CORRECT TEXT
An ISP has given an administrator an IP block for use. The block is 192.168.112.64/26. If the
administrator uses the first usable IP for the router that is installed on the network, how many
usable IPs are left? (Please enter the number and not a word)
Answer: 61
2^6=(64-2)=>62host -> 255.255.255.192 /26
count of 0-61