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You are asked to deploy a new application that has been designed to scale horizontally. The business stakeholders have asked that the application be deployed In us-phoenlx-1. Normal usage requires 2 OCPUs. You expect to have few spikes during the week, that will require up to 4 OCPUs, and a major usage uptick at the end of each month that will require 8 OCPUs. What is the most cost-effective approach to implement a highly available and scalable solution?
Correct Answer: A
Explanation Instance pools let you provision and create multiple Compute instances based off the same instance configuration, within the same region. They also enable integration with other services, such as the Load Balancing service and IAM service, making it easier to manage groups of instances You create an instance pool using an existing instance configuration. You can automatically adjust the number of instances in an instance pool based on performance metrics such as CPU utilization. Autoscaling lets you automatically adjust the number of Compute instances in an instance pool based on performance metrics such as CPU utilization. This helps you provide consistent performance for your end users during periods of high demand, and helps you reduce your costs during periods of low demand. https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Tasks/creatinginstancepool.htm https://blogs.oracle.com/cloud-infrastructure/autoscaling-a-load-balanced-web-application
