You have just installed two new linux servers to handle a new application. you want to integrate user authentication between linux and your existing windows server 2012 r2 domain controllers. what can you do?

Create a realm trust  is the correct answer to the following question

Explanation:

Steps to create realm trust:

Firstly, you have to open your windows then click, on the start menu  then, you click on the Administrative tool then you found Active directory Trust and Domain.Then, there is the console tree, then click the right button of you mouse on the domain and click on the properties.Then, Trust tab appears and you have to click on the new Trust and then next.Then, Trust name page appears and you have to type the name of the realm for aim the realm.Then, Trust type page appears and you have to select the option of the realm trust and then next.Finally, in the Transitivity Type, you have to select your own type and then in the page of Direction of trust you have to select you direction of your own desire. Then, you have to follow the instructions.

The answer should be b.