Ensurepass  QUESTION 21 Which YARN process runs as "controller O" of a submitted job and is responsible for resource requests?   A. ResourceManager B. NodeManager C. JobHistoryServer D. ApplicationMaster E. JobTracker F. ApplicationManager   Answer: D     QUESTION 22 Which process instantiates user code, and executes map and reduce tasks on a cluster running MapReduce V2 (MRv2) on YARN?   A. NodeManager B. ApplicationMaster C. ResourceManager Read more [...]
Ensurepass  QUESTION 11 You have a Hadoop cluster running HDFS, and a gateway machine external to the cluster from which clients submit jobs. What do you need to do in order to run on the cluster and         submit jobs from the command line of the gateway machine?   A. Install the impslad daemon, statestored daemon, and catalogd daemon on each machine in the cluster and on the gateway node B. Install the impalad daemon on each machine in the cluster, the statestored Read more [...]
Ensurepass    Exam A   QUESTION 1 Your cluster implements HDFS High Availability (HA). Your two NameNodes are named nn01 and nn02. What occurs when you execute the command: hdfs haadmin ç’®ailover nn01 nn02   A. nn02 becomes the standby NameNode and nn01 becomes the active NameNode B. nn02 is fenced, and nn01 becomes the active NameNode C. nn01 becomes the standby NamNode and nn02 becomes the active NAmeNode D. nn01 is fenced, and nn02 becomes the active NameNode Read more [...]