Printable PDFCloudera CCA-505 Exam Questions & Answers
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Vendor: Cloudera
Exam Code: CCA-505
Exam Name: Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam
Certification Provider: Cloudera
Total Questions: 45 Q&A
Updated on: Jul 04, 2026
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CCA-505 Online Practice Questions and Answers
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 property to 3GB to optimize performance?
A. Yarn.application.child.java.opts-Xax3072m
B. Yarn.application.child.java.opts=-3072m
C. Mapreduce.map.java.opts=-Xmx3072m
D. Mapreduce.map.java.opts=-Xms3072m
Each node in your Hadoop cluster, running YARN, has 64 GB memory and 24 cores. Your yarn- site.xml
has the following configuration:
You want YARN to launch no more than 16 containers per node. What should you do?
A. No action is needed: YARN's dynamic resource allocation automatically optimizes the node memory and cores
B. Modify yarn-site.xml with the following property:
C. Modify yarn-site.xml with the following property:
D. Modify yarn-site.xml with the following property:
Your cluster is running MapReduce vserion 2 (MRv2) on YARN. Your ResourceManager is configured to use the FairScheduler. Now you want to configure your scheduler such that a new user on the cluster can submit jobs into their own queue application submission. Which configuration should you set?
A. You can specify new queue name when user submits a job and new queue can be created dynamically if yarn.scheduler.fair.user-as-default-queue = false
B. Yarn.scheduler.fair.user-as-default-queue = false and yarn.scheduler.fair.allow-undeclared- people = true
C. You can specify new queue name per application in allocation.fair.allow-undeclared-people = true automatically assigned to the application queue
D. You can specify new queue name when user submits a job and new queue can be created dynamically if the property yarn.scheduler.fair.allow-undecleared-pools = true
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