How many unique addresses are available for assignment to hosts in the network of 10.100.16.0 with subnet mask 255.255.252.0?

How many unique addresses are available for assignment to hosts in the network of 10.100.16.0 with subnet mask 255.255.252.0?

• 254
• 510
• 1022
• 4094

Explanation: To calculate how many unique addresses are available with a given network and subnet mask use the following formula:

2^n - 2 = number of addresses

where n = the number of low order bits representing host bits.

2^10 - 2 = 1022

Exam with this question: Networking Devices and Initial Configuration Module 6.2.3 IPv4 Addressing Quiz