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Which three statements accurately describe layer 2 Ethernet switches?()

A.Microsegmentation decreases the number of collisions on the network.B.if a switch receives a frame for an unkown destination,it uses ARP to resolve

A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the nework

A. applicationB. presentationC. sessionD. transportE. internetF. data link

Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?()

A.transportB.networkC.presentationD.sessionE.application

A receiving host computes the checksum on a frame and determines that the frame is damaged.Theframe is then discarded.At which OSI layer did this happen?()

A.sessionB.networkC.physicalD.datalinkE.transport

Which layer of the OSI reference model uses the hardware address of a device to ensure message delivery to the proper host on a LAN?()

A.physicalB.datalinkC.networkD.transport

Which set of commands is recommended to prevent the use of a hub in the access layer?()

A.switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1B.switch(config-if)#switchport mode trunk switch(config

Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? ()

A.HDLCB.EthernetC.Token RingD.PPPE.FDDIF.Frame Relay

Acknowledgements, sequencing, and flow control are characteristics of which OSI layer()。

A.Layer2B.Layer3C.Layer4D.Layer5E.Layer6F.Layer7

Which command can be arouter to verify the layer 3 path to a host?()

A.traceroute addressB.tracert addressC.ssh addressD.telnet address

Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN (Choose three.)()。

A.HDLCB.EthernetC.Token RingD.PPPE.FDDIF.Frame Relay

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