Which of the following is the best example of metadata in a database system?
In Python, which method in the Pandas library would you use to replace NaN values in a DataFrame with the median value of each column?
Which of the following best describes non-random sampling?
What is the primary advantage of using the ARIMA (AutoRegressive Integrated Moving Average) model for forecasting time series data?
Why is sampling often preferred over using the entire population for data analysis?
What is the main advantage of using data storytelling in presenting data-driven insights?
A data analyst is tasked with presenting findings on customer churn to the executive team. Which technique would be most effective for ensuring the team...
What is the primary advantage of using CIDR (Classless Inter-Domain Routing) in IP addressing?
Which of the following query will return the third-highest salary from an Employee table in SQL?
Which SDLC model integrates testing at every phase of development, ensuring defects are identified early?
