Point out the wrong statement.
A. Cluster-wide status centralization service is essential for management and serialization tasks across a large distributed set of servers
B. Within ZooKeeper, an application can create what is called a znode
C. The znode can be updated by any node in the cluster, and any node in the cluster can register to be informed of changes to that znode
D. None of the mentioned
Answer: Option D
What is the primary purpose of Sqoop in Hadoop?
A. Import and export data between Hadoop and relational databases
B. Perform data analytics in Hadoop
C. Manage computation resources
D. Execute MapReduce jobs
In Sqoop, what does the term "Import" refer to?
A. Manage computation resources
B. Execute MapReduce jobs
C. Transfer data from Hadoop to a relational database
D. Transfer data from a relational database to Hadoop
What is the role of Sqoop connectors in the data import/export process?
A. Define the structure of the data
B. Manage computation resources
C. Transfer data between Hadoop and relational databases
D. Execute MapReduce jobs
In Sqoop, what does the term "Free-form query import" refer to?
A. Transfer data from Hadoop to a relational database
B. Import data based on a user-defined SQL query
C. Transfer data from a relational database to Hadoop
D. None of the above

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