Exit CCA-505 Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam
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Q1 Single choice

You are migrating a cluster from MapReduce version 1 (MRv1) to MapReduce version2 (MRv2) on YARN.
To want to maintain your MRv1 TaskTracker slot capacities when you migrate.

What should you do?

  • A

    Configure yarn.applicationmaster.resource.memory-mb and yarn.applicationmaster.cpu-vcores so that ApplicationMaster container allocations match the capacity you require.

  • B

    You don't need to configure or balance these properties in YARN as YARN dynamically balances resource management capabilities on your cluster

  • C

    Configure yarn.nodemanager.resource.memory-mb and yarn.nodemanager.resource.cpu-vcores to match the capacity you require under YARN for each NodeManager

  • D

    Configure mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum ub yarn.site.xml to match your cluster's configured capacity set by yarn.scheduler.minimum-allocation

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