You need to install an rodc in a new branch office and want to use an existing workgroup server running windows server 2012 r2. the office is a plane flight away and is connected via a wan. you want an employee at the branch office, michael, to do the rodc installation because he’s good at working with computers and following directions. what should you do

You should do the following:

Create an account of computer for RODC in the domain controller OU (Organizational unit) as well as allow the Micheal's account to join the computer to the domain.

Explanation:

RODC:

It is called as Read only domain controller that is used to ensure the protection of the servers at remote offices of an organizations.

In this case, you are installing an RODC in a new branch office that is remote. For installation of RODC on windows server 2012 R2, we need to create an account for the computer in the domain controller organizational unit for the installation of RODC. We also need to create an account for Micheal's with the privilege to join that computer to the domain.