NetworkingCâu 48 / 100
What does a subnet mask define?
a.The speed of the network
b.The physical length of a cable
c.The color coding of network wires
d.Which portion of an IP address identifies the network versus the host
Giải thích
A subnet mask divides an IP address into a network portion and a host portion. This lets devices determine whether a destination is on the local network or needs to be routed elsewhere. For example, 255.255.255.0 designates the first three octets as the network.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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