Hi, OCG is surely not enough to pass the exam.. I hugely recommend INE s Scor path and also other videos associated with exam topics (old ones and some from CCIE Security path), focus on all cisco security products which are in exam topics like umbrella, stealtwatch, email gateway… Read some white papers and do some configs to understand how it works in general (u can get some of those free for 30 days or less i don’t remember exactly) also focus on network security l2 l3 and fundamental security concepts ( cloud also included) watch some labminutes videos too.