1. In your opinion, why did proponents of IPs used Ipv6 instead of Ipv5.
Answers
As per the sources of networks, IPv5 was particularly developed to use it as an Internet streaming protocol all alone and was named as ST.
It all happened during the 1970s and was released to make it more comfortable for the transfer of data packets in the corresponding frequencies making the communication good. So, we can say that it was developed with the motto of creating some good video and audio communications with an ideal packet transmission rate.
Whereas, IPv6 address has been introduced for the next era's IP evolution and the process of spreading the usage of this address has started. IPv6 was developed as the scarcity of IPv4 addresses might happen any sooner. In addition, IPv6's features are more friendly and flexible with trillions and trillions of address availability.
The difference in the purposes of building IPv5 and IPv6 is what made the proponents of IPs use IPv6 (to allow more devices to connect to the internet) rather than IPv5 (ST that is a streaming protocol, an experiment!)