The OSI model has （）layers.A、 fourB、 fiveC、 sixD、 seven
The OSI model has （）layers.
- A、 four
- B、 five
- C、 six
- D、 seven
相关考题：
●The OSI (68) model，sometimes also called ISO or 7 layers reference model for communication.has been developed by the International Standards Organization in early 1980's.(68) A．referentB．referenceC．referanceD．refering
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The OSI(66)model, sometimes also called ISO or 7 layers reference model for communication, has been developed by the International Standards Organization in early 1980's.A．referentB．referenceC．referanceD．refering
OSI is a theoretical model that shows how any two different systems can communicate with each other. Router, as a networking device, operate at the ______ layer of the OSI model.A．transportB．applicationC．networkD．physical
The TCP/IP stack is a complete set of networking protocols. The OSI Model was meantto be a standardized way of connecting devices together. and most protocols have some directcorrelation to the OSI Model. The OSI Model has 7 layers. the foruth layer is called(75)A. physical layerB. data link IayerC.application layerD.transport layer
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Which of the following layers of the TCP/IP model most closely corresponds to the network layer of the OSI model?（）A、ApplicationB、InternetC、TransportD、NetworkE、Data Link
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An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm（）。A、The PC has connectivity with a local host.B、The PC has connectivity with a Layer 3 device.C、The PC has a default gateway correctly configured.D、The PC has connectivity up to Layer 5 of the OSI model.E、The PC has the TCP/IP protocol stack correctly installed.
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The TCP/IP network model differs from the more popular OSI model. Which of the layers below belong to the TCP/IP model?（）A、application layerB、session layerC、transport layerD、internet layerE、network layerF、data link layerG、physical layer
Why does the data communication industry use the layered OSI reference model? (Choose two.)（）A、It divides the network communication process into smaller and simpler components， thus aiding component development， design， and troubleshooting.B、It enables equipment from different vendors to use the same electronic components， thus saving research and development funds.C、It supports the evolution of multiple competing standards， and thus provides business opportunities for equipment manufacturers.D、It encourages industry standardization by defining what functions occur at each layer of the model.E、It provides a means by which changes in functionality in one layer require changes in other layers.
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多选题The TCP/IP network model differs from the more popular OSI model. Which of the layers below belong to the TCP/IP model?（）Aapplication layerBsession layerCtransport layerDinternet layerEnetwork layerFdata link layerGphysical layer
多选题Why does the data communication industry use the layered OSI reference model (Choose two.)（）。AIt divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.BIt enables equipment from different vendors to use the same electronic components, thus saving research and development funds.CIt supports theevolution of multiple competing standards, and thus provides business opportunities for equipment manufacturers.DIt encourages industry standardization by defining what functions occur at each layer of the model.EIt provides a means by which changes in functionality in one layer require changes in other layers.
单选题A computer is connected to the network through a NIC， which has a unique assignment that is called the Ethernet MAC address. Which layer of the OSI model does the MAC address use to communicate with the network？（）A networkB applicationC sessionD data link
单选题An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm（）。AThe PC has connectivity with a local host.BThe PC has connectivity with a Layer 3 device.CThe PC has a default gateway correctly configured.DThe PC has connectivity up to Layer 5 of the OSI model.EThe PC has the TCP/IP protocol stack correctly installed.
单选题Which of the following layers of the TCP/IP model most closely corresponds to the network layer of the OSI model?（）AApplicationBInternetCTransportDNetworkEData Link
多选题In the OSI model, at which layers do WANs operate at?（）AApplicationlayerBPresentationlayerCSessionlayerDTransportlayerENetworklayerFDatalinklayerGPhysicallayer