Three concepts are central to the OSI model: Service, Interface and

A．Layers

B．applications

C．Protocols

D．Networks

[单选题]The following three concepts are essential to the OSI model: service, interface andA．networksB．applicationsC．protocolsD．layers

[单选题]The following three concepts are essential to the OSI model:service,interface andA． networksB．applicationsC．protocolsD．layers

[单选题]is the 4th layer of the OSI reference model responsible for reliable network communication between end nodes.A．Data link layerB．Session layerC．Transport layerD．Application layer

[单选题]Morgan Rees has always been a good businessman. He used to own three petrol

[单选题]Morgan Rees has always been a good businessman. He used to own three petrol

[单选题]Morgan Rees has always been a good businessman. He used to own three petrol

[单选题]Morgan Rees has always been a good businessman. He used to own three petrol

[单选题]Morgan Rees has always been a good businessman. He used to own three petrol

[单选题]__________the sun is the central body of the solar system so the nucleus is the core of the atom．A．WhenB．IfC．Now thatD．Just as

[单选题]The central theatre has a seating __ of more than 3,000 people.A． capabilityB． capacityC． abilityD． facility