Explanation:HDFS can be used for storing archive data since it is cheaper as HDFS allows storing the data on low cost commodity hardware while ensuring a high degree of fault-tolerance. 7. The need for data replication can arise in various scenarios like :
A. Replication Factor is changed
B. DataNode goes down
C. Data Blocks get corrupted
D. All of the mentioned
Answer:A
Explanation:HDFS can be used for storing archive data since it is cheaper as HDFS allows storing the data on low cost commodity hardware while ensuring a high degree of fault-tolerance. 7. The need for data replication can arise in various scenarios like :
A. Replication Factor is changed B. DataNode goes down C. Data Blocks get corrupted D. All of the mentioned
Explanation:Data is replicated across different DataNodes to ensure a high degree of fault-tolerance. 8. ________ is the slave/worker node and holds the user data in the form of Data Blocks.