@Redcoder I think your exam is going to be EX200 aka RHCSA for which you need to complete two courses RH124 & RH134.
As to your specific query - "How to pass a Red Hat Exam ?" -
All I can tell you with my experience is that you need to really work and train yourself on the official exam objectives which, for EX200 can be found here
Red Hat exams are practical exams wherein you need to configure your exam VMs are per the objectives and the configurations need to be persistent across reboots. The exams are NOT MCQs based.
Go through all the topics of both the courses RH124 & RH134 - learn the concepts, apply it through the labs/guided exercises and see the wider picture in your lab terminals. Once you got a concept, play with it, break the systems and then try to resolve those errors on your own. Every chapter has a grading lab at the end of it - which will give you two things :
1. A bunch of tasks which you need to solve/complete on your own. You have hint and solutions hidden incase you need to see how to do it.
2. A glimpse of how grading is done to mark pass for each of the lab objectives met successfully.
DO NOT look at the solution initially and try to achieve the objectives of the lab on your own - understand where you got stuck, what needs to be done to oversome sudden unexpected scenarios, how to undo some mistakes, how to check logs, how to verify whether you have done a task or not and what the grading script is expecting etc.
Also learn to take help from the terminal itself like man pages and other documentation which is available in the exam.
Another most important thing is that each course has comprehensive review labs at the end of the course - which will help you work /test on a comprehensive list of tasks as enshrined in the exam objectives and it also has grading to test your preparedness. You should be able to complete those labs easily and within a standard time if you want to makr yourself ready to take the exam.
Last but not the least, I will recommend to go beyond the exam objectives and cover each topic mentioned in the course from a wider technical perspective - and also augment it with the help of other docs and internet especially RHLC where you can take help from others as well.
Remember this :
"The Red Hat Certified System Administrator (RHCSA) certification is a globally recognized credential that validates a professional's ability to effectively manage and administer Linux systems. Possessing this certification not only demonstrates a solid foundation in system administration tasks but also signifies a commitment to excellence in the field of Linux system management."
