Cloudera certification CCA-500 Cloudera Certified Administrator for Apache Hadoop (CCAH)
NO.1 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. mapreduce.map.java.opts=-Xmx3072m
B. mapreduce.map.java.opts=-Xms3072m
C. yarn.application.child.java.opts=-Xsx3072m
D. yarn.application.child.java.opts=-Xmx3072m
Answer: B
Reference: http://hortonworks.com/blog/how-to-plan-and-configure-yarn-in-hdp-2-0/
NO.2 Which YARN daemon or service monitors a Controller's per-application resource using (e.g.,
memory CPU)?
A. ApplicationMaster
B. ResourceManager
C. ApplicationManagerService
D. NodeManager
Answer: A
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Exam Code: CCA-500
Exam Name: Cloudera Certified Administrator for Apache Hadoop (CCAH)
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CCA-500 Practice Test Total Q&A: 60 Questions and Answers
Last Update: 11-02,2016
CCA-500 Test Answers Detail: CCA-500 Practice Test
