Your company requires a multi-region deployment to provide disaster recovery and maintain high availability for a mission-critical application. Which of the following options best satisfies these requirements?
Deploying the application in multiple AWS Regions
Deploying the application across multiple Availability Zones within a single AWS Region
Using multiple AWS edge locations to serve the application content
Deploying the application in one AWS Region and multiple AWS Local Zones
Setting up the application in multiple AWS Regions ensures that in the case of a regional failure, the application can still remain operational, as different Regions are isolated from one another and do not share single points of failure. This design provides high availability and disaster recovery capabilities. Using Availability Zones only would not protect against a regional outage. Edge locations are used primarily for content delivery and caching and do not support application deployment. AWS Local Zones are an extension of an AWS Region to provide low-latency access to end-users but are not suitable for full-fledged regional disaster recovery on their own.
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What is the difference between an AWS Region and an Availability Zone?
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What is the primary purpose of AWS edge locations?
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How do AWS Local Zones differ from AWS Regions?
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AWS Cloud Practitioner CLF-C02
Cloud Technology and Services
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