Oracle Cloud Infrastructure 2020 Architect Associate — Question 37

You are running an online gaming application hosted on a VM.Standard2.1 instance shape in Oracle Cloud Infrastructure. As the game becomes popular, you identify network throughput as a bottleneck on your instance when uploading user data.
Though you want to resolve the issue, you want to observe the demand for a week before adding new application instances.
Which action is the most efficient way to resolve this issue?

Answer options

• A. Add a secondary virtual network interface card (VNIC).
• B. Change shape of the instance to a higher network bandwidth instance.
• C. Delete the instance while preserving boot volume and spin up a new higher network bandwidth instance with this boot volume.
• D. Change the performance tier of attached block volume to High Performance.

Correct answer: B

Explanation

The most efficient solution is to change the shape of the instance to a higher network bandwidth instance, as this directly addresses the network throughput bottleneck. Adding a secondary VNIC may not sufficiently increase bandwidth, while deleting the instance for a new one is more disruptive and time-consuming. Changing the block volume performance tier does not impact the instance's network throughput capabilities.