川大软院计网选择题答案Chapter1

精品文档---下载后可任意编辑In the following options, which does not define in protocol (D)Athe format of messages exchanged between two or more communicating entitiesBthe order of messages exchanged between two or more communicating entitiesCthe actions taken on the transmission of a message or other eventDthe transmission signals are digital signals or analog signalsIn the following options, which is defined in protocol (A)Athe actions taken on the transmission and/or receipt of a message or other eventBthe objects exchanged between communicating entitiesCthe content in the exchanged messagesDthe location of the hostsAn application can rely on the connection to deliver all of its data without error and in the proper order. The sentence describes (C).Aflow controlBcongestion-controlCreliable data transferDconnection-oriented serviceThe Internet’s connection-oriented service has a name, it is (A).精品文档---下载后可任意编辑ATCPBUDPCTCP/IPDIPThe Internet’s connectionless service is called (B).ATCPBUDPCTCP/IPDIPWhich of the following nodes belongs to the network coreCA. a Web ServerB. a Host with Win2024 ServerC. a Router with NAT serviceD. a Supernode on Skype NetworkIn the Internet, the equivalent concept to end systems is ()A.AhostsBserversCclientsDroutersIn the Internet, end systems are connected together by (C).Acopper wireBcoaxial cable精品文档---下载后可任意编辑Ccommunication linksDfiber opticsEnd systems access to the Internet through its (C).AmodemsBprotocolsCISPDsocketsIn the following options, which belongs to the network core (B)Aend systemsBroutersCclientsDserversEnd systems, packet switches, and other pieces of the Internet, run (D) that control the sending and receiving of information within the Internet.AprogramsBprocessesCapplication...