Passed SysOps exam today (89%). I was really worried about exam being difficult from all the forum posts i found outside LinuxAcademy, but at least for me, CSA was way harder than this one. I personally first went LA material twice, then the official book, LA material again and whitepapers. Fairly sure whitepapers and LA material would have been enough, but I would still recommend the book if you want bit deeper knowledge on the subject.
Thanks LinuxAcademy for helping me pass all associate-level certificates.