ये वीडियो Availability Zones aur Regions ke bare mein explain kar raha hai. Basically, ek region (jaise Mumbai) mein multiple availability zones hote hain jo ek-dusre se kaafi door hote hain (approx 100km). Isse yeh ensure hota hai ki agar ek availability zone mein koi problem aati hai (jaise electricity cut ya natural disaster), toh dusre availability zones mein services chalti rahen. Har ek availability zone ka apna power supply aur network connectivity hota hai. Isse application ki high availability aur disaster recovery banta hai. Aage ke videos mein edge locations aur local zones ke bare mein bataya jayega. Reasons for Multiple availablility zones Disaster Recovery Every Region has typically 2 - 6 AZs each separated atleast by 100Kms Data is transferred in an Encrypted format between the AZs Every AZ has also its own Code name