I have 2 scenario questions

I have 2 scenario questions

Scenario 15-1: Creating and Using a Service Account You are an administrator of the Contoso Corporation. You installed a cluster of computers that need to use the same service account for the Widget application/services. What solution would you use?

Scenario 16-1: Planning Domain Controllers and Global Catalog You work for the Contoso Corporation. You have the main corporate office (1,200 users), 2 other large sites (up to 500 users each), and 10 small sites (no more than 10 users). How would you deploy the domain controllers, Operations Master roles, and global catalogs?

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Scenario Questions
Scenario 15-1: Creating and Using a Service Account
When you have multiple computers, you must either use a standard user account used as a service account or as a group Managed Service Account. Of these two options, the group Managed Service Account is the most secure (Jeffrey, 2016). This is because its password will change automatically, preventing the unauthorized users from accessing the system. In order to create a group Managed Service Account, the new adserviceaccount is used (Laura, & Robbie, 2008). After that, you go to each and every server in the cluster and use the Install ADService Account to link the Managed Service Account.

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