Practice Test 1 | Google Cloud Certified Professional Cloud Architect | Dumps | Mock Test
Your company’s test suite is a custom C++ application that runs tests throughout each day on Linux virtual machines. The full test suite takes several hours to complete, running on a limited number of on premises servers reserved for testing. Your company wants to move the testing infrastructure to the cloud, to reduce the amount of time it takes to fully test a change to the system, while changing the tests as little as possible. Which cloud infrastructure should you recommend?
A. Google Cloud Dataproc to run Apache Hadoop jobs to process each test
B. Google App Engine with Google Operations Suite (formerly Stackdriver) for logging
C. Google Compute Engine managed instance groups with auto-scaling
D. Google Compute Engine unmanaged instance groups and Network Load Balancer
Correct Answer C
Feedback
A – Google Cloud Dataproc to run Apache Hadoop jobs to process each test
Apache Hadoop runs Java not C++; If the questions meant to use Hadoop to manage and process the test, it’s overkill and also needs significant changes to the testing infrastructure to integrate with Dataproc.
B – Google App Engine with Google Operations Suite (formerly Stackdriver) for logging
App Engine did not natively support C++, also it’s probably hard to port their “runs tests throughout each day on Linux virtual machines” to App Engine “while changing the tests as little as possible”; Operations Suite (formerly Stackdriver) logging won’t help porting the test to GCP, either.
Between C and D, the main difference is managed or unmanaged instance group
Unmanaged instance groups are groups of dissimilar instances that you can arbitrarily add and remove from the group. Unmanaged instance groups do not offer autoscaling, rolling update support, or the use of instance templates so Google recommends creating managed instance groups whenever possible. Use unmanaged instance groups only if you need to apply load balancing to your pre-existing configurations or to groups of dissimilar instances. https://cloud.google.com/compute/docs/instance-groups/
From the question, there is no such requirement for unmanaged instance group and not mention that dissimilar Linux machine types are required.
In addition, judging from what they suffered “The full test suite takes several hours to complete, running on a limited number of on-premises servers”, it seems they simply need more computation power – bigger and/or more instances for the testing. So the managed instance group with autoscaling is preferred.
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