Azure Fundamentals (AZ-900) Study Guide

Appendix B. Answer Keys

Chapter 1 Answer Key

1. C: Cloud computing allows effortless, on-demand scaling, enabling users to increase or decrease compute resources without the need for physical hardware changes. This rapid and flexible approach is possible because the cloud provider manages the underlying infrastructure, handling all upgrades and maintenance. In contrast, scaling in a traditional on-premises environment requires the time-consuming process of manually purchasing, installing, and configuring additional servers or resources.

2. B: Cloud computing provides organizations with scalable storage capacity, allowing them to adjust resources on demand without the need to install or maintain physical hardware. This flexibility is a core advantage of cloud platforms, which offer virtually unlimited and dynamically provisioned storage. In contrast, capacity in a traditional on-premises environment is constrained by physical hardware, often resulting in fixed storage limits that require manual and time-consuming increases. Additionally, cloud platforms provide a wide range of storage types, such as Blob, File, Queue, and Table storage, designed to meet diverse performance and availability needs.

3. D: The pay-as-you-go model is one of the most significant cost advantages of cloud computing. Organizations pay only for the resources they actually consume, removing the need for large up-front hardware investments common in traditional on-premises environments. This model also reduces ongoing ...