MCQs on Big Data and Analytics

Which of the following best defines Big Data?

• Data that fits in Excel spreadsheets

• Small amounts of organized data

• Extremely large and complex datasets difficult to handle with traditional tools

• Data stored on personal devices only

Which is NOT one of the original 5Vs of Big Data?

• Volume

• Velocity

• Vision

• Variety

Structured data example in a hospital would be:

• MRI scan images

• Doctor's handwritten notes

• Admission records

• Patient emails

Unstructured data example in a hospital would be:

• Billing info

• Appointment ID

• MRI images

• Patient ID number

Which of the following is NOT a challenge of Big Data?

• Talent shortage

• Data Quality

• Limited storage devices

• Privacy and Security

Which characteristic of Big Data refers to the speed at which data is generated?

• Variety

• Velocity

• Veracity

• Value

What is the goal of Big Data Analytics?

• Store raw data without any processing

• Delete unnecessary user data

• Discover patterns and insights from large datasets

• Restrict access to data

Which analytics type asks: "What happened?"

• Diagnostic Analytics

• Predictive Analytics

• Prescriptive Analytics

• Descriptive Analytics

Which analytics type helps determine future outcomes?

• Diagnostic Analytics

• Predictive Analytics

• Descriptive Analytics

• None of the above

The phase where raw data is processed and cleaned is part of:

• Data storage

• Data deletion

• Big Data Analytics

• System crash recovery