Answer: IPv4(Internet protocol version 4)) =32 bits
IPv6(Internet protocol version 6) =128 bits
Step-by-step explanation: IP(Internet protocol)address are the unique addresses that is provided to the hardware components that are attached with the internet service. The identification of the hardware devices are made on the basis of IP address .It is a numerical notation .
The most commonly used version of the IP addresses are IPv4 (Internet protocol version 4)and IPv6(Internet protocol version 6) that persist of 32 bits and 128 bits address respectively. IPv4 and IPv6 has different bits due to the growth of the internet facility and improvement in the version.Most commonly used internet service at current time is IPv6.