Online Access Free CCA-505 Exam Questions

You are working on a project where you need to chain together MapReduce, Pig jobs. You also needs the ability to use forks, decision, and path joins. Which ecosystem project should you use to perform these actions?

• A.Oozie
• B.Sqoop
• C.Zookeeper
• D.HUE
• E.HBase

Which process instantiates user code, and executes map and reduce tasks on a cluster running MapReduce V2 (MRv2) on YARN?

• A.NodeManager
• B.DataNode
• C.ApplicationMaster
• D.TaskTracker
• E.JobTracker
• F.ResourceManager
• G.NameNode

Which YARN process runs as "controller O" of a submitted job and is responsible for resource requests?

• A.NodeManager
• B.JobHistoryServer
• C.ApplicationMaster
• D.ApplicationManager
• E.JobTracker
• F.ResourceManager

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 impalad daemon, the statestored daemon, the catalogd daemon, and the impala shell on your gateway machine
• B.Install the impalad daemon, statestored daemon, and catalogd daemon on each machine in the cluster, and the impala shell on your gateway machine
• C.Install the impslad daemon, statestored daemon, and catalogd daemon on each machine in the cluster and on the gateway node
• D.Install the impalad daemon and the impala shell on your gateway machine, and the statestored daemon and catalog daemon on one of the nodes in the cluster
• E.Install the impalad daemon on each machine in the cluster, the statestored daemon and catalogd daemon on one machine in the cluster, and the impala shell on your gateway machine

On a cluster running CDH 5.0 or above, you use the hadoop fs -put command to write a 300MB file into a previously empty directory using an HDFS block of 64MB. Just after this command has finished writing 200MB of this file, what would another use see when they look in the directory?

• A.They will see the file with a ._COPYING_extension on its name. If they attempt to view the file, they will get a ConcurrentFileAccessException until the entire file write is completed on the cluster.
• B.The directory will appear to be empty until the entire file write is completed on the cluster
• C.They will see the file with its original name. if they attempt to view the file, they will get a ConcurrentFileAccessException until the entire file write is completed on the cluster
• D.They will see the file with a ._COPYING_ extension on its name. if they view the file, they will see contents of the file up to the last completed block (as each 64MB block is written, that block becomes available)