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．transport

B．application

C．network

D．physical

[单选题] 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 (71) layer of the OSI model．(71)A．transportB．applicationC．networkD．physical

[单选题]A．t which layer of the OSI model does the protocol that provides the information displayed by the "show cdp neighbors" command operate?A．TransportB．PhysicalC．ApplicationD．Data linkE．Network

[单选题]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

[单选题]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

[单选题]The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the（）.A . lifting capacity of the winchB . location of the boomC . position of the guyD . weight of the load

[单选题]Theoretical perfect combustion in a diesel engine yields by-products of （）.A . aldehydes and carbon dioxideB . water vapor and carbon monoxideC . nitrogen and carbon monoxideD . water vapor and carbon dioxide

[单选题]Theoretical perfect combustion in a diesel engine yields by-products of_____.A．aldehydes and carbon dioxideB．water vapor and carbon monoxideC．nitrogen and carbon monoxideD．water vapor and carbon dioxide

[试题](c) Calculate the theoretical ex rights price per share and the net funds to be raised by the rights issue, anddetermine and discuss the likely effect of the proposed expansion on:(i) the current share price of Merton plc;(ii) the gearing of the compa

[单选题]液液萃取法可选用的溶剂系统有A．HO-EtOB．HO-MeCOC．HO-CHClD．EtOH-CHClE．HO-MeOH

[单选题]H．o为A．两样本阳性率相等B．两总体阳性率相等C．样本所在的总体率与已知总体率相等D．样本率与总体率不等E．样本所在的总体率>0.1