two-way domain trust?

I wanted to add Domain B as the trusted domain for Domain A? What steps do I have to go through?

1. Create two way trust in Domain A and then Domain B first in Active Directory Domain, right?

2. Use the following command to create the trust on Cluster:

3. What is the right command to verify?
4. Is there any commands to show if this is one-way or two-way on Cluster, or have to be on AD?

Please help in details. Thank you!