Explanation:HDFS and NoSQL file systems focus almost exclusively on adding nodes to increase performance (scale-out) but even they require node configuration with elements of scale up. 7. Which is the most popular NoSQL database for scalable big data store with Hadoop ?
A. Hbase
B. MongoDB
C. Cassandra
D. None of the mentioned
Answer:A
Explanation:HDFS and NoSQL file systems focus almost exclusively on adding nodes to increase performance (scale-out) but even they require node configuration with elements of scale up. 7. Which is the most popular NoSQL database for scalable big data store with Hadoop ?
A. Hbase B. MongoDB C. Cassandra D. None of the mentioned
Explanation:HBase is the Hadoop database: a distributed, scalable Big Data store that lets you host very large tables — billions of rows multiplied by millions of columns — on clusters built with commodity hardware. 8. The ___________ can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.