Answer-first summary for fast verification
Answer: Request a new certificate by using AWS Certificate Manager (ACM) from the development account. Use Route 53 from the shared account to create validation record sets in the relevant hosted zone.
ACM certificates are regional and can be requested in the account where the app is (development). For DNS validation with hosted zone in shared account, you can create the validation CNAME records from the shared account in the hosted zone, as long as permissions allow. Cross-account validation works this way. KMS for imported certs not needed for ACM public certs.
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A company uses a multi-account structure in the AWS Cloud. The company's environment includes a shared account for common resources. The environment also includes a development account for new application development. The company uses Amazon Route 53 for DNS management. The company manages all its Route 53 hosted zones from the shared account. A SysOps administrator needs to obtain a new SSL/TLS certificate for an application that is deployed in the development account. What must the SysOps administrator do to meet this requirement?
A
Create a new AWS Key Management Service (AWS KMS) key in the shared account. Configure the key policy to give read access to the development account's root principal.
B
Request a new certificate by using AWS Certificate Manager (ACM) from the shared account. Use Route 53 from the shared account to create validation record sets in the relevant hosted zone.
C
Request a new certificate by using AWS Certificate Manager (ACM) from the development account. Use Route 53 from the shared account to create validation record sets in the relevant hosted zone.
D
Create a new AWS Key Management Service (AWS KMS) key in the development account. Configure the key policy to give read access to the shared account’s root principal. Use Route 53 from the shared account to create a validation record set that references the Amazon Resource Name (ARN) of the KMS key.
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