问题:
What is the purpose of a network mask?()
选项
It is used to identify the maximum hop count of a subnetwork.
It is used to identify an IP address as either private or public.
It is used to identify the network to which an IP address belongs.√
It is used to identify the total number of bits present in an IP address.
答案:
C.It is used to identify the network to which an IP address belongs.