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WorksheetsJourney towards Advanced Analytics
Total questions: 10
Worksheet time: 6mins
Which is true for practical data?
Data Science is to insights, Machine Learning is to predictions. AI is to ______
actions
large scale predictions
automations
revolution
Mostly used python library in Data processing?
scikit-learn
numpy
matplotlib
pandas
Which database has schema?
Hbase (Hadoop)
Redis
MongoDB
PostgreSQL
Which is NOT a specialized BI tool?
Excel
Power-BI
Tableau
Qlik sense
Where do Data Analyst(DA) and Data Scientist(DS) differ?
No difference; same role
DS - research questions & insights , predictions
DA - only reports & insights
DA analyses data but DS only develops prediction models
DA fetches data, DS doesn't fetch data
Difference between Machine learning(ML) and Deep learning(DL) ?
DL is part of AI where ML is not.
ML mimics human brain ; DL can't
ML needs feature engineering where DL doesn't
Both are basically same
You have a task to do churn prediction of users (yes/no). Which algorithm will you use in base line model selection?
1. XGBoost
2. K-means Clustering
None
Both 1 & 2
Which is best use of Clustering?
Market segmentation
Sales forecasting
Fraud prediction
Anomaly detection
You need to write a SQL query , fetch data, manipulate them and e-mail to clients. which should you use for efficiency?
PHP
Java
SQL
Python
