Explanation:NameNode is aware of the files to which the blocks stored on it belong to. 6. Which of the following scenario may not be a good fit for HDFS ?
A. HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file
B. HDFS is suitable for storing data related to applications requiring low latency data access
C. HDFS is suitable for storing data related to applications requiring low latency data access
D. None of the mentioned
Answer:A
Explanation:NameNode is aware of the files to which the blocks stored on it belong to. 6. Which of the following scenario may not be a good fit for HDFS ?
A. HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file B. HDFS is suitable for storing data related to applications requiring low latency data access C. HDFS is suitable for storing data related to applications requiring low latency data access D. None of the mentioned
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 :