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In the data link layer, the data unit is called(71)．
A．flame
B．Packet
C．Signal
D．APDU
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更多 “ In the data link layer, the data unit is called(71)．A．flameB．PacketC．SignalD．APDU ” 相关考题
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LANs can be connected by using bridges, which operate in theA．physical layerB．data link layerC．network layerD．transport layer
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Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?（）A、ApplicationB、PresentationC、SessionD、TransportE、NetworkF、Data-Link
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多选题Which of the following correctly describe steps in the OSI data encapsulation process?（）ATransport layer divides a data stream into segments adds reliability flow control informationBData link layer adds physical source destination address an FCS to the segmentCPackets are created when the network layer encapsulate a frame with source destination host address protocol related control informationDPackets are created when the network layers adds layers 3 address control information to a segmentEThe presentation layer translated bits into bits into voltages for transmission across the physical link
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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
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单选题Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?（）A
ApplicationB
PresentationC
SessionD
TransportE
NetworkF
Data-Link
考题
多选题Which of the following correctly describe steps in the OSI data encapsulation process?（）AThe transport layer divides a data stream into segments and may add reliability and flow control information.BThe data link layer adds physical source and destination addresses and an FCS to the segment.CPackets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.DPackets are created when the network layer adds Layer 3 addresses and control information to a segment.EThe presentation layer translates bits into voltages for transmission across the physical link.
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