試題詳解

9. Suppose computers A and B have IP addresses 10.105.1.113 and 10.105.1.91, respectively, and they both use the same netmask N. Which of the values of N given below should be used if A and B belong to the same network?
(A) 255.255.255.255
(B) 255.255.255.250
(C) 255.255.255.240
(D) 255.255.255.224
(E) 255.255.255.192