CORRECT TEXT
Your ISP has given you an IP block for your use. The block is 192.168.112.64/26. If your network administrator uses the first usable IP for the router he’s installed on your network, how many usable IPs do you have left?
Answer: 61
Explanation:
32 bits of IP address minus 26 bits is 6 bits.
minus 1 for address of network
minus 1 for address of broadcast
minus 1 for address of router
2^6 – 3 = 61