英译汉（Translate to Chinese）：message transport
LDP session建立前需要建立TCP连接,连接之前会选择主动方和被动方,如图所示的组网中哪个设备将成为TCP发起主动方()。A.如果Hello Message中没有携带Transport Address，则SWA将成为主动方B.如果Hello Message中没有携带Transport Address，则SWB将成为主动方C.如果Hello Message中携带Transport Address，则Transport Address大的成为主动方D.如果Hello Message中携带Transport Address，则Transport Address小的成为主动方
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● Networks can be interconnected by different devices. In the physical layer，networks can be connected by（1）or hubs，which just move the bits from one network to an identical network. One layer up we find bridges and switches，which operate at data link layer. They can accept（2）,examine the MAC address，and forward the frames to a different network while doing minor protocol translation in the process. In the network layer，we have routers that can connect two networks. If two networks have（3）network layer， the router may be able to translate between the packet formats. In the transport layer we find transport gateway， which can interface between two transport connections. Finally，in the application layer， application gateways translate message（4）.As an example， gateways between Internet e-mail and X.400 e-mail must （5）the e-mail message and change various header fields.（1）A.reapersB.relaysC.connectorsD.modems（2）A.framesB.packetsC.packagesD.cells（3）A.specia lB.dependentC.similarD.dissimilar（4）A.syntaxB.semanticsC.languageD.format（5）A.analyzeB.parseC.deleteD.create
根据下面的文字资料回答 71～75 题 connected by（ 1 ）or Hubs,which just move the bits from one network to an identical network. One layer up we find bridgas and swiehes,which operate at data link layer. They can accept （ 2 ） , examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer,we have touters that can connect two netwoks. If two networks have（ 3 ）network layer,the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which cart interface between the two transport connections. Finally, in the application layer, application gateways translate message（ 4 ）. As an example,gateways between Internet e-mail and X.400 e-mail must （ 5 ）the e-mail message and change various header fields.第6题：文中（ 1 ）处正确的答案是（ ）。A．reapersB．relaysC．connectsD．modems
The reason ________ I‘m writing is to ask for your permission to translate your latest novel into Chinese. A. because B. why C. for D. as
Networks can be interconnected by different devices in the physical layer networks can be connected by（ ）_or hubs.which just move the bits from one network to an identical network.One layer up we find bridges and switches which operate at data link layer.They can accept（ ）examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer,we have routers that can connect two networks,If two networks have（ ）network layer,the router may be able to translate between the packer formats.In the transport layer we find transport gateway,which can interface between two transport connections Finally,in the application layer,application gateways translate message（请作答此空）.As an example,gateways between Internet e-mail and X.400 e-mail must（ ）the e-mail message and change various header fields.A.syntax B.semantics C.language D.format
在使用JavaMailAPI发送邮件时可以使用哪个方法？（）A、Transport.send（）B、Store.sent（）C、Message.send（）D、Message.sent（）
Which layer of the OSI reference model uses the hardware address of a device to ensure message delivery to the proper host on a LAN?（）A、physicalB、datalinkC、networkD、transport
