Of course the NDA prevents me from giving specifics of the exam but personally I would that remembering how to get information was easier than necessarily remembering the information itself.
For instance with network Teaming its possible to get most of the commands out of the nmcli-examples man page (apart from the confguration runner ... but you can get that from the man page from teamd.conf).
With ISCSI I find it helps if you use cd and ls a lot in targetcli. Most of the documentation has you running commands in the root of the targetcli prompt but if you cd into the areas then its easier to remember the actual commands (helped by tab completion) and ls helps you remember the things you might have missed.
Other than that ... anything disk space related remember to read every single question before creating everything to make sure you are not doing something wrong which could impact on your ability to do something else and remember to read ALL the questions first before deciding what to do and in what order. It's not good to not have time to even try a couple of questions when they might be easy gimmies if you actually looked at them.
Don't sit there stuck on one question if you have other things to do ... do something else and come back but make sure that everything you do is persistent and anything you only partially do will not beak things if you leave it as is.