- A.FTP
- B.UDP
- C.IP
- D.HTTP
- A.full-duplex
- B.half-duplex
- C.simplex
- D.complex
- A.Email address and IP address
- B.MAC address and port address
- C.MAC address and IP address
- D.port number and IP address
- A.is made of
- B.composed of
- C.is composed of
- D.is consisted of
- A.Buffer
- B.Source-quench messages
- C.Buffering
- D.Windowing
- A.Buffer
- B.Source-quench messages
- C.Buffering
- D.Windowing
- A.transmitting devices
- B.transmitted devices
- C.receiving devices
- D.received devices
- A.Buffer
- B.Source-quench messages
- C.Buffering
- D.Windowing
- A.transmitting devices
- B.transmitted devices
- C.receiving devices
- D.received devices