Salesforce Updated Development-Lifecycle-and-Deployment-Architect Exam Questions and Answers by erick

A full sandbox would be appropriate for diagnosing reports of poor performance when accessing certain Visualforce pages, as it provides a complete copy of the production data and metadata, which allows the developers to replicate and troubleshoot the issue in a realistic environment. A partial copy sandbox would not be appropriate, as it only provides a sample of the production data, which may not reflect the actual volume and complexity of the data that affects the performance. A developer sandbox would not be appropriate, as it only provides a copy of the production metadata, but not the data, which makes it impossible to test the performance of the Visualforce pages with real data. A developer pro sandbox would not be appropriate, as it also only provides a copy of the production metadata, but not the data, which makes it impossible to test the performance of the Visualforce pages with real data.

A product owner is responsible for defining the scope and prioritizing the backlog of the project. A product owner can help the COE manage the scope creep between the different projects by aligning the business goals and ensuring the value delivery. A scrum master, a release manager, and a change manager are not directly involved in scope management.

The best option for UC is to refresh Stage now, and do not refresh UAT. This way, Stage will be on the preview instance and UAT will not. This will allow UC to test their application on both the current and the next Salesforce version, and ensure that they can release on the current version without any issues. Option B is incorrect because it is not necessary to check the Sandbox Preview Guide or refresh and redeploy to UAT. Option C is incorrect because it is too late to work with support to get on the preview instance after the cutoff dates. Option D is incorrect because it will result in both Stage and UAT being on the same version, which will not allow UC to test their application on the next Salesforce version.

 In the post refresh plan, modifying external ids to a known valid set of values for UAT is the best way to resolve the issue of objects that have external ids from production no longer pointing to valid external ids in the UAT environment. This way, the data integrity and consistency across the integrated systems can be maintained. Letting UAT point to production integrations and rolling back each transaction after it finishes is not a good practice, as it can cause data loss or corruption in production. Deleting all the data and using an automated testing tool to create new data across all the systems in UAT is not feasible, as it can take a lot of time and resources. Masking the external id so nobody can see the production value is not a solution, as it does not address the underlying problem of invalid references.