Which term represents the ability to increase the computing capacity of a virtual machine by adding memory or CPUs?
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A. B. C. D.B
Vertical scaling, also known as scale up and scale down, means increasing or decreasing virtual machine (VM) sizes in response to a workload. Compare this behavior with horizontal scaling, also referred to as scale out and scale in, where the number of VMs is altered depending on the workload.
https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-vertical-scale-reprovisionThe correct answer is B. a subscription.
In an Azure environment, a subscription is a logical container for resources such as virtual machines, storage accounts, and databases. When you create an Azure subscription, you can choose a payment method and associate it with the subscription. This payment method can be a credit card, invoice, or another payment option, depending on your region and account type.
By creating a subscription for each department, you can ensure that each department can use a different payment option for the Azure services it consumes. For example, you can associate one subscription with a credit card for department A and another subscription with an invoice for department B. This allows each department to have its own billing account and control over its own spending.
Reservations are used to pre-purchase resources, such as virtual machines or SQL databases, for a specific term. This can help you save money and ensure capacity for your workloads, but it is not related to payment options for different departments.
Resource groups are logical containers for resources that share the same lifecycle, such as virtual machines, storage accounts, and virtual networks. They are not related to payment options either.
Container instances are a way to deploy and run containers on Azure without managing virtual machines or other infrastructure. They are not related to payment options for different departments either.
The correct answer is B. vertical scaling.
Vertical scaling, also known as scaling up, is the process of increasing the computing capacity of a single virtual machine (VM) by adding more memory or CPUs. This is done by upgrading the VM to a larger size within the same family or by adding more resources, such as adding more RAM or increasing the CPU count.
Agility refers to the ability to quickly and efficiently respond to changing business needs, such as scaling up or down the resources in response to demand.
Horizontal scaling, also known as scaling out, refers to the process of adding more virtual machines to a resource pool to distribute the workload and increase capacity.
Elasticity is the ability of a system to automatically provision and deprovision resources based on demand, ensuring that the system can scale up or down quickly and efficiently without human intervention.
Therefore, in the context of the question, vertical scaling is the correct term to represent the ability to increase the computing capacity of a virtual machine by adding memory or CPUs.