You have a primary database set up to use read replicas running on an instance in US East 1. You have three read replicas also in US East 1 and two additional replicas in US West 2. You are trying to create a new replica in EU West 1 and are getting an error. What do you need to do to resolve this error and successfully create a new read replica in EU West 1?
A. Contact AWS about raising the number of reading replicas allowed from 5 to 8.
B. Turn off one of the read replicas in US East 1 and then you can create the instance in EU West 1.
C. Turn on the Multi-AZ option for your primary instance.
D. You can’t create the replica in EU West 1. Instead, create the replica in another US region to avoid regulations about reading replicas in the EU.
Answer:B
You have a primary database set up to use read replicas running on an instance in US East 1. You have three read replicas also in US East 1 and two additional replicas in US West 2. You are trying to create a new replica in EU West 1 and are getting an error. What do you need to do to resolve this error and successfully create a new read replica in EU West 1?
A. Contact AWS about raising the number of reading replicas allowed from 5 to 8. B. Turn off one of the read replicas in US East 1 and then you can create the instance in EU West 1. C. Turn on the Multi-AZ option for your primary instance. D. You can’t create the replica in EU West 1. Instead, create the replica in another US region to avoid regulations about reading replicas in the EU.
Explanation: The root issue here is that a read replica setup only allows for five read replicas. This is not a limit that can be raised by AWS either, so the option “Contact AWS about raising the number of reading replicas allowed from 5 to 8” is out. Option “Turn on the Multi-AZ option for your primary instance” won’t address the issue, and option “You can’t create the replica in EU West 1.