What is the approximate number of host IPs scanned during ServiceNow Discovery with an IP network configuration of 180.181.0.0/16?

What is the approximate number of host IPs scanned during ServiceNow Discovery with an IP network configuration of 180.181.0.0/16?

• A. ~5 million
• B. ~1 million
• C. ~65 thousand
• D. ~500,000 thousand

Answer: (C)

The configuration of an IP network using the CIDR notation of /16 indicates that the first 16 bits are reserved for the network identifier, while the remaining 16 bits are available for host addresses. In this case, the subnet mask of /16 allows for 2^16 possible combinations for host addresses. To calculate the total number of potential hosts in the network, the formula 2^(number of host bits) is applied. For a /16 subnet, this translates to 2^(32 - 16), as there are 32 bits in total for an IPv4 address. 2^(32-16) = 2^16 = 65,536 Thus, a network configuration of 180.181.0.0/16 can accommodate approximately 65,536 host IP addresses. This number reflects the ability to assign these addresses to devices within that subnet, making choice representing around 65 thousand the correct answer.

The configuration of an IP network using the CIDR notation of /16 indicates that the first 16 bits are reserved for the network identifier, while the remaining 16 bits are available for host addresses. In this case, the subnet mask of /16 allows for 2^16 possible combinations for host addresses.

To calculate the total number of potential hosts in the network, the formula 2^(number of host bits) is applied. For a /16 subnet, this translates to 2^(32 - 16), as there are 32 bits in total for an IPv4 address.

2^(32-16) = 2^16 = 65,536

Thus, a network configuration of 180.181.0.0/16 can accommodate approximately 65,536 host IP addresses. This number reflects the ability to assign these addresses to devices within that subnet, making choice representing around 65 thousand the correct answer.