Color-coded visualizations are effective for highlighting seasonal sales patterns in a retail business dashboard. By associating different colors with specific seasons, users can quickly identify patterns and trends. 3D charts may distract from the main message, and monochrome or random color choices might not convey the seasonal aspect effectively.

To design a query for a report that involves aggregating large volumes of data and including specific row-level data, you would use the GROUP BY clause for aggregation and JOIN to connect multiple tables. This combination allows for both summarization and detailed row-level information.

Data governance in data projects involves managing data quality and integrity, ensuring that data is accurate, reliable, and complies with organizational standards. While security is an aspect, it's not the sole focus of data governance.

The mode is the statistical concept used to determine the most commonly reported issue in a dataset. It represents the value that occurs most frequently. Mean, median, and range are measures of central tendency and dispersion, but they do not specifically identify the most common value.

In the ETL (Extract, Transform, Load) process, data cleansing is crucial for ensuring data accuracy and consistency. It involves identifying and correcting errors or inconsistencies in the data before loading it into the target system.

Gross Profit Margin is a key performance indicator (KPI) used in financial analysis to assess a company's profitability relative to its revenue. It represents the percentage of revenue that exceeds the cost of goods sold. ROI, EBIT, and Working Capital Ratio are important metrics but are not specifically focused on profitability relative to revenue.

Sharding involves partitioning a large database into smaller, more manageable parts called shards. Each shard can be hosted on a separate server, distributing the workload and improving scalability in large-scale database systems.

Fog computing is a cloud-based technology that extends computing capabilities to the edge of the network. It allows for the efficient processing of complex algorithms on large datasets closer to the data source, reducing latency and bandwidth usage.

The correct command is 'git revert.' This command creates a new commit that undoes the changes made in a previous commit. 'git reset' is used for more aggressive changes, and 'git undo' and 'git back' are not valid Git commands.

The 'Employee Attrition Rate' is a key performance indicator (KPI) that helps organizations measure the rate at which employees leave the company voluntarily or involuntarily. It provides insights into workforce stability and HR strategy effectiveness.