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Big Data Fundamentals

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Questions and Answers

What is the primary reason big data requires new techniques, algorithms, and analytics?

Due to the diversity and complexity of the data (correct)

Due to the lack of storage capacities

Due to the large size of the data

Due to the unstructured nature of the data

What is the main reason behind the importance of big data?

What an organization does with the data (correct)

The cost of storing the data

The speed at which data is generated

The amount of data an organization has

What is the estimated amount of data that exists in the digital universe today?

5 Zetabytes

2.7 Zetabytes (correct)

10 Zetabytes

1 Zetabyte

What is the approximate amount of user-generated data stored, accessed, and analyzed by Facebook?

30+ Petabytes Signup and view all the answers

What is the estimated amount of data generated daily by Twitter?

7 Terabytes Signup and view all the answers

What percentage of today's stored data was generated in the last two years?

90% Signup and view all the answers

Which of the following is a characteristic of big data?

All of the above Signup and view all the answers

What is the main idea behind 'Viability' in big data characteristics?

Selecting attributes that are likely to predict outcomes Signup and view all the answers

What is the main idea behind 'Value' in big data characteristics?

Analyzing data to find business value Signup and view all the answers

What is the primary driver of the increase in availability of data sources?

Proliferation of mobile phones Signup and view all the answers

What is the key benefit of big data?

The ability to generate insights that drive business value Signup and view all the answers

What is the characteristic of big data that refers to carefully selecting attributes that predict outcomes?

Viability Signup and view all the answers

What is the main challenge of managing big data?

Analyzing diverse and complex data Signup and view all the answers

What is the primary reason behind the need to analyze real-time data?

To gain a competitive advantage Signup and view all the answers

What is the common theme among the sources of big data?

They are all from different data types Signup and view all the answers

What is the implication of having 90% of today's stored data generated in the last two years?

Data is being generated at an exponential rate Signup and view all the answers

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

Big data requires new techniques and algorithms Signup and view all the answers

What is the main benefit of Walmart's ability to handle over 1 million customer transactions per hour?

Competitive advantage through data analysis Signup and view all the answers