A website uses EC2 instances with Auto Scaling and EFS. How can the company optimize costs?

The correct answer is C. Reconfigure the Auto Scaling group to use a target tracking scaling policy. Option C ensures dynamic scaling based on demand using a target tracking scaling policy, optimizing costs. Option A results in over-provisioning, leading to higher costs. Option B increases costs by using larger instances. Option D is not feasible as instance store volumes are…

Submitted by rania.sa· Mar 4, 2026Design Cost-Optimized Architectures

Question

Options

AReconfigure the Auto Scaling group to set a desired number of instances. Turn off scheduled
BCreate a new launch template version that uses larger EC2 instances.
CReconfigure the Auto Scaling group to use a target tracking scaling policy.
DReplace the EFS volume with instance store volumes.

How the community answered

(46 responses)

A
17% (8)
B
4% (2)
C
70% (32)
D
9% (4)

Explanation

Option C ensures dynamic scaling based on demand using a target tracking scaling policy, optimizing costs. Option A results in over-provisioning, leading to higher costs. Option B increases costs by using larger instances. Option D is not feasible as instance store volumes are ephemeral and unsuitable for shared storage like EFS.

Community Discussion

No community discussion yet for this question.

Full SAA-C03 Practice