Nvidia Data Analyst Interview Questions and Answers

SQL is a language used for managing and querying databases.

• SQL stands for Structured Query Language

• It is used to communicate with databases to retrieve, update, and manipulate data

• SQL can be used to create, modify, and delete database tables and records

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

Data mining is the process of discovering patterns and relationships in large datasets.

• Data mining involves extracting useful information from large datasets

• It uses various techniques such as machine learning, statistics, and database systems

• Examples include market basket analysis, anomaly detection, and clustering

Data visualization is the graphical representation of data to help people understand the significance of data by placing it in a visual context.

• Data visualization helps in identifying trends, patterns, and outliers in data

• It makes complex data more understandable and accessible

• Examples include charts, graphs, maps, and dashboards

Data analysis is the process of inspecting, cleaning, transforming, and modeling data to discover useful information, draw conclusions, and support decision-making.

• Data analysis involves examining raw data to find patterns, trends, and insights.

• It includes cleaning and organizing data to ensure accuracy and reliability.

• Statistical techniques and tools are often used to analyze data and make predictions.

• Data analysis he...read more

Power BI is a business analytics tool by Microsoft that provides interactive visualizations and business intelligence capabilities.

• Power BI is a data visualization tool used to create interactive reports and dashboards

• It allows users to connect to multiple data sources, clean and transform data, and create visualizations

• Users can share their reports and dashboards with others, and collaborate in real-time

• Power BI integ...read more