A port number,which identifies an application on a host,exists at what level of the OSI model?
A)Application
B)Transport
C)Network
D)Data link

Question

Quizplus · Accepted Answer

Port numbers are used to identify specific applications running on a host and are associated with a transport layer protocol, such as TCP or UDP, which operate at the transport layer of the OSI model. Therefore, the correct answer is B)Transport.

A Port Number,which Identifies an Application on a Host,exists at What