Which component is responsible for fault tolerance in Hadoop?
A. Secondary NameNode
B. ResourceManager
C. TaskTracker
D. DataNode
Answer: Option A
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Related Questions on Hadoop Architecture
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
B. Stores and manages data blocks
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
C. Executes MapReduce jobs
D. Manages Hadoop ecosystem tools
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