Question

Which of the following statements is most accurate regarding scalability?

a) Scalable systems divert traffic to the instances with the least load.

b) Scalable systems divert traffic to the instances with the most capacity.

c) Scalable systems divert traffic based on priority.

d) Scalable systems divert traffic to multiple regions.

Answer 1

a) Scalable systems divert traffic to the instances with the least load.

When one of the instances has a smaller load, it will divert traffic to the least-loaded instance to give the other instances a chance to lessen their load.