An enterprise logistics company is migrating its workloads to Azure. The company needs to design an architecture that automatically adjusts resources during unpredictable traffic spikes and remains operational if a single datacentre fails. Which of the following statements correctly describe the cloud concepts that meet these architectural goals? (Select TWO).
- Configuring a Virtual Machine Scale Set to automatically add instances during high-traffic periods and remove them when demand decreases represents elasticity.Cevap
- Deploying application instances across multiple Availability Zones to ensure the system remains accessible during a localized power outage represents high availability.Cevap
- CManually upgrading a database virtual machine to a higher performance tier to handle a permanent increase in users is an example of elasticity.
- DReplicating virtual machines to a secondary geographical region to recover from a primary region outage is the primary method to achieve high availability.
Cevap
The correct statements are that configuring virtual machine scale sets to automatically scale based on demand represents elasticity, and deploying across multiple Availability Zones to protect against localized power outages represents high availability.
The correct options are those stating that automatic scaling of virtual machine scale sets represents elasticity, and utilizing multiple Availability Zones within a region to survive localized failures represents high availability. Elasticity is defined by automated scaling in response to fluctuating demand. High availability focuses on eliminating single points of failure within a region to maximize uptime.
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Understanding the differences between high availability, scalability, and elasticity in Azure.
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