Certified Ethical Hacker exam may ask about what are the names of Regional Internet Registry(RIR).
There are 5 RIRs as listed below
Africa, portions of the Indian Ocean
Portions of Asia, portions...
The Google dorks can be a very useful tool for both of passive and active reconnaissance.
By combining Google provided search operators like; inurl, intitle, intext, filetype, etc.. you can bring up...
Having sophisticate abnormal activity detection devices would mitigate infiltration attempts from outside of the organization. But how about if the threat is inside of your organization already and has some access...