At which of the following layers does the UDP protocol operate?（）A、Layer 1B、Layer 4C、Layer 6D、Layer 7
At which of the following layers does the UDP protocol operate?（）
- A、Layer 1
- B、Layer 4
- C、Layer 6
- D、Layer 7
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
In which of the following layers of the OSI model does the TCP protocol operate?() A.SessionB.NetworkC.Data linkD.Transport
Which of the following layers is associated with the physical hardware address of a network node?() A.Layer 1B.Layer 2C.Layer 6D.Layer 7
Which of the following OSI model layers is used for logical addressing?() A. PhysicalB. TransportC. NetworkD. Data link
A crossover cable is MOST commonly associated with which of the following layers of the OSI model?() A.SessionB.ApplicationC.NetworkD.Physical
In the OSI model, which of the following layers would be the cause of a session time－out while browsing the web?() A.Laye r2B.Layer 3C.Layer 5D.Layer 7
Which of the following layers of the TCP／IP model most closely corresponds to the network layer of the OSI model?() A.ApplicationB.InternetC.TransportD.NetworkE.Data Link
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
You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?() A. NBAR examines data in Layers 1 and 4.B. NBAR examines data in Layers 3 and 4.C. NetFlow examines data in Layers 3 and 4.D. NBAR examines data in Layers 2 through 4.
Which of the following layers of the TCP/IP model most closely corresponds to the network layer of the OSI model?（）A、ApplicationB、InternetC、TransportD、NetworkE、Data Link
You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?（）A、NBAR examines data in Layers 1 and 4.B、NBAR examines data in Layers 3 and 4.C、NetFlow examines data in Layers 3 and 4.D、NBAR examines data in Layers 2 through 4.
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
An administrator attempts to open a web page and sees the following error: 'Error 404: Page not found'. The administrator then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside?（）A、Layer 1B、Layer 4C、Layer 5D、Layer 7
According to the OSI model, which of the following layers is responsible for providing reliablecommunication?（）A、TransportB、NetworkC、SessionD、Data Link
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 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
单选题Which statement is correct regarding NBAR and NetFlow？（）ANetFlow uses five key fields for the flowBNBAR examines data in Layers 3 and 4CNetFlow examines data in Layers 3 and 4DNBAR examines data in Layers 2 through 4ENetFlow examines data in Layers 2 through 4
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
单选题At which of the following OSI model layers is HTTPS encryption performed?（）ALayer 3BLayer 5CLayer 6DLayer 7
多选题In the OSI model, at which layers do WANs operate at?（）AApplicationlayerBPresentationlayerCSessionlayerDTransportlayerENetworklayerFDatalinklayerGPhysicallayer
单选题You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBARand NetFlow？（）A NBAR examines data in Layers 1 and 4.B NBAR examines data in Layers 3 and 4.C NetFlow examines data in Layers 3 and 4.D NBAR examines data in Layers 2 through 4.
单选题Which of the following layers is associated with the physical hardware address of a network node?（）ALayer 1BLayer 2CLayer 6DLayer 7
单选题Which of the following OSI model layers is used for logical addressing?（）APhysicalBTransportCNetworkDData link