Exam Overview:
Number of Questions: 125
Test Duration: 4 Hours
There is no easy way to pass it. I recommend to use safari books video course. https://www.safaribooksonline.com/library/view/learning-path-certified/9780134677552/
If you prefer reading, get a proper book (ISBN - 978-1119252245)
https://www.amazon.co.uk/CEHV-Certified-Ethical-Hacker-Version/dp/1119252245
I can guaranty, that there will be
NMAP questions
tcp/ip and tcpdump...