Amazon Exam DAS-C01 Topic 6 Question 60 Discussion

Actual exam question for Amazon's DAS-C01 exam

Question #: 60
Topic #: 6

A company uses an Amazon EMR cluster with 50 nodes to process operational data and make the data available for data analysts These jobs run nightly use Apache Hive with the Apache Jez framework as a processing model and write results to Hadoop Distributed File System (HDFS) In the last few weeks, jobs are failing and are producing the following error message

"File could only be replicated to 0 nodes instead of 1"

A data analytics specialist checks the DataNode logs the NameNode logs and network connectivity for potential issues that could have prevented HDFS from replicating data The data analytics specialist rules out these factors as causes for the issue

Which solution will prevent the jobs from failing'?

AMonitor the HDFSUtilization metric. If the value crosses a user-defined threshold add task nodes to the EMR cluster

BMonitor the HDFSUtilization metri.c If the value crosses a user-defined threshold add core nodes to the EMR cluster

CMonitor the MemoryAllocatedMB metric. If the value crosses a user-defined threshold, add task nodes to the EMR cluster

DMonitor the MemoryAllocatedMB metric. If the value crosses a user-defined threshold, add core nodes to the EMR cluster.

Show Suggested Answer

Suggested Answer: C

by Justine at Jul 26, 2022, 01:30 PM

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