Online Access Free CCA-410 Exam Questions

Which three distcp features can you utilize on a Hadoop cluster?

• A.Use distcp to copy files only between two clusters or more. You cannot use distcp to copy data between directories inside the same cluster.
• B.Use distcp to copy HBase table files.
• C.Use distcp to run an internal MapReduce job to copy files.
• D.Use distcp to copy data between directories inside the same cluster.
• E.Use distcp to copy physical blocks from the source to the target destination in your cluster.

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

What is the recommended disk configuration for slave nodes in your Hadoop cluster with 6 x 2 TB hard drives?

• A.RAID 10
• B.RAID 1+0
• C.JBOD
• D.RAID 5

What are the permissions of a file in HDFS with the following:rw-rw-r-x?

• A.the owner and group cannot delete the file, but other can
• B.HDFS runs in user space which makes all users with access to the namespace able to read, write and modify all files
• C.the owner and group can read the file other can't
• D.No one can modify the content of the file
• E.the owner and group can modify the contents of the file other can't

Using hadoop's default settings, how much data will be able to store on your hadoop cluster if it is has 12 nodes with 4TB raw diskspace per node allocated to HDFS storage?

• A.Approximately 48TB
• B.Approximately 3TB
• C.Approximately 12TB
• D.Approximately 16TB