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Cloudera CCA-410 Exam Syllabus Topics:

Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:

Question 1

The most important consideration for slave nodes in a Hadoop cluster running production jobs that require short turnaround times is:

A. The ratio between the number of processor cores and the amount of memory.
B. The ratio between the number of processor cores and number of disk drives.
C. The ratio between the amount of memory and the total storage capacity.
D. The ratio between the amount of memory and the number of disk drives.
E. The ratio between the number of processor cores and total storage capacity.

Question 2

You are running two Hadoop clusters(cluster1 and cluster2), they run identical versions of hadoop.
You want to copy the data inside /home/foo/cluster1 to cluster2 into the directory /home/bar/
What is the correct distcp syntax to copy one directory tree from one cluster to the other cluster?

A. $ distCp hdfs://cluster1/home/foo hdfs://cluster2/home/bar/
B. $ Hadoop distCp cluster1:/home/foo cluster2:/home/bar/
C. $ distCp cluster1:/home/foo cluster2:/home/bar/
D. $ hadoop distCp hdfs://cluster1/home/foo hdfs://cluster2/home/bar/

Question 3

You configure Hadoop cluster with both MapReduce frameworks, MapReduce v1 (MRv1) and MapReduce v2 (MRv2/YARN). Which two MapReduce (computational) daemons do you need to configure to run on your master nodes?

A. JobTracker
B. ResourceManager
C. JournalNode
D. ApplicationMaster
E. NodeManager

Question 4

Which MapReduce v2 (MR2/YARN) daemon is a per-machine slave responsible for launching application containers and monitoring application resources usage?

A. TaskTracker
B. JobTracker
C. ResourceManager
D. ApplicationMasterService
E. ApplicationMaster
F. NodeManager

Question 5

The failure of which daemon makes HDFS unavailable on a cluster running MapReduce v1 (MRv1)?

A. Resource Manager
B. DataNode
C. Application Manager
D. NameNode
E. Secondary NameNode
F. Node Manager

Solutions: