AWS Certified SysOps Administrator – Associate (legacy) — Question 340

A user has configured ELB with Auto Scaling. The user suspended the Auto Scaling terminate process only for a while. What will happen to the availability zone rebalancing process (AZRebalance. during this period?

Answer options

• A. Auto Scaling will not launch or terminate any instances
• B. Auto Scaling will allow the instances to grow more than the maximum size
• C. Auto Scaling will keep launching instances till the maximum instance size
• D. It is not possible to suspend the terminate process while keeping the launch active

Correct answer: B

Explanation

When the Terminate process is suspended, the AZRebalance process can still launch new instances to balance the Availability Zones but cannot terminate the old ones. Consequently, Auto Scaling allows the group to temporarily grow larger than its maximum size (up to 10% above capacity) to facilitate the rebalance. Option A is incorrect because launching is still active, Option C is incorrect because it can exceed the maximum, and Option D is incorrect because AWS allows suspending individual scaling processes independently.