Entity Relationship Diagrams and Big Data Challenges Quiz

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What is the correct order of the dimensions of knowledge from lowest to highest?

Wisdom, Knowledge, Information, Data

Data, Information, Knowledge, Wisdom (correct)

Wisdom, Information, Knowledge, Data

Data, Knowledge, Information, Wisdom

Which form of knowledge involves know-how, craft, and skill?

Tacit knowledge (correct)

Explicit knowledge

Situational knowledge

Implicit knowledge

What is the main advantage of using the web for database access?

Inexpensive to add Web interface to system

Ease of use of browser software

Few or no changes to database required

All of the above (correct)

What does data administration establish policies and procedures to manage?

Data Signup and view all the answers

What is the role of database administration?

Creating and maintaining databases Signup and view all the answers

Where is explicit knowledge typically located?

In databases and the Web Signup and view all the answers

What is the main purpose of an Entity Relationship Diagram (ERD)?

To document the data model and illustrate relationships between entities Signup and view all the answers

What is the main challenge posed by Big Data?

Massive sets of unstructured/semi-structured data from various sources Signup and view all the answers

What is the purpose of a Data Warehouse?

To store current and historical data from core operational transaction systems Signup and view all the answers

What is the primary function of Data Mart?

To summarize or focus a portion of data for specific users Signup and view all the answers

What does Hadoop enable?

Distributed parallel processing of big data across inexpensive computers Signup and view all the answers

What is the role of Data Cleansing?

To detect and correct data that are incorrect, incomplete, improperly formatted, or redundant Signup and view all the answers

What is the main purpose of Web Mining?

Discovery and analysis of useful patterns and information from the Web Signup and view all the answers

What does Online Analytical Processing (OLAP) support?

Multidimensional data analysis Signup and view all the answers

What is the main role of a Knowledge Management System?

Collective and individual experience of applying knowledge to solve problems Signup and view all the answers

Entity Relationship Diagrams and Big Data Challenges Quiz

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