Which of the following improves availability for a fleet of Amazon EC2 instances?Question 51Answera.Deploy the instances across different AWS Regions of the same AZb.Deploy the instances across different Availability Zones (AZ) in the same AWS Regionc.Deploy the instances in the same AZ across two different AWS Regionsd.Deploy the instances in the same AZ of an AWS Region
Question
Which of the following improves availability for a fleet of Amazon EC2 instances?Question 51Answera.Deploy the instances across different AWS Regions of the same AZb.Deploy the instances across different Availability Zones (AZ) in the same AWS Regionc.Deploy the instances in the same AZ across two different AWS Regionsd.Deploy the instances in the same AZ of an AWS Region
Solution
The option that improves availability for a fleet of Amazon EC2 instances is:
b. Deploy the instances across different Availability Zones (AZ) in the same AWS Region
Here's why:
Amazon EC2 instances are virtual servers in Amazon's Elastic Compute Cloud (EC2) for running applications on the Amazon Web Services (AWS) infrastructure. AWS provides multiple physical locations that are composed of AWS Regions and Availability Zones.
An Availability Zone (AZ) is a distinct location within an AWS Region. Each Region comprises at least two separate AZs. By launching instances in separate Availability Zones, you can protect your applications from the failure of a single location.
So, deploying the instances across different Availability Zones (AZ) in the same AWS Region ensures that even if one AZ goes down, the instances in the other AZs will continue to run, thereby improving the availability of your EC2 instances.
The other options do not improve availability as they either involve deploying instances in the same AZ or across different AWS Regions, which does not provide the same level of redundancy and fault tolerance as deploying across different AZs in the same Region.
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