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Only need to practice for 20 to 30 hours

You will get to know the valuable exam tips and the latest question types in our CCA-470 certification training files, and there are special explanations for some difficult questions, which can help you to have a better understanding of the difficult questions. All of the questions we listed in our CCA-470 practice exam materials are the key points for the IT exam, and there is no doubt that you can practice all of CCA-470 best questions within 20 to 30 hours, even though the time you spend on it is very short, however the contents you have practiced are the quintessence for the IT exam. And of course, if you still have any misgivings, you can practice our CCA-470 certification training files again and again, which may help you to get the highest score in the IT exam.

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Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) Sample Questions:

1. Identify four characteristics of a 300MB file that has been written to HDFS with block size of 128MB and all other Hadoop defaults unchanged?

A) The third Initial block will be 44 MB
B) The file will consume 1152MB of space in the cluster
C) All three blocks will be 128MB
D) Each block will be replicated nine times
E) Each block will be replicated three times
F) Two of the initial blocks will be 128MB
G) The file will be split into three blocks when initially written into the cluster
H) The third block will be 64MB

2. Identify which two daemons typically run each slave node in a Hadoop cluster running MapReduce v1 (MRv1)

A) JobTracker
B) Secondary NameNode
C) NodeManager
D) NameNode
E) TaskTracker
F) DataNode

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

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

4. What is the Secondary NameNode?

A) A process purely intended to perform backups of the NameNode.
B) A process that performs a checkpoint operation on the files produced by the NameNode.
C) A data channel between the primary name node and the tertiary NameNode.
D) An alternate data channel for clients to reach HDFS, should the NameNode become too busy.
E) A standby NameNode, for high availability.

5. How does the NameNode know DataNodes are available on a cluster running MapReduce v1 (MRv1)

A) The NameNode broadcasts a heartbeat on the network on a regular basis, and DataNodes respond.
B) DataNodes heartbeat in the master on a regular basis.
C) The NameNode send a broadcast across the network when it first starts, and DataNodes respond.
D) DataNodes listed in the dfs.hosts file. The NameNode uses as the definitive list of available DataNodes.

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