What is the network ID address of the IPv4 subnet that includes the IP address 114.180.192.120/28?
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A. B. C. D.C
The given IPv4 address 114.180.192.120/28 is a Classless Inter-Domain Routing (CIDR) notation, which represents the IP address and subnet mask length in bits. In this case, the subnet mask length is 28 bits, which means that the first 28 bits of the IP address represent the network portion, and the remaining 4 bits represent the host portion.
To determine the network ID address of the given IPv4 subnet, we need to perform a bitwise logical AND operation between the IP address and the subnet mask. The subnet mask for a /28 subnet is 255.255.255.240, which is represented in binary as 11111111.11111111.11111111.11110000.
Converting the IP address 114.180.192.120 into binary form, we get: 01110010.10110100.11000000.01111000
01110010.10110100.11000000.01110000
Converting the result back to decimal form, we get the network ID address of the subnet: 114.180.192.112
Therefore, the correct answer is C. 114.180.192.112/28.