What is the primary goal of "data deduplication" in big data storage and processing?
A. To increase data variety
B. To reduce storage space and data redundancy
C. To improve data visualization
D. To slow down data velocity
Answer: Option B
A. To increase data variety
B. To reduce storage space and data redundancy
C. To improve data visualization
D. To slow down data velocity
Answer: Option B
What is the primary characteristic of "big data"?
A. Small volume of data
B. High velocity of data
C. Variety of data sources
D. Low complexity of data
In the context of big data, what does the "3Vs" represent?
A. Velocity, Value, Variability
B. Volume, Variety, Velocity
C. Volume, Value, Variety
D. Velocity, Veracity, Variety
A. Java
B. Python
C. Hadoop
D. SQL
What is the main purpose of the Hadoop Distributed File System (HDFS) in a Hadoop ecosystem?
A. Real-time data processing
B. Data storage and retrieval
C. Data visualization
D. Data encryption
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