REGION::- A Region in oracle cloud is the geographical location where Oracle's Data centers are located and where our cloud resources such as Servers, Databases, and storage are Deployed.

Region AD

AD stands for (AVAILABILITY DOMAIN).

AD is a place where in a particular Region Oracle Built there Data Centres.They select CITIES... In one region there are (Maximum 3 & Minimum 1)Location{AD} It is an large, isolated data center within a Region , provides high availability and Disaster Protection.

Region FD

FD stands for (FAULT DOMAIN)

Every AD has a (3FD)SERVER ROOMS. Where you keep your servers safely. There are 3 FD's (FD1/FD2/FD3) It Depends on that how much is your Business is Growing.

CONCLUSION::-

Availability Domain is an isolated Data center within a region. while a Fault domain is a logical grouping of hardware within an Availability domain. Fault domain help protect applications from Hardware failures, and availability domain help provide Higher Availability across Data Centers.

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