alleryStart learning →Horizontal scaling on AWS is best characterised as:
AMigrating the workload to S3 Glacier
BAdding more identical instances behind a load balancer to share traffic
CSwitching all servers to a single AZ for simplicity
DIncreasing the CPU and memory of a single existing EC2 instance
Answer & Solution
Correct answer: B. Adding more identical instances behind a load balancer to share traffic
Scale-out adds instances
vertical scale (scale-up) grows a single instance.
Glacier is archival storage
consolidating into one AZ removes resilience.
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