QUESTION: 85

A distributed team of data analysts share computing resources on an interactive cluster with autoscaling configured. In order to better manage costs and query throughput, the workspace administrator is hoping to evaluate whether cluster upscaling is caused by many concurrent users or resource-intensive queries.

In which location can one review the timeline for cluster resizing events?

Workspace audit logs
Driver's log file
Ganglia
Cluster Event Log
Executor's log file

Answer(s): D

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QUESTION: 86

When evaluating the Ganglia Metrics for a given cluster with 3 executor nodes, which indicator would signal proper utilization of the VM's resources?

The five Minute Load Average remains consistent/flat
Bytes Received never exceeds 80 million bytes per second
Network I/O never spikes
Total Disk Space remains constant
CPU Utilization is around 75%

Answer(s): E

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QUESTION: 87

Which of the following technologies can be used to identify key areas of text when parsing Spark Driver log4j output?

Regex
Julia
pyspsark.ml.feature
Scala Datasets
C++

Answer(s): A

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QUESTION: 88

You are testing a collection of mathematical functions, one of which calculates the area under a curve as described by another function.

assert(myIntegrate(lambda x: x*x, 0, 3) [0] == 9)

Which kind of test would the above line exemplify?

Unit
Manual
Functional
Integration
End-to-end

Answer(s): A

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QUESTION: 85

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QUESTION: 88