Big Data and Data Governance Quiz

What is one key difference between traditional data and big data?

• Traditional data is unstructured, big data is structured

• Big data is generated hourly; traditional data is generated per second

• Big data includes semi-structured and unstructured formats

• Traditional data includes social media and sensor data

Which of the following is not one of the four original V’s of big data?

• Volume

• Velocity

• Veracity

• Vulnerability

What is the main goal of data governance?

• To reduce server maintenance costs

• To restrict access to all enterprise data

• To manage data availability, usability, integrity, and security

• To store large datasets in the cloud

Which of the following is an outcome of effective data governance?

• Fewer data stewards

• Automated decision making

• Quality data and improved access

• Data visualisation dashboards

In the data lifecycle, what typically happens at the ‘Data Maintenance’ stage?

• Analysis and reporting

• Manual data entry

• Extract – Transform – Load (ETL) processes

• Regulatory review

What best describes 'Data Archival'?

• Encrypting sensitive data

• Removing all copies of data permanently

• Storing data in a backup location for occasional use

• Publishing data for public access

What is a key challenge at the ‘Data Usage’ stage from a governance perspective?

• Choosing software tools

• Regulatory or contractual constraints

• Visualising big data

• Managing sensor calibration

In the Data Analytics Lifecycle, what happens during the ‘Exploratory Analysis’ phase?

• Business objectives are defined

• Data is archived

• Relationships and patterns in the data are examined

• Results are communicated to stakeholders

Which of the following is part of the ‘Validation’ phase in the analytics lifecycle?

• Creating backups

• Defining the business problem

• Confirming the reliability of analysis results

• Integrating external data

What is the first step of the Data Analytics Lifecycle?

• Data Preparation

• Business Understanding

• Exploratory Analysis

• Deployment