Explanation:With the default replication value, 3, data is stored on three nodes: two on the same rack, and one on a different rack. 9. Above the file systems comes the ________ engine, which consists of one Job Tracker, to which client applications submit MapReduce jobs.
A. MapReduce
B. Google
C. Functional programming
D. Facebook
Answer:A
Explanation:With the default replication value, 3, data is stored on three nodes: two on the same rack, and one on a different rack. 9. Above the file systems comes the ________ engine, which consists of one Job Tracker, to which client applications submit MapReduce jobs.
A. MapReduce B. Google C. Functional programming D. Facebook
Explanation:MapReduce engine uses to distribute work around a cluster. 10. The Hadoop list includes the HBase database, the Apache Mahout ________ system, and matrix operations.