考题
In the open systems interconnection (OSI) reference model, "layer" means one of seven conceptually complete,(71) arranged groups of services, functions, and protocols, that extend across all open systems.Application layer provides means for the application(72) to access the OSI environment. Presentation layer provides for the selection of a common syntax for representing data.(73) layer provides the means necessary for cooperating presentation entities to organize and synchronize their dialog and to manage their data exchange. Transport layer provides a reliable end-to-end data transfer service. Network layer provides for the entities in the transport layer the means for transferring blocks of data, by(74) and switching through the network between the open systems in which those entities reside. Data link layer provides services to transfer data between network layer entities. Physical layer provides the mechanical, electrical, functional, and procedural means to establish, maintain and(75) physical connections for transfer of bits over a transmission medium.A.ranklyB.levellyC.layeredD.hierarchically
考题
A host computer has been correctly configured with a static IP address, but the default gateway is incorrectly set. Which layer of the OSI model will be first affected by this configuration error?A. Layer 1B. Layer 2C. Layer 3D. Layer 4E. Layer 5F. Layer 6E. Layer 7
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Which OSI layer is associated with the following: The acknowledgement of transmissions, sequencing, and flow control across a network?A. Layer 2B. Layer 3C. Layer 4D. Layer 5E. Layer 6F. Layer 7
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Acknowledgements, sequencing, and flow control are functions that are handled by which layer of the OSI model?A. Layer 5B. Layer 4C. Layer 7D. Layer 6E. Layer 3F. Layer 2G. Layer 1
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AtwhichlayeroftheOSImodeldoestheSpanningTreeProtocol(STP)operateat?()
A.Layer5B.Layer4C.Layer3D.Layer2E.Layer1
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At which lay er of the OSI model does the Spanning Tree Protocol (STP) operate at()
A.Lay er 5B.Lay er 4C.Lay er 3D.Lay er 2E.Lay er 1
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Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?()
A. Layer 2B. Layer 3C. Layer 4D. Layer 5E. Layer 6F. Layer 7
考题
PPP的执行在OSI模型哪个层?()
A.Layer3B.Layer4C.Layer2D.Layer5
考题
Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?()
A.Layer2B.Layer3C.Layer4D.Layer5E.Layer6F.Layer7
考题
Acknowledgements, sequencing, and flow control are characteristics of which OSI layer()。
A.Layer2B.Layer3C.Layer4D.Layer5E.Layer6F.Layer7