D468 Discovering Data - Set 5 - Part 1

Correct Answer: Archive

The Archive phase ensures important data is stored for future reference or compliance purposes, often for long-term preservation.

Correct Answer: Clean and transform the data

In the Process phase, data is cleaned and transformed to ensure it is usable for analysis.

Correct Answer: ORDER BY

The ORDER BY clause is used to sort the result set in ascending or descending order based on one or more columns.

Correct Answer: It provides information about the data

Metadata describes the structure, relationships, and attributes of the data in a database.

Correct Answer: Share

Data visualizations are developed and presented to stakeholders during the Share phase to help communicate insights effectively.

Correct Answer: SUM

The SUM function calculates the total sum of values in a numeric column.

Correct Answer: To establish clear, actionable goals

The SMART framework helps define Specific, Measurable, Action-oriented, Relevant, and Time-bound goals.

Correct Answer: COUNT

The COUNT function returns the total number of rows in a table or result set.

Correct Answer: It is a proposed solution that can be tested

A hypothesis is a proposed, testable explanation or solution to a problem in data analysis.

Correct Answer: To base business decisions on facts and insights

Data-driven decision-making ensures business strategies and actions are based on factual data and insights rather than intuition or assumptions.

Correct Answer: Implement the insights gained from the analysis

The Act phase involves putting the findings and recommendations into action to address the problem initially posed.

Correct Answer: TRUNCATE

The TRUNCATE command removes all rows from a table but keeps the table's structure intact.

Correct Answer: A unique identifier for each row in a table

A primary key is a column (or set of columns) that uniquely identifies each row in a table.

Correct Answer: Dashboards provide real-time data visualizations

Dashboards offer a real-time view of key metrics and data, enabling stakeholders to monitor performance and trends.

Correct Answer: Collect and verify data

The Prepare phase involves collecting relevant data and verifying its accuracy and usefulness for analysis.

Correct Answer: It creates a relationship between two tables

A foreign key establishes a relationship between two tables, ensuring referential integrity.

Correct Answer: Quantitative data

Quantitative data, such as numerical values, is often used to analyze trends, patterns, and statistical relationships.

Correct Answer: A relationship between two variables

Correlation measures the relationship between two variables, showing how one variable may affect the other.

Correct Answer: The underlying reason for the problem

Root cause refers to the fundamental issue or reason that led to the problem, which must be identified to effectively resolve the issue.

Correct Answer: To implement a solution based on insights

The Act phase focuses on taking action based on the insights derived from the analysis to solve the identified problem.