dimensional labeled array while array in Numpy is a multi-dimensional container of items of the same type.
Series in Pandas can hold data of any type and can be indexed by labels.
Arrays in Numpy are homogeneous in nature, meaning they can only store elements of the same data type.
Example: Pandas Series - s = pd.Series([1, 2, 3, 4, 5], index=['a', 'b', 'c', 'd', 'e'])
Example: Numpy Array - arr =
- Q5. What is error handling in python?
- Ans.
Error handling in Python is the process of dealing with errors that occur during the execution of a program.
Error handling allows for graceful handling of exceptions and prevents the program from crashing.
Common error handling techniques include try-except blocks, try-finally blocks, and raising custom exceptions.
Example: try: a = 10 / 0 except ZeroDivisionError as e: print('Error:', e)
Example: try: f...
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(2 Questions)
- Q1. About my cv details
- Q2. About Data analyst questions
(3 Questions)
- Q1. About the Excel
- Q2. Tablue questions
- Q3. SQL and power bi
(2 Questions)
- Q1. What is duel axis
- Ans.
Dual axis is a feature in data visualization where two different scales are used on the same chart to represent two different data sets.
Dual axis allows for comparing two different measures on the same chart
Each measure is assigned to its own axis, allowing for easy comparison
Commonly used in tools like Tableau for creating more complex visualizations
- Q2. What is scatter plot
- Ans.
A scatter plot is a type of data visualization that displays the relationship between two numerical variables through dots on a graph.
Scatter plots are used to identify patterns and relationships between variables.
Each dot on the plot represents a single data point with the x-axis representing one variable and the y-axis representing the other variable.
The pattern of the dots can indicate the strength and direction of ...
(2 Questions)
- Q1. What is blending
- Ans.
Blending is the process of combining multiple data sources or datasets to create a unified view.
Blending involves merging data from different sources to gain insights or make decisions.
It helps in creating a comprehensive dataset by combining relevant information from various sources.
Blending can be done using tools like Tableau, Power BI, or Python libraries like Pandas.
For example, blending sales data from CRM with c...
- Q2. What is joining
Skills evaluated in this interview
(1 Question)
- Q1. Tell me about your Project
- Ans.
Developed a predictive model to forecast customer churn for a telecommunications company.
Used machine learning algorithms such as logistic regression and random forest
Performed data preprocessing and feature engineering to improve model accuracy
Collaborated with business stakeholders to understand key factors influencing customer churn
I applied via Referral and was interviewed in Dec 2023. There was 1 interview round.
(3 Questions)
- Q1. What are the available data types in sql
- Ans.
The available data types in SQL include numeric, character, date/time, and boolean types.
Numeric data types include integer, decimal, and floating-point types.
Character data types include char, varchar, and text types.
Date/time data types include date, time, datetime, and timestamp types.
Boolean data type represents true or false values.
- Q2. What are the joins available in SQL
- Ans.
Joins are used to combine rows from two or more tables based on related columns.
INNER JOIN: Returns records that have matching values in both tables.
LEFT JOIN: Returns all records from the left table and the matched records from the right table.
RIGHT JOIN: Returns all records from the right table and the matched records from the left table.
FULL JOIN: Returns all records when there is a match in either left or right tab...
- Q3. What is Power bi
- Ans.
Power BI is a business analytics tool that provides interactive visualizations and business intelligence capabilities.
Power BI is a Microsoft product used for data analysis and visualization.
It allows users to connect to various data sources and create interactive reports and dashboards.
Power BI offers a wide range of visualizations, such as charts, graphs, and maps, to present data in a meaningful way.
Users can perfor...
Skills evaluated in this interview
Bhavana Madireddy
I applied via Campus Placement
(1 Question)
- Q1. Tell me about ur projects
I applied via Job Fair and was interviewed in Oct 2023. There were 3 interview rounds.
Quantitative, Verbal , numerical etc
Basic Programming questions
(1 Question)
- Q1. Reversing of String using C
- Ans.
Reversing a string in C using pointers and arrays.
Use a pointer to the beginning of the string and another pointer to the end of the string.
Swap the characters at the two pointers and move them towards each other until they meet in the middle.
Repeat the process until the entire string is reversed.
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- Hacker rank
- Good Programming
Skills evaluated in this interview
Time, arithmetic problems
Sql queries and python basics
(1 Question)
- Q1. Same advance sql and dashboards
Problem solving using sql and publishing dashboards
(1 Question)
- Q1. Salary negotiation
Interview Preparation Tips
Selected
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Tell me about your self.
- Q2. What is your Salary expectation
(6 Questions)
- Q1. Tell me about your self ?
- Q2. Explain your previous role.
- Q3. Difference between Adverse Event and Adverse reaction with example.
- Q4. Seriousness criteria of cases Explain Congenital Anomaly.
- Q5. In Pregnancy case related question.
- Q6. Define Solicited report and Spontaneous report.
- Ans.
Solicited report is a report requested by an authority while spontaneous report is a voluntary report by an individual.
Solicited report is requested by an authority or organization.
Spontaneous report is voluntary and not requested.
Solicited report is usually for a specific purpose or event.
Spontaneous report is usually for unexpected events or adverse reactions.
Examples of solicited reports include clinical trial repor...
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Skills evaluated in this interview
PRASHANTHI VISWASHULA
I applied via Job Portal and was interviewed in Apr 2023. There were 3 interview rounds.
Tell about yourself ..?
(1 Question)
- Q1. About the projects that I have done .Regarding Sql
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Revnomix Solutions Junior Data Analyst Interview Process
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