A subnet mask of ___________ means that all computers with only the same first two bytes in their IPv4 addresses are on the same subnet.

A subnet mask of ___________ means that all computers with only the same first two bytes in their IPv4 addresses are on the same subnet.

A subnet mask of ___________ means that all computers with only the same first two bytes in their IPv4 addresses are on the same subnet. 



a. 11111111.0.0.0
b. 255.255.255.0
c. 255.0.0.0
d. 255.255.0.0
e. 255.255.255.255


Answer: D


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