Which one of the following prefixes matches 16.202.161.107?
Which one of the following prefixes matches both 92.110.190.79 and 92.110.188.22?
Which one of the following address prefixes contains 207.150.66.128/25?
Enter an address prefix that matches 81.110.77.17:
Enter an address that matches 212.248.4.128/25: