Three concepts are central to the OSI model: Service, Interface andA．LayersB．applicationsC．ProtocolsD．Networks
Three concepts are central to the OSI model: Service, Interface and
A．Layers
B．applications
C．Protocols
D．Networks
相关考题：
The following three concepts are essential to the OSI model: service, interface andA．networksB．applicationsC．protocolsD．layers
The following three concepts are essential to the OSI model:service,interface andA． networksB．applicationsC．protocolsD．layers
The X.25 standard specifies three layers of functionality.Which layers of the OSI model correspond to the X.25 layers?A．the Physical, Network, and Session LayersB．the Physical, Data Link, and Network LayersC．the Physical, Data Link, and Transport LayersD．the Physical, Session, and Presentation layers
● 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
The spiral model is a software development model combining elements of both(73)and prototyping-in-stages, so it's a healthy mix of top-down and bottom-up concepts。A．designB．progamC．codingD．plan
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
In the 7－layer OSI model, which layer switching will take place?() A.Layer twoB.Layer fourC.Layer oneD.Layer three
Which three of the following OSI model layers also belong to the TCP／IP model?() A. The application layerB. The session layerC. The data link layerD. The transport layerE. The network interface layerF. The physical layer
Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）A. presentationB. sessionC. transportD. networkE. physical
The spiral model is a software development model combining elements of both ( ) and prototyping-in-stages, so it's a healthy mix of top-down and bottom-up concepts。A.designB.progamC.codingD.plan
The TCP/IP stack is a complete set of networking protocols.The OSI Model was meant to be a standardized way of connecting devices together,and most protocols have some direct correlation to the OSI Model.The OSI Model has 7 layers,the fourth layer is called______.A.physical layerB.data link layerC.application layerD.transport layer
Which three statements are true about the application of QoS models？ （）A、 The DiffServ model requires applications to signal the network with QoS requirements.B、 The DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.C、 The DiffServ model requires RSVP.D、 The best effort model is suitable for applications such as file transfer and e-mailE、 The IntServ model requires applications to signal the network with QoS requirements.F、 The IntServ model attempts to deliver a level of service based on the QoS specified by each packet
In the 7-layer OSI model, which layer switching will take place?（）A、Layer twoB、Layer fourC、Layer oneD、Layer three
Which three of the following OSI model layers also belong to the TCP/IP model?（）A、The application layerB、The session layerC、The data link layerD、The transport layerE、The network interface layerF、The physical layer
Which three statements are true about the appliance of QoS models？（）A、the DiffServ model requires applications to signal the network with QoS requirementsB、the DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addressesC、the DiffServ model requires RSVPD、the best effort model is suitable for applications such as file transfer and e-mailE、the IntServ model requires applications to signal the network with QoS requirementsF、the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet
Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintaineD.To fix this issue, at which layer should the troubleshooting process begin?（）A、presentationB、sessionC、transportD、networkE、physical
In a cluster using /etc/hosts for name resolution， which of the following describes the minimum requirementsfor the /etc/hosts file？（）A、IP address and IP label of each service and boot interface in the clusterB、IP address and IP label of each service and boot interface in the cluster， loopback interface， and the hostname of the nodeC、IP address and IP label of each service and boot interface in the cluster， the loopbackinterface， and the cluster gatewayD、IP address and IP label of each service and boot interface in the cluster， the loopbackinterface， the cluster gateway， and the subnet network addresses
A cluster node has three network interfaces that support three resource groups with three service IP labels. Each IP label uses IPAT via IP aliasing. One of the adapters fails， and all of the IP labels on it are moved to other interfaces as expected. The system supports the "hot swap" replacement of the network interfaces， and the system engineer has corrected the problem. What will happen to the service IP lab3els when the repaired adapter is noticed by HACMP？（）A、 They will migrate back to the repaired interface.B、 They will not move，the interface will join the pool of available resources.C、 They will not move； the interface will join the cluster as an available non-service adapter. D、 They will migrate to the repaired interface to create an equal number of service IP labels per interface.
多选题Which three of the following OSI model layers also belong to the TCP/IP model?（）AThe application layerBThe session layerCThe data link layerDThe transport layerEThe network interface layerFThe physical layer
多选题Which three statements are true about the application of QoS models？ （）AThe DiffServ model requires applications to signal the network with QoS requirements.BThe DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.CThe DiffServ model requires RSVP.DThe best effort model is suitable for applications such as file transfer and e-mailEThe IntServ model requires applications to signal the network with QoS requirements.FThe IntServ model attempts to deliver a level of service based on the QoS specified by each packet
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Which three statements are true about the appliance of QoS models？（）Athe DiffServ model requires applications to signal the network with QoS requirementsBthe DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addressesCthe DiffServ model requires RSVPDthe best effort model is suitable for applications such as file transfer and e-mailEthe IntServ model requires applications to signal the network with QoS requirementsFthe IntServ model model attempts to deliver a level of service based on the QoS specified by each packet
单选题Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）ApresentationBsessionCtransportDnetworkEphysical
问答题What is a physical data model？Why learn physical data model concepts？