$1.$ What is the relation between the Availability Zone and Region?

$2.$ What are the advantages of AWS IAM?

$3.$ When you create AWS, what is the default account type? Is it preferable to use root account in AWS as security point of view $$ give your recommendation? If yes, why and if No what is the oth$-$er option that you can use.

$4.$ Who provides access to the AWS account? What is the difference between IAM User and IAM Group? How to embed IAM policies to them? What is the purpose of the IAM policies?