What is the primary purpose of Hadoop MapReduce?
A. Data storage and retrieval
B. Real-time data processing
C. Workflow automation
D. Resource management
Answer: Option B
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In Hadoop, what does the term "DataNode" represent?
A. Manages computation resources
B. Stores and manages data blocks
C. Executes MapReduce jobs
D. Manages HDFS metadata
What role does the NameNode play in HDFS?
A. Manages computation resources
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C. Manages metadata of HDFS
D. Executes MapReduce jobs
What is the primary purpose of the Hadoop YARN ResourceManager?
A. Manages computation resources
B. Manages storage layer
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