18-8-2025 4.how AWS is connecting to the IP address ?

it connects private to public ips using NAT ip and also NGW

18-8-2025 2.what is ENI elastic network interface ?

nothing but virtual NIC

19-8-2025 1.what is the ipv4 ?

32 bit numerical address

19-8-2025 2.ipv4 has private and public ip address in that which ip address type we are having in our laptop ?

public ip

19-8-2025 3.why class A and class B ranges are not reserved ?

it is used for public companies and largest companies. so that we can create more sbntes and net ids and ip address based on the group and departments