Exam: AWS Certified Cloud Practitioner 0 Likes
A company has a single Amazon EC2 instance. The company wants to (CLF-C02)
A company has a single Amazon EC2 instance. The company wants to adopt a highly available architecture.
What can the company do to meet this requirement?
A) Scale vertically to a larger EC2 instance size.
B) Scale horizontally across multiple Availability Zones.
C) Purchase an EC2 Dedicated Instance.
D) Change the EC2 instance family to a compute optimized instance.
Solution
Correct answer: B) Scale horizontally across multiple Availability Zones.
To make an Amazon EC2 highly available, it is necessary to distribute the instances in several availability zones.
An availability zone is a set of geographically isolated data centers within an AWS region.
Distributing instances across several availability zones reduces the impact of a possible infrastructure problem, such as a natural disaster or power failure.
If one instance or availability zone becomes unavailable, instances in other availability zones will continue to operate.
This is the correct answer to the question, as it provides the greatest possible availability.
Other options, such as scaling vertically or buying a dedicated instance, can improve performance or security, but not availability.
Category: Cloud concepts