Hello @Khizer_Jaan !
Thanks for reaching out!
Due to the NDA, I cannot discuss about the exam scenarios or what is being asked in the exam. Having said that- I would strongly recommend you to go through the EX288 exam objetives here : https://www.redhat.com/en/services/training/ex288-red-hat-certified-openshift-application-developer-...
You should prepare on those objectives through the DO288 course. You should be good !
All the best !