What is the primary advantage of using data lakes in big data architectures?
A. Centralized storage for structured data
B. Scalability and fault tolerance
C. Handling unstructured data
D. Reduced data storage and transmission costs
Answer: Option C
A. Centralized storage for structured data
B. Scalability and fault tolerance
C. Handling unstructured data
D. Reduced data storage and transmission costs
Answer: Option C
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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