CompTIA
CV0-003 · Question #240
CV0-003 Question #240: Real Exam Question with Answer & Explanation
The correct answer is A: Change the server template size for Inxpc003 to 2x-large.. High CPU and memory utilization on a specific instance is best resolved by vertical scaling - upgrading that instance to a larger preconfigured template size.
Operations and Support
Question
A recent advertisement campaign has increased traffic to an e-commerce application that is hosted within a public cloud environment. Customers are reporting that it takes too long to load their pages and submit orders. A cloud administrator looks at the metrics from the environment and sees high utilization of the CPU and memory resources. The cloud provider offers several preconfigured sizes for server template: x-small, small, medium, large, x-large, and 2x-large. Given an expected increase in workload, which of the following is the BEST solution to improve application performance?
Exhibit
Options
- AChange the server template size for Inxpc003 to 2x-large.
- BProvision additional Inxpc servers using the 2x-large template.
- CAdd memory to Inxpc002, Inxpc003, and Inxpc003.
- DChange the role of Inxw001 from web to application.
Explanation
High CPU and memory utilization on a specific instance is best resolved by vertical scaling - upgrading that instance to a larger preconfigured template size.
Common mistakes.
- B. Provisioning additional servers is horizontal scaling and aids load distribution, but does not resolve the per-instance resource saturation if traffic is not balanced across the new instances.
- C. Cloud virtual machines do not support adding hardware resources directly to a running instance - resource changes require modifying the instance template or size.
- D. Reassigning the web server role to an application role does not add compute resources and does not address the underlying CPU and memory constraint.
Concept tested. Vertical scaling to resolve resource saturation
Reference. https://learn.microsoft.com/en-us/azure/virtual-machines/resize-vm
Topics
#vertical scaling#cloud sizing#performance optimization#resource utilization
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