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Questions and Answers
Which database architecture is most closely aligned with traditional, enterprise-level relational databases?
Which database architecture is most closely aligned with traditional, enterprise-level relational databases?
- Client/Server
- Data Warehouse
- Centralized (correct)
- Distributed
Which of the following is typically not a responsibility of a data analyst?
Which of the following is typically not a responsibility of a data analyst?
- data visualization
- writing SQL
- big data analysis (correct)
- transaction data analysis
What type of data is NOT typically considered 'big data'?
What type of data is NOT typically considered 'big data'?
- Keyword search data
- Billing information (correct)
- Clicks on webpages
- Images
Which database is likely to be used for a web app with a significant commitment to JavaScript?
Which database is likely to be used for a web app with a significant commitment to JavaScript?
Which of the following is typically not a primary responsibility of a data scientist?
Which of the following is typically not a primary responsibility of a data scientist?
What type of chart is best suited for showing trends over time?
What type of chart is best suited for showing trends over time?
Which of the following is not a currently popular database industry credential?
Which of the following is not a currently popular database industry credential?
What is the main purpose of an OLAP cube?
What is the main purpose of an OLAP cube?
Which of the following technical job titles typically does not report to the DBA?
Which of the following technical job titles typically does not report to the DBA?
Which of the following would generally not be a typical responsibility of the DBA?
Which of the following would generally not be a typical responsibility of the DBA?
What type of database is best suited for storing relationships between people?
What type of database is best suited for storing relationships between people?
Which file extension is a type of XML file?
Which file extension is a type of XML file?
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Study Notes
Database Architectures
- Centralized client/server architecture is most closely aligned with traditional, enterprise-level relational databases.
OLAP Cube
- An OLAP cube is a read-only snapshot of data organized in levels and hierarchies of categories.
Big Data
- Big data typically does not include billing information.
Database Selection
- MongoDB would probably be considered for a web app if the company has a significant commitment to JavaScript.
Database Types
- Graph databases would most likely be used for tracking connections between people.
File Extensions
.xmlfile extension is associated with XML files.
Data Visualization
- Line charts are best used for showing trends over time.
Database Architectures
- Centralized client/server architecture is most closely aligned with traditional, enterprise-level relational databases.
OLAP Cube
- An OLAP cube is a read-only snapshot of data organized in levels and hierarchies of categories.
Big Data
- Big data typically does not include billing information.
Database Selection
- MongoDB would probably be considered for a web app if the company has a significant commitment to JavaScript.
Database Types
- Graph databases would most likely be used for tracking connections between people.
File Extensions
.xmlfile extension is associated with XML files.
Data Visualization
- Line charts are best used for showing trends over time.
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