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Answer: Deploy two EC2 instances in separate Availability Zones within the same Region, with the database installed and database replication configured.
The correct answer is A. By deploying two EC2 instances in separate Availability Zones within the same Region, you ensure high availability and fault tolerance. Configuring database replication between these instances allows for automatic failover in case one instance goes down, meeting the requirement for high availability and automatic failover.
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How can a company ensure high availability and automatic failover for a critical application's database hosted on Amazon EC2?
A
Deploy two EC2 instances in separate Availability Zones within the same Region, with the database installed and database replication configured.
B
Deploy a single EC2 instance in an Availability Zone, install the database, back up data using an AMI, and leverage AWS CloudFormation for EC2 instance provisioning in case of disruptions.
C
Deploy two EC2 instances across different AWS Regions, install the database on each, establish database replication, and implement a failover mechanism to switch to the secondary Region.
D
Deploy a single EC2 instance in an Availability Zone, install the database, back up data using an AMI, and enable EC2 automatic recovery for instance restoration in the event of a disruptive event.
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