Name: 2025 CertBus CCA-500 exam dumps, CCA-500 PDF+VCE practice, 100% Pass Guaranteed
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SKU: CCA-500
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CCA-500 Q&A's Detail

Exam Code:	CCA-500
Total Questions:	60

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CCA-500 Online Practice Questions and Answers

Questions 1

For each YARN job, the Hadoop framework generates task log file. Where are Hadoop task log files stored?

A. Cached by the NodeManager managing the job containers, then written to a log directory on the NameNode

B. Cached in the YARN container running the task, then copied into HDFS on job completion

C. In HDFS, in the directory of the user who generates the job

D. On the local disk of the slave mode running the task

Show Answer

Questions 2

Which YARN process run as "container 0" of a submitted job and is responsible for resource qrequests?

A. ApplicationManager

B. JobTracker

C. ApplicationMaster

D. JobHistoryServer

E. ResoureManager

F. NodeManager

Show Answer

Questions 3

Which process instantiates user code, and executes map and reduce tasks on a cluster running MapReduce v2 (MRv2) on YARN?

A. NodeManager

B. ApplicationMaster

C. TaskTracker

D. JobTracker

E. NameNode

F. DataNode

G. ResourceManager

Show Answer

Questions 4

Which two features does Kerberos security add to a Hadoop cluster? (Choose two)

A. User authentication on all remote procedure calls (RPCs)

B. Encryption for data during transfer between the Mappers and Reducers

C. Encryption for data on disk ("at rest")

D. Authentication for user access to the cluster against a central server

E. Root access to the cluster for users hdfs and mapred but non-root access for clients

Show Answer

Questions 5

You are running a Hadoop cluster with MapReduce version 2 (MRv2) on YARN. You consistently see that MapReduce map tasks on your cluster are running slowly because of excessive garbage collection of JVM, how do you increase JVM heap size property to 3GB to optimize performance?

A. yarn.application.child.java.opts=-Xsx3072m

B. yarn.application.child.java.opts=-Xmx3072m

C. mapreduce.map.java.opts=-Xms3072m

D. mapreduce.map.java.opts=-Xmx3072m

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