Respondus Lockdown Browser prevents your students from accessing outside resources on their computer. You can use Respondus Monitor to ensure that they are not using outside devices, such as smartphones, tablets, or written notes during the test.
There is a quickstart guide, user guide, and series of video tutorials located at https://web.respondus.com/he/respondus/resources/
The most recent version of Respondus (4.0) can be downloaded here: https://drive.google.com/file/d/1b1N5Zti1BDGK8rcgioLbJbBWDAPJ3sTF/view?usp=sharing
To install it, open the above file, and enter the credentials you were sent by IT in your school email. If you cannot find the specified message, send in a help desk ticket (ext. 884) and they can get the credentials for you.
There is a video tutorial that they can view available here: https://web.respondus.com/he/monitor/resources/
Students can download the Lockdown Browser at this link: https://download.respondus.com/lockdown/download.php?id=883512490