Microsoft Azure Architect Technologies (AZ-300) Practice Exam

What is the primary outcome of scaling up in a computing instance?

1. Increases resources available to application

2. Increases the number of instances running

3. Reduces the physical limitations of the host

4. Enhances user interface capabilities

The correct answer is: Increases resources available to application

Scaling up in a computing instance refers to the process of increasing the resources allocated to a single instance, such as upgrading the CPU, memory, or storage capacity. The primary outcome of this approach is that it directly increases the resources available to the application running on that instance. By providing more powerful hardware, you enable the application to handle more intensive workloads, improve performance, and support a higher volume of users or transactions. This differs from scaling out, which involves adding more instances to distribute the workload, thereby increasing the overall capacity through horizontal scaling. Scaling up focuses on enhancing the single instance's capabilities rather than expanding the number of instances. Understanding this concept is crucial in the context of Azure since it allows architects to make informed decisions about resource management based on the needs of their applications and workloads. In scenarios where applications require an increase in performance due to resource-intensive tasks, scaling up can be an effective strategy to meet those demands without complicating the architecture with additional instances.