Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 177 discussion

The solution that will provide DR with the LOWEST RTO (Recovery Time Objective) is option D. Option D provisions a new Amazon Connect instance with all existing users and contact flows in a second Region. It also sets up an Amazon Route 53 health check for the URL of the Amazon Connect instance, an Amazon CloudWatch alarm for failed health checks, and an AWS Lambda function to deploy an AWS CloudFormation template that provisions claimed phone numbers. This option allows for the fastest recovery time because all the necessary components are already provisioned and ready to go in the second Region. In the event of a disaster, the failed health check will trigger the AWS Lambda function to deploy the CloudFormation template to provision the claimed phone numbers, which is the only missing component.

D looks most appropriate

C accounts for the phone numbers and all other resources. D doesn't

Setting up phone numbers is more complex and time consuming, than setting up users. Option D waits until the disaster happens to provision the phone numbers. Option C is right, because it is quicker as compared to option D. Also, it makes sure the users are not duplicated upfront.

by pre-provisioning a new Amazon Connect instance in a second AWS Region with the necessary contact flows and phone numbers already in place. The remaining task at the time of disaster recovery is to deploy the users, which can be done using an AWS Lambda function triggered by a CloudWatch alarm when the primary instance becomes unavailable, as determined by a Route 53 health check.

Amazon Connect is not on the list of services required for this exam. At least as of 08.01.24 https://d1.awsstatic.com/training-and-certification/docs-sa-pro/AWS-Certified-Solutions-Architect-Professional_Exam-Guide.pdf

Option D

Amazon Connect gives you a URL, for which you can add a record in route 53 and hence have a health check.

D seems to fit all requirements, however C & D seem to be very similar. Only difference is whether to upload users or phone numbers through Cloud Formation. It seems users, routing profiles, queues, and flows get created with ReplicateInstance API https://docs.aws.amazon.com/connect/latest/adminguide/create-replica-connect-instance.html

Apparently Route 53 can't manage Amazon Connect DNS names or health checks. https://docs.aws.amazon.com/connect/latest/adminguide/update-your-connect-domain.html#new-domain-custom

D i guess

I vote for B since I was not able to find a way to make Route53 serve the Amazon connect URL and therefore it cannot perform healthcheck. If someone has more information on this - please share

why not letter C "CloudFormation template that provisions all users" insted of "CloudFormation template that provisions claimed phone numbers" of letter D

I'm voting B because i don't think it's possible to use Amazon Route 53 health check to verify the availability of Amazon Connect

why not C?

D. Provision a new Amazon Connect instance with all existing users and contact flows in a second Region.

D is the better solution.