AWS Certified SysOps Administrator – Associate (legacy) — Question 215

A user has created an ELB with the availability zone US-East-1.
The user wants to add more zones to ELB to achieve High Availability. How can the user add more zones to the existing ELB?

Answer options

• A. It is not possible to add more zones to the existing ELB
• B. The only option is to launch instances in different zones and add to ELB
• C. The user should stop the ELB and add zones and instances as required
• D. The user can add zones on the fly from the AWS console

Correct answer: B

Explanation

The correct answer is B because to achieve High Availability, the user needs to launch instances in different availability zones and add them to the ELB. Option A is incorrect as zones can be added, and C is wrong because the ELB does not need to be stopped to add zones. Option D is misleading; while zones can be added from the AWS console, instances must still be launched in those zones.