Question-47: You are working in QuickTechie Inc and QuickTechie.com is expected to grow to 10 times its size in 1 year with a corresponding growth in data and traffic that mirrors the existing patterns of usage. The CIO has set the target of migrating production infrastructure to the cloud within the next 6 months. How will you configure the solution to scale for this growth without making major application changes and still maximize the ROI?
A. Migrate the web application layer to Google's App Engine, MySQL to Cloud Datastore, and NAS to the cloud. Deploy Hadoop servers and RabbitMQ using Deployment Manager.
B. Migrate RabbitMQ to Cloud Pub/Sub, BigQuery to Hadoop, and NAS to Compute Engine with persistent disc storage. Tomcat and Nginx should be deployed using Deployment Manager.
C. Implement instance group management for Tomcat and Nginx. Migrate MySQL to Cloud SQL, RabbitMQ to Cloud Pub/Sub, Hadoop to Cloud Dataproc, and NAS to Compute Engine with Persistent Disk storage.
D. Implement Tomcat and Nginx managed instance groups MySQL should be migrated to Cloud SQL, RabbitMQ to Cloud Pub/Sub, Hadoop to Cloud Dataproc, and NAS to Cloud Storage.
Correct Answer
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: Explanation: Option-4 and Option-3 difference is one says use compute engine and the other to use cloud storage. We believe putting it in cloud storage is better than in compute, with a persistent disk. Decision is between Option-3 and D. Existing NAS is : NAS image storage, logs, backups - 100 TB total storage; 35 TB available For these types of data and size, cloud storage is best suited and provides highest ROI.