單項(xiàng)選擇題

By default, which of the following factors determines the spanning-tree path cost?（）

A. It is the individual link cost based on latency
B. It is the sum of the costs based on bandwidth
C. It is the total hop count
D. It is dynamically determined based on load

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單項(xiàng)選擇題

Which OSI layer header contains the address of a destination host that is another network?（）

A. application
B. presentation
C. session
D. transport
E. network
F. data link
G. physical

單項(xiàng)選擇題

You have set up an Internet based FTP server, where people can upload and download files. In terms of the OSI model, what is the highest layer used during the FTP sessions.（）

A.Application
B.Presentation
C.Session
D.Transport
E.Internet
F.DataLink
G.Physical