AZ-900 Question 87

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B1

  vertical vs horizontal : https://learn.microsoft.com/en-us/azure/azure-sql/database/elastic-scale-introduction?view=azuresql

• Chose B2

  Vertical scaling: adding more resources Horizontal scaling: adding more servers

• 1

  The answers is indeed B: VERTICAL SCALING * Scalability is the system's ability to scale (allocate/deallocate) resources. * Agility is the ability to scale quickly. If that scaling is happening AUTOMATICALLY, then we are talking about Elasticity. * Elasticity is the ability to quickly expand or decrease computer processing, memory, and storage resources to meet changing demands without worrying about capacity planning and engineering for peak usage. It is typically AUTOMATED so it doesn't have to rely on human administrators around the clock, and offers continuous availability of services by avoiding unnecessary slowdowns or service interruptions. With that out of the way * The term that represents the ability to increase the computing capacity of a virtual machine by adding memory or CPUs is VERTICAL SCALING. Vertical scaling, also known as scaling up, involves increasing the resources (such as memory or CPUs) of a single virtual machine to enhance its performance and capabilities IN SHORT: Horizontal scaling refers to adding additional nodes, vertical scaling describes adding more power to your current machines