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Coding test based on SQL and Python
I would apologize for the inconvenience, investigate the issue, and communicate a plan to prevent future delays.
Apologize for the late delivery and acknowledge the inconvenience caused to the client.
Investigate the reasons behind the late delivery, including any internal or external factors that contributed to the delay.
Communicate a plan to prevent future delays, such as improving communication with the client, optimi...
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posted on 3 Aug 2024
I applied via Campus Placement and was interviewed in Jul 2024. There were 3 interview rounds.
SQL and business related questions
Business related questions and graphs and metrics
I applied via Company Website and was interviewed before Jun 2023. There were 3 interview rounds.
It was the usual aptitude test
3 codes where there which i opted the complete in java. 1 code was complete and rest 2 was half done
posted on 20 Apr 2022
To connect SQL & PowerBI backend database, use the 'Get Data' option in PowerBI and select SQL Server as the data source.
Open PowerBI and select 'Get Data' option
Select 'SQL Server' as the data source
Enter the server name and database name
Choose the authentication method
Select the tables/views to import
Transform the data if required
Create visualizations using the imported data
posted on 3 Oct 2021
I applied via Referral and was interviewed in Apr 2021. There were 3 interview rounds.
I applied via Walk-in and was interviewed in Dec 2024. There were 5 interview rounds.
Given task Statics standard deviations Attrition Average of given table values and Given graph economi graph and poverty graph base on that need to gave answers 30 qustion and 60 min time duration
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
Bagging and boosting are ensemble learning techniques used to improve the performance of machine learning models by combining multiple weak learners.
Bagging (Bootstrap Aggregating) involves training multiple models independently on different subsets of the training data and then combining their predictions through averaging or voting.
Boosting involves training multiple models sequentially, where each subsequent model c...
Parameters of a Decision Tree include max depth, min samples split, criterion, and splitter.
Max depth: maximum depth of the tree
Min samples split: minimum number of samples required to split an internal node
Criterion: function to measure the quality of a split (e.g. 'gini' or 'entropy')
Splitter: strategy used to choose the split at each node (e.g. 'best' or 'random')
Developed a predictive model to forecast customer churn in a telecom company
Collected and cleaned customer data including usage patterns and demographics
Used machine learning algorithms such as logistic regression and random forest to build the model
Evaluated model performance using metrics like accuracy, precision, and recall
Provided actionable insights to the company to reduce customer churn rate
I applied via Approached by Company and was interviewed in Aug 2024. There were 2 interview rounds.
*****, arjumpudi satyanarayana
Python is a high-level programming language known for its simplicity and readability.
Python is widely used for web development, data analysis, artificial intelligence, and scientific computing.
It emphasizes code readability and uses indentation for block delimiters.
Python has a large standard library and a vibrant community of developers.
Example: print('Hello, World!')
Example: import pandas as pd
Code problems refer to issues or errors in the code that need to be identified and fixed.
Code problems can include syntax errors, logical errors, or performance issues.
Examples of code problems include missing semicolons, incorrect variable assignments, or inefficient algorithms.
Identifying and resolving code problems is a key skill for data scientists to ensure accurate and efficient data analysis.
Python code is a programming language used for data analysis, machine learning, and scientific computing.
Python code is written in a text editor or an integrated development environment (IDE)
Python code is executed using a Python interpreter
Python code can be used for data manipulation, visualization, and modeling
The project is a machine learning model to predict customer churn for a telecommunications company.
Developing predictive models using machine learning algorithms
Analyzing customer data to identify patterns and trends
Evaluating model performance and making recommendations for reducing customer churn
The question seems to be incomplete or misspelled.
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Ask for clarification or context to provide a relevant answer.
I applied via Naukri.com and was interviewed in Sep 2024. There were 2 interview rounds.
Find Nth-largest element in an array
Sort the array in descending order
Return the element at index N-1
based on 1 interview
Interview experience
TCS
Accenture
Wipro
Cognizant