adplus-dvertising
frame-decoration

Question

What is the role of the master node in a Hadoop MapReduce cluster?

a.

Processing user's requests

b.

Executing map and reduce tasks

c.

Distributing and scheduling work on tasktrackers

d.

Reporting status updates to the jobtracker

Posted under Big Data Computing

Answer: (c).Distributing and scheduling work on tasktrackers Explanation:The master node in a Hadoop MapReduce cluster is responsible for distributing and scheduling work on tasktrackers.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What is the role of the master node in a Hadoop MapReduce cluster?

Similar Questions

Discover Related MCQs

Q. In a MapReduce job, what is the unit of work that users submit to the jobtracker?

Q. How does the jobtracker divide input data in a Hadoop MapReduce cluster?

Q. What is the default number of map and reduce slots on a tasktracker in Hadoop?

Q. Why does the Hadoop master represent a single point of failure?

Q. What is the primary design goal of the Hadoop Distributed File System (HDFS)?

Q. What is the role of the namenode in HDFS?

Q. What is the default block size in HDFS?

Q. What is the purpose of the replication factor in HDFS?

Q. How does HDFS ensure fault tolerance for data blocks?

Q. What is the role of splits in the MapReduce process?

Q. What is the purpose of the circular memory buffer in a map task?

Q. When does a map task write its partial output data to disk?

Q. What is the purpose of the copy phase in reduce tasks?

Q. In Hadoop MapReduce, when is the output of the reduce() function written to the distributed file system?

Q. What does the replication factor in HDFS determine?

Q. What is the role of the jobtracker in Hadoop MapReduce?

Q. Which phase in a MapReduce job is responsible for sorting the map output data?

Q. In Hadoop MapReduce, how are map tasks distributed across the cluster?

Q. What is the purpose of splits in Hadoop MapReduce?