单选题What is the purpose of a network mask?（）A It is used to identify the maximum hop count of a subnetworkB It is used to identify an IP address as either private or publicC It is used to identify the network to which an IP address belongsD It is used to i
题目
单选题
What is the purpose of a network mask?（）
A
It is used to identify the maximum hop count of a subnetwork
B
It is used to identify an IP address as either private or public
C
It is used to identify the network to which an IP address belongs
D
It is used to identify the total number of bits present in an IP address
相似考题
参考答案和解析
正确答案：
B
解析：
暂无解析