CET Data Management and Analytics 2

Question 1

Which type of analytics focuses on understanding what has already happened by examining historical data?

Accepted Answer

Descriptive analytics

Answer

Descriptive analytics examines historical data to answer 'what happened,' forming the foundation for more advanced analytical types.

Question 2

What is the primary purpose of a Key Performance Indicator (KPI) in data analytics?

Accepted Answer

To measure progress toward a specific business objective

Answer

A KPI is a quantifiable metric that tracks how effectively an organization is achieving a key business objective, enabling performance management.

Question 3

What does OLAP (Online Analytical Processing) enable that traditional transactional (OLTP) systems do not?

Accepted Answer

Multi-dimensional analysis of large datasets from multiple perspectives

Answer

OLAP allows users to analyze data across multiple dimensions (e.g., time, region, product) simultaneously, enabling complex analytical queries that OLTP systems are not optimized for.

Question 4

Which analytical method uses historical data and statistical algorithms to forecast future outcomes?

Accepted Answer

Predictive analytics

Answer

Predictive analytics applies machine learning models and statistical algorithms to historical data to generate probabilistic forecasts about future events or behaviors.

Question 5

In data analytics, what is the role of data visualization?

Accepted Answer

To represent data graphically so that patterns, trends, and outliers are quickly understandable

Answer

Data visualization translates complex datasets into charts, graphs, and dashboards that allow stakeholders to rapidly identify insights, trends, and anomalies.

CET - Certified Emerging Technologist Practice Test

CET - Certified Emerging Technologist Practice Test

CET Data Management and Analytics 2