计算机网络教程自顶向下方法选择题及答案-Chapt-3-Transport-Layer-QUIZZ21页.docx

Chapter 3 Transport Layer1.One of the main duties of the transport layer is to provide _ communication.A)node-to-nodeB)host-to-hostC)process-to-processD)None of the choices are correct2.A client program normally uses _ port number. A server program normally uses _ port number.A)a well-known; an ephemeralB)an ephemeral; a well-knownC)a private; a well-knownD)None of the choices are correct3.A socket address is a combina