Which OSI layer does a Router operate at?

A．the Physical Layer

B．the Data Link Layer

C．the Transfer Layer

D．the Network Layer

[单选题]Which OSI layer does a bridge operate at?A．the Physical LayerB．the Network LayerC．the Transport LayerD．the Data Link Layer

[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]is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication。A．The virtual addressB．The subnet addressC．The MAC addressD．The IP address

[单选题]( ) is a six bytes OSI layer 2 address which is burned into every networkin

[单选题]( )is a six bytes OSI layer 2 address which is burned into every networking

[单选题]Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?A． EzonexamA(config-if) ip address 192.168.32.142 255.255.255.240B． EzonexamA(config-if) ip address 192.168.32.143 25

[单选题]Which is the second layer from the bottom in Open System Interconnection Reference Model? (71)．(71) A. ApplicationB．Data linkC．NetworkD．Session

[单选题]Which of the following does not contain a non-finite clause?A．He swims in the river every day.B．Do you mind my shutting the door?C．It's been nice talking to you.D．There being nothing to do, he left.

[单选题]Which of the following does not contain a non-finite clause?A．He swims in the river every day.B．Do you mind my shutting the door?C．It's been nice talking to you.D．There being nothing to do, he left.

[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