Cloudera CCA-470 Actual Free Exam Questions & Community Discussion

Exam Code/Number: CCA-470
Exam Name/Title: Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH)
Certification Provider: Cloudera
Corresponding Certification: CCAH

Exam Questions: 87
Updated On: Jun 01, 2026

Question #19

Under which of the following scenarios would it be most appropriate to consider using faster (e.g., 10 Gigabit) Ethernet as the network fabric for your Hadoop cluster?

A. When the typical workload generates a large amount of output data, significantly larger than the amount of intermediate data.

B. When the typical workload generates a large amount of intermediate data, on the order of the input data itself.

C. When the typical workload consumes a large amount of input data, relative to the entire Canada of HDFS.

D. When the typical workload consists of processor-intensive tasks.

Discussion 0

Correct Answer: A Vote an answer

Question #20

How does the HDFS architecture provide redundancy?

A. DataNodes make copies of their data blocks, and put them on different local disks.

B. Reliance on RAID at each datanode.

C. Reliance on SAN devices as a DataNode interface.

D. Storing multiple replicas of data blocks on different DataNodes.

Discussion 0

Correct Answer: D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #21

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

A. NodeManager

B. JobTracker

C. ResourceManager

D. ApplicationMaster

E. ApplicationMasterService

F. TaskTracker

Discussion 0

Correct Answer: D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #22

On a cluster running MapReduce v1 (MRv1), the value of the mapred.tasktracker.map.tasks.maximum configuration parameter in the mapred-site.xml file should be set to:

A. The maximum number of Map tasks which can run on the cluster as a whole.

B. Half the number of the maximum number of Reduce tasks which can run on the cluster as a whole.

C. The same value on each slave node.

D. Half the number of the maximum number of Reduce tasks which can run simultaneously on an individual node.

E. The maximum number of Map tasks can run simultaneously on an individual node.

Discussion 0

Correct Answer: E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #23

What would be a reasonable configuration of disk drives in a Hadoop datanode?

A. One 1TB disk drive

B. 48 1.5TB disk drives in a JBOD configuration

C. Four 1TB disk drives in a RAID configuration

D. 48 1.5 TB disk drives in a RAID configuration

E. Four 1TB disk drives in a JBOD configuration

Discussion 0

Correct Answer: E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #24

Which three processes does HDFS High Availability (HA) enable on your cluster?

A. Automatically 'fail over' between NameNodes if one goes down

B. Write data to two clusterssimultaneously

C. Configure unlimited hot standby NameNode.

D. Manually 'fail over' between NameNodes

E. Shut one NameNode down for maintenance without halting the cluster

Discussion 0

Correct Answer: A,D,E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #25

Which daemon spawns child JVMs to perform MapReduce processing?

A. NameNode

B. JobTracker

C. Secondary NameNode

D. DataNode

E. TaskTracker

Discussion 0

Correct Answer: E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #26

What two processes must you do if you are running a Hadoop cluster with a single NameNode and six DataNodes, and you want to change a configuration parameter so that it affects all six DataNodes.

A. You must restart all six DataNode daemons to apply the changes to the cluster.

B. You must modify the configuration files on the NameNode only. DataNodes read their configuration from the master nodes.

C. You must restart the NameNode daemon to apply the changes to the cluster

D. You must modify the configuration files on only one of the DataNode machine

E. You don't need to restart any daemon, as they will pick up changes automatically.

F. You must modify the configuration files on each of the six DataNode machines.

Discussion 0

Correct Answer: B,C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #27

In HDFS, you view a file with rw-r--r-- set as its permissions. What does this tell you about the file?

A. As a Filesystem in Userspace (FUSE), HDFS files are available to all user's on a cluster regardless of their underlying POSIX permissions.

B. The file cannot be deleted by anyone

C. The file cannot be deleted by anyone but the owner

D. The file cannot be run as a MapReduce job

E. The file's contents can be modified by the owner, but no-one else

Discussion 0

Correct Answer: C Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Download Free Cloudera CCA-470 Demo

Simply submit your e-mail address below to get started with our free demo of your Cloudera CCA-470 exam.