不挂科搜题免费

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.