Free CCA-470 Questions for Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) CCA-470 Exam as PDF & Practice Test Engine

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: Aug 18, 2026

Question #1

In the context of configuring a Hadoop cluster for HDFS High Availability (HA), 'fencing' refers to:

A. Isolating both HA NameNodes to prevent a client application from killing the NameNode daemons.

B. Isolating the standby NameNode from write access to the fsimage and edits files.

C. Isolating the cluster's master daemon to limit write access only to authorized clients.

D. Isolating a failed NameNode from write access to the fsimage and edits files so that is cannot resume write operations if it recovers.

Discussion 0

Correct Answer: D Vote an answer

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Question #2

You are running a Hadoop cluster with all monitoring facilities properly configured. Which scenario will go undetected?

A. A DataNode is disconnected from the cluster.

B. HDFS is almost full.

C. The NameNode goes down.

D. Map or reduce tasks that are stuck in an infinite loop.

E. MapReduce jobs that are causing excessive memory swaps.

Discussion 0

Correct Answer: D Vote an answer

Question #3

What information is stored on disk on the NameNode? (Choose 4)

A. A catalog of DataNodes and the blocks that are stored on them.

B. File permissions of the files in HDFS.

C. An edit log of changes that have been made since the last backup of the NameNode.

D. The status of the heartbeats of each DataNode.

E. Names of the files in HDFS.

F. The directory structure of the files in HDFS.

G. An edit log of changes that have been made since the last snapshot compaction by the Secondary NameNode.

Discussion 0

Correct Answer: A,E,F,G Vote an answer

Question #4

You have a cluster running with the Fair in Scheduler enabled. There are currently no jobs running on the cluster, and you submit a job A, so that only job A is running on the cluster. A while later,
you submit job B, Now job A and job B are running on the cluster at the same time.
Which of the following describes how the Fair Scheduler operates? (Choose 2)

A. When job A gets submitted, it doesn't consume all the task slots.

B. When job A gets submitted, it consumes all the task slots.

C. When job B gets submitted, job A has to finish first, before job B can get scheduled.

D. When job B gets submitted, it will get assigned tasks, while job A continues to run with fewer tasks.

Discussion 0

Correct Answer: B,C Vote an answer

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Question #5

You has a cluster running with the Fail Scheduler enabled. There are currently no jobs running on the cluster you submit a job A, so that only job A is running on the cluster. A while later, you submit job B.
Now job A and Job B are running on the cluster al the same time. How will the Fair' Scheduler handle these two Jobs?

A. When job B gets submitted, Job A has to finish first, before job it can get scheduled.

B. When job B gets submitted, it will get assigned tasks, while job A continues to run with fewer tasks.

C. When job A gets submitted, it consumes all the task slot

D. When job A gets submitted, it doesn't consume all the task slot

Discussion 0

Correct Answer: B Vote an answer

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Question #6

When determining the most appropriate ratio of processor cores to disk drives for a Hadoop cluster, what are the considerations?

A. Processors and disk drives per machine, the workload doesn't matter

B. Processor core counts and workload type, the ratio doesn't matter

C. Disk drives per core without consideration to workload types

D. Disk drives per core and workload types

E. Disk drives per machine, nothing else matters.

Discussion 0

Correct Answer: D Vote an answer

Question #7

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

A. 48 1.5TB disk drives in a JBOD configuration

B. 48 1.5 TB disk drives in a RAID configuration

C. One 1TB disk drive

D. Four 1TB disk drives in a RAID configuration

E. Four 1TB disk drives in a JBOD configuration

Discussion 0

Correct Answer: E Vote an answer

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Question #8

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. Two of the initial blocks will be 128MB

B. The third Initial block will be 44 MB

C. The file will be split into three blocks when initially written into the cluster

D. Each block will be replicated three times

E. The third block will be 64MB

F. All three blocks will be 128MB

G. The file will consume 1152MB of space in the cluster

H. Each block will be replicated nine times

Discussion 0

Correct Answer: A,B,C,D Vote an answer

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Question #9

Under which scenario 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 workloads consists of processor-intensive tasks.

B. When the typical workloads consumes a large amount of input data, relative to the entire capacity of HDFS.

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

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

Discussion 0

Correct Answer: C Vote an answer

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Free CCA-470 Questions for Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) CCA-470 Exam as PDF & Practice Test Engine

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